5020 GPS User Manual V1.14
Flytec AG
Ebenaustrasse 18 , CH – 6048 Horw Switzerland
Tel. +41 41 349 18 88 – [email protected] - www.flytec.ch
Flytec USA
6548 Groveland Airport Road, Groveland, FL 34736, USA
+1.352.429.8600 • [email protected] • http://www.flytec.com
Flytec 5020 Technical Manual
- 2 - © Flytec USA
Flytec USA would like to thank the considerable help from Belinda Boulter editing this manual.
If you find any errors, inconsistencies or feel that some sections need better explanation, please email us at
[email protected] so we can update the manual.
© Flytec USA 2005
All rights reserved.
No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise without permission in writing from Flytec USA. This
manual is protected under US and International Copyright Laws.
Flytec 5020 Technical Manual
- 3 - © Flytec USA
1 Quick Start
1.1 Turning the Unit On and Off
To switch the 5020 on, press Esc/O and confirm this action by pressing Enter when prompted.
To switch the 5020 off, press Esc/O for 3 seconds. The display will inquire “Switch Off??” Press
Enter to confirm. After a long flight with short record intervals the calculation of the digital
signature can take up to one or two minutes. Please wait until this process is finished and then
press Esc/O again to turn off the unit.
1.1 Keypad
Typical Key
Main Setup Menu
===============
Factory Settings
Opt. SW-Packages
================↑
0%
25%
50%
75%
100%
Choose a
route
Choose a
waypoint
On/Off
Accept
Set Marker
User Screen 1
Main Setup Menu
===============
Flight Memory
Waypoints
Routes
Restricted Areas
Simulation
Basic Settings
================↓
Mod A1↑↓ ………… QNH/Gps
Mod A2↑↓ ………… SET 0
S.Thr –0.8 ………... SNK ON/OFF
HT auto …………… Man/Aut Wnd
User Screen 2
User Screen 3
Short press
Choose a user
selectable field
213
Alt. a BG
Long press
12
Wind Spd
5.7
L/D Req
28
Air Spd
.75
Dist to ^
1.87
Dist WP
Flytec 5020 Technical Manual
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1.1 Vario Screen
1.1 Map Screen
During a flight, briefly press Esc to bring up the real-time track map display. Vario and altitude
are displayed digitally below the map. For Competition Routes, the cylinder of the active
waypoint, waypoint names, and a thin dotted line to the next waypoint are also displayed. During
the flight the Zoom In/Out functions are accessible.
Remaining capacity of
battery banks 1 and 2
User selectable field
Digital Variometer
Altitude
User selectable field
User selectable field
Analog Variometer
Units for analog vario
Digital Variometer mode
Function of F1
Function of F2
Information lines
Information lines
Function of F1
Function of F2
Digital Variometer
Altitude
Scale
Track of actual flight
Restricted area
(not yet implemented)
Waypoint of a route
(with cylinder)
Restricted area
(not yet implemented)
Waypoint of a route
(with cylinder)
Direction to last thermal
Bearing to next waypoint
Bearing to 2nd waypoint
Direction of wind
Number of
satellites received
Flytec 5020 Technical Manual
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To view the track of a saved flight, press F1 (Shw Map) while viewing the Flight Analysis page
(see Section 8, “Flight Memory and Flight Analysis”). This display shows your screen-optimized
flight track with scale and waypoints (North is located at the top). You can change the display
using the F1, F2, Enter and Esc keys; all other keys cause the track in the current selection to be
redrawn.
F1 (Zom Out): The map scale is gradually decreased until the screen display is optimized.
F2 (Zom In): The map scale is gradually increased. At maximum zoom individual thermaling
circles will be clearly recognizable, provided a short record interval was selected.
Enter:Reverts the display back to the screen optimized track.
Esc:Back to the Main Setup Menu.
Arrow keys: Use these keys to shift (pan) the plotted area up, down, left and right. This function
is only enabled in Flight Memory mode. During flight, your actual position is in the center of the
map. If your position reaches a border, the map pans automatically.
Note: Depending on the amount of data in the track, it may take a few moments for it to appear.
The status line will show “Wait” or “Ready” accordingly. If you press a zoom or pan key during
the process, the redraw will re-start with new values. This way you will be able to quickly obtain
the desired zoom or section of the track.
1.1 Final Approach Screen
The final approach screen is primarily used on final glide but also may be useful when
approaching turnpoints. The horizontal axis shows the deviation between your current track and
the bearing to goal (or the next turnpoint). The vertical axis shows the deviation between the
necessary glide ratio to goal (or next waypoint) and the best glide of your glider as set in the
Basic Settings. If the glider symbol is below the horizontal axis the target cannot be achieved
without gaining additional altitude. If the glider symbol is on the horizontal axis the target should
User selectable field
User selectable field
User selectable field
Function of F1
Function of F2
Information lines
Bearing to goal
Number of satellites
received
Best glide
Angle between track and
bearing. Each division = 10°
(Example: pilot is tracking 22°
to right of bearing to goal)
Recommendation for track
Glide ratio to goal. Each
division = 0.5 L/D. (Example:
required L/D to goal is 5.7:1)
5.7
Remaining capacity of
battery banks 1 and 2
Flytec 5020 Technical Manual
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just be in reach by flying best glide speed. During thermaling the glider symbol remains centered
on the vertical axis. When your glide ratio has decreased to within 6 points of your best glide the
symbol will be shown at the bottom of the vertical axis. As you climb higher the glider symbol will
move accordingly up the vertical axis.
At the top of the approach display there are 3 small arrows (< ^ >), one of which will appear
when you are on glide (not climbing) to provide heading assistance. If the deviation between
your track and the bearing to goal exceeds 60°, the glider symbol will be grayed. In this case,
switch to the Vario Screen by using Esc to see the compass with the direction markers.
1.1 Main Setup Menu
Flight Memory
List of the flights in memory.
Waypoints
List of the waypoints with the possibility to edit waypoints/coordinates
Routes
List of the routes with the possibility to edit
Restricted Areas
Not Available at this time
Simulation
Activate/deactivate simulation mode
Basic Settings
Customize the instrument and function parameters
Factory Settings
Only for factory service
Opt. SW-Packages
Enable software packages purchased from Flytec.
1.1 Basic Settings
A series of settings in the Basic Settings Menu permit you to program the 5020 according to your
preferences. Press and hold Menu, select Basic Settings in the Main Setup Menu, then move the
cursor to the desired sub menu using the and keys. The current values will be shown. To
alter these values press Enter; the cursor will blink on the first value that may be set in that sub
menu. Use the and keys to modify this value or press Enter to move to the next value.
After modifying a value, press Enter to confirm the new setting and move the cursor to the next
value, or press Esc to recall the previous setting. At any time it is possible to reset the 5020 to
the manufacturer’s tested basic settings in the Basic Settings menu by selecting Init EEPROM.
But please note! All waypoints and routes will be deleted too.
Term
Meaning
Section
Factory Setting
Display Contrast
Range 0 to 100 %
n/a
70%
Record Interval
Time interval per recorded track log
point (1 to 60 sec)
8
10 seconds
Recording Mode
Auto or Manual flight recording
8
Auto
Digital Vario Mode
Vario averager period in seconds
5.3
30 seconds
Vario Tone
Climb tone frequency; modulation;
sink tone frequency; dampening;
pitch
5.2
1200 Hz; Mod = 5;
700 Hz; Damp = 8;
Pitch = 3
Battery Type
Type of battery used (alkaline on
NiMH
10.2
Alkaline = 0
Audio Threshold
Threshold for ascent audio, 0 to 40
ft/min (or 0 to 20 cm/sec)
5.2
4 ft/min (2 cm/sec)
Sink Tone Thres.
Threshold for descent audio, 10 to
2000 ft/min
5.2
160 ft/min (0.8 m/s)
L.Thermal Thres
Climb rate threshold for the last
thermal, 100 to 600 fpm
(0.5 to 3.0 m/s)
7.16
200 ft/min
Flytec 5020 Technical Manual
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Vario/Spd Delay
Turbulence pre-filter 1 to 10;
Response delay for analogue vario
and speed, range 6 to 40 (0.6 to 4.0
sec)
5
Pre filter = 1
Delay = 12 (1.2
sec)
Best L/D
Best glide ratio with corresponding
speed
n/a
L/D = 8.0
Speed = 25
Stallspeed
Stall alarm and altitude limit
Range: 0 to 61 mph / 0 to 26246 ft
6.1
0 mph @ 0 ft
Spd Ccorr. Vane
Vane wheel correction 70 to 150 %
6
100 %
Units
m or ft; m/s or fpm; k/h or mph or kn;
ºC or ºF; km or miles
n/a
0 = m; 0 = m/s; 0 =
k/h; 0 = ºC; 0 = km
Coordinate Format
dd°mm.mmm’ or dd,ddddd° or
dd°mm’ss” or UTM or Swiss Grid
7.8
0 = dd°mm.mmm’
Init GPS
Display of geodetic ID = WGS84
7.8
No setting required
Time, Date, Year
UTC offset; Day, Month, Year
9.2
not set
Pilotname
Enter pilot name (max 25 letters)
n/a
not set
Glider type
Enter glider type for OLC
n/a
not set
Glider ID
Enter glider registration for OLC
n/a
not set
Del all records
Clear flight memory (all records)
8
no
Del all WP& Rts
Deletion of all waypoints and routes
7.8, 7.11
no
Init EEPROM
Back to factory settings
1.7
no
Init CTRs
Reorganization of the memory
n/a
no
1.1 User Selectable Fields
Alt a. BG Altitude above the best glide path to the next waypoint*
FL (ft) Flight Level (not adjustable by the user)
Dist CTR Distance to nearest flight restricted area*
Air Spd Speed measured with the vane wheel (true air speed) or calculated airspeed
Alt a. Gl Calculated height above goal around remaining turnpoints in a route, including wind
speed and direction*
Dist Gl Distance to goal calculated along a route*
Vario The digital vario as user-field (only needed on the final glide screen)
A1 The altitude A1 as user-field (only needed on the final glide screen)
Wind Spd Wind speed*
Time Time of day
Fl Time Flight time since take off
Gnd spd Ground speed*
Spd Diff Wind component (ground speed minus true airspeed)*
Dist WP Distance to chosen waypoint*
Bearing Direction to chosen destination*
Track Flight direction (course)*
Temp Temperature inside the housing
Alt 2 Reference altitude - if desired can be set to 0 at any time
Alt 3 Cumulative gained height
QNH hPa Air pressure in hectoPascals
L/D gnd Actual L/D over ground (ground speed/sink)*
L/D air Actual L/D in air, only available with vane wheel connected
L/D req L/D required to reach a waypoint*
Dist to^ Distance to last thermal*
*Only active when the GPS receiver is switched on
Flytec 5020 Technical Manual
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1.1 Battery Management
The 5020 has 2 bar scales that indicate the remaining capacity of the batteries. There are 2
banks of 2 AA batteries each. Battery Bank 2 may be empty but Bank 1 must always be
equipped; however it is recommended that bank 2 be equipped as well. As soon as the first bank
is depleted, the instrument will automatically switch to the second bank. If the second bank is not
yet completely used up, and Bank 1 is equipped with new batteries, the instrument switches to
the first bank again. After a long flight it is recommended that the partly used batteries of Bank 2
be moved into Bank 1, and Bank 2 be equipped with new batteries. This will allow the 5020 to
completely use up the batteries without the danger of having empty batteries during a flight.
The following battery types are recommended:
• Alkaline AA 1.5V (e.g., Energizer or Duracell) - Estimated operating time 20 hours per bank.
• NiMH AA 1.2V 2100mAh - Estimated operating time 16 hours per bank.
• NiCd batteries may also be used but they have smaller capacities and shorter operating time.
The inserted battery type is not automatically detected by the 5020. Because the various battery
types have different voltages and different temperature behaviour, you must select the battery
type in Main Setup Menu/Basic Settings/Battery Type. The estimated battery life is based on
normal temperature conditions; hotter or cooler operating temperatures will affect battery life.
Please recycle spent batteries
1.1 Data Exchange via PC
The 5020 comes complete with a serial PC interface data cable (9 pol Sub D plug). See section
10.7, “Data Exchange via PC” for information.
The following can be read via this RS232 interface:
• Serial numbers and pilot names
• Waypoint list
• Route list
• A selected flight track log
The following can be uploaded to the 5020:
• Waypoints
• Routes
• Instrument configuration
Bank 1
Bank 2
Bank 1
Bank 2
Important: the 5020 must first be switched on before plugging in the connection cable to the
unit and the computer.
Flytec 5020 Technical Manual
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WARNING: In very rare cases it can happen that a flight instrument does not provide any
data at all or the data is incorrect. Flytec will not be held responsible for accepting any
damage claims arising from a malfunctioning unit. Responsibility for ensuring the safe
execution of his/her flights lies with the pilot alone.
1.1 Transferring New Firmware to the 5020
As is the case with many other new products, particularly during the introduction phase,
improvements or feature enhancements may be expected. Periodically Flytec will post firmware
updates at www.flytec.ch and www.flytec.com for you to download free of charge and upload to
your 5020. To be able to write to your 5020’s flash memory with a PC, you will need to use an
upload utility program named “Flasher.exe,” available from Flytec’s website in zipped form
(flasher.zip). Then you will need to download the actual firmware; it will be called “5020v*.**.moc”
where *.** corresponds to the firmware version number (e.g., 1.13).
1 Technical Data
Measurements: 6-1/2” x 2-3/4” x 1-3/8” (165 x 73 x 38 mm)
Weight: 10 oz. (286 grams) with 4 alkaline batteries
Electrical supply: 2 or 4 alkaline or nickel metal hydride AA batteries
Battery life: up to 40 hours with 4 alkaline batteries
Altimeter: max. 26,000 ft (8000 m); 3 ft (1 m) steps
Variometer: analog +/- 1,600 ft/min (8 m/s); 20 ft/min (0.2 m/s) steps
Variometer: digital +/- 14,000 ft/m (70m/s); 20 ft/min (0.1 m/s) steps
Speed (vane wheel) digital 0-74 mph/ 0-120 km/h/ 0-67 kts
Waypoints: 200 waypoints
Routes: 20 routes with max. 30 waypoints in each
Airspaces: 10 CTR’s with 12 waypoints each
Max. memory time: 120+ hours at 22 second intervals
Number of track log points: 24,000
Number of recorded flights: 100
Screen resolution: 240 x 160 pixel (=1/8 VGA)
Operating temperature: -10º to 113º F (-15º to 45° C)
Data memory and transfer according to the IGC format
The technical details may be altered without notification. Brackets and accessories for hang-
gliding and paragliding are available.
1 Warranty and Liability
Our instruments carry a 24-month warranty. However, physical damage such as a broken
housing or display window as well as damage resulting from water landings are excluded from
this warranty. Flytec AG can accept no liability for faults arising from any abuse or unapproved
use of your instrument.
Important: Contrary to the instructions for data transfer of waypoints or routes, be sure that
the 5020 is turned off when plugging the cable into the computer and the 5020.
Important: Never leave the PC cable hooked up to the unit when it is turned off. This will
consume energy and can drain the battery.
Flytec 5020 Technical Manual
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1 Contents
1 Quick Start .............................................................................................................................................3
1.1 Turning the Unit On and Off.............................................................................................................................. 3
1.2 Keypad............................................................................................................................................................... 3
1.3 Vario Screen...................................................................................................................................................... 4
1.4 Map Screen ....................................................................................................................................................... 4
1.5 Final Approach Screen ..................................................................................................................................... 5
1.6 Main Setup Menu .............................................................................................................................................. 6
1.7 Basic Settings.................................................................................................................................................... 6
1.8 User Selectable Fields ...................................................................................................................................... 7
1.9 Battery Management......................................................................................................................................... 8
1.10 Data Exchange via PC...................................................................................................................................... 8
1.11 Transferring New Firmware to the 5020........................................................................................................... 9
2 Technical Data.......................................................................................................................................9
3 Warranty and Liability .........................................................................................................................9
4 Contents.................................................................................................................................................9
5 Analog Vario ........................................................................................................................................12
5.1 Altimeter and Air Pressure.............................................................................................................................. 12
5.2 Acoustics and Volume Level........................................................................................................................... 13
5.3 Digital Vario ..................................................................................................................................................... 14
6 Airspeed ...............................................................................................................................................14
6.1 Stall Alarm ....................................................................................................................................................... 15
7 GPS Functions ....................................................................................................................................15
7.1 Assessment of Reception Quality................................................................................................................... 15
7.2 Compass and Flight Direction......................................................................................................................... 16
7.3 Track and Bearing........................................................................................................................................... 16
7.4 Speed Over Ground........................................................................................................................................ 16
7.5 Glide Ratio (L/D Ratio).................................................................................................................................... 16
7.6 Head, Cross and Tail Winds — the Wind Component .................................................................................. 17
7.7 Wind Direction and Speed .............................................................................................................................. 17
7.8 Waypoints and Coordinates............................................................................................................................ 17
7.8.1 Editing Waypoints ........................................................................................................................................... 18
7.8.2 Deleting Waypoints ........................................................................................................................................ 18
7.8.3 Inserting Waypoints......................................................................................................................................... 18
7.8.4 Current Coordinate Indicator .......................................................................................................................... 19
7.8.5 Distance to Waypoint ...................................................................................................................................... 19
7.8.6 Saving the Current Position ............................................................................................................................ 19
7.9 The Goto Function .......................................................................................................................................... 19
7.10 Flying Routes .................................................................................................................................................. 20
7.11 Routes: Create – Delete – Alter...................................................................................................................... 21
7.11.1 Creating a New Route..................................................................................................................................... 21
7.11.2 Deleting a Route: ............................................................................................................................................ 22
7.11.3 Altering a Route: ............................................................................................................................................. 22
7.11.4 Changing a Route into the Competition Route: ............................................................................................. 22
7.12 The Competition Route................................................................................................................................... 22
7.13 Competition Route: Set – Alter – Delete ........................................................................................................ 23
7.14 Flying a Competition Route ............................................................................................................................ 23
7.15 Final Approach Screen and Final Glide Calculations .................................................................................... 24
7.16 Relocating Thermals ....................................................................................................................................... 25
7.17 Restricted Area................................................................................................................................................ 25
Flytec 5020 Technical Manual
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8 Flight Memory and Flight Analysis ..................................................................................................25
9 User Selectable Fields .......................................................................................................................26
9.1 Temperature.................................................................................................................................................... 26
9.2 Time and Date................................................................................................................................................. 26
9.3 Flight Time....................................................................................................................................................... 27
10 Other Functions ..................................................................................................................................27
10.1 Simulation........................................................................................................................................................ 27
10.2 Battery Management....................................................................................................................................... 28
10.3 Factory Settings – Device-Specific Parameters............................................................................................. 28
10.4 Optional Software Packages .......................................................................................................................... 29
10.5 NMEA Data Output ......................................................................................................................................... 29
10.6 Data Transfer .................................................................................................................................................. 29
10.7 Data Exchange via PC.................................................................................................................................... 29
10.8 Transferring New Firmware to the 5020......................................................................................................... 30
11 Landing in Water.................................................................................................................................31
12 Warranty and Liability ........................................................................................................................31
Flytec 5020 Technical Manual
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2 Analog Vario
The most important instrument function for any kind of glider flying is the vario. The 5020
displays vertical speed in fpm or m/sec and tells you whether you are climbing or sinking. The
resolution of the analog vario (dial display) is 40 fpm or 0.2 m/s. The first full-scale range is from
+/- 0 to 800 fpm (+/- 4 m/s) after which the display switches automatically to a second range
from 800 to 1600 fpm (4 to 8 m/s). The time interval (damping) over which the measured climb
rates are averaged for the analog vario (and associated sounds) is factory set at 1.2 seconds.
This can be changed to any value between 0.6 sec and 4 sec. in Main Setup Menu/Basic
Settings/Vario/Spd Delay. If the time interval is too short, the vario is very twitchy; if too long, it’s
rather sluggish. A lower dampening value is preferable for smooth light conditions. A greater
dampening value may be desirable in rough turbulent conditions. Note: This setting should not
be confused with vario integration (averager) that can be set for the digital vario display (see
Section 5.3, “Digital Vario”). Additionally, in the Vario/Spd Delay menu a small pre-filter (i.e.,
turbulence filter) can be adjusted with a range of 0.1 second to 1 second (settings 1 to 10).
2.1 Altimeter and Air Pressure
The 5020 tracks and can display 4 different altitudes and the QNH. A1 is shown on the right side
of the vario screen and A1, A2, A3, FL and QNH can be displayed in the user-selectable fields.
A1 Altitude above sea level (QNH).
A2 Altitude with respect to a reference height that can be altered or zeroed at any time.
Press F1 (Nxt Fnc) until “Mod A2
↑↓
“ appears, then use the arrow keys to change
A2. Press F2 to reset A2 to zero.
A3 The total height gained during a flight.
FL (ft) Flight-Level is based on an air pressure of 29.92 inHg (1013 hPa) at mean sea level. It
cannot be adjusted by the user.
You should adjust A1 to display your actual height above sea level (QNH) before starting each
flight. The QNH is originally set at the factory to a sea level pressure 1013hPa. Since it is
unlikely that you are taking off from sea level and the air pressure is also 1013hPa, the correct
altitude should be set. When you first switch on the 5020 the display will show “Mod Alt1
↑↓
.”
Use the arrow keys to set the desired altitude. If you have accessed other screens or
functions prior to setting the altitude, press F1 (Nxt Fnc) to bring up “Mod Alt1
↑↓
.” Note: Once
the flight has begun Alt1 can no longer be adjusted and “Mod Alt1
↑↓
” cannot be brought up with
F1.
If the altitude of a launch place is unknown you can set Alt1 to the GPS-derived altitude
(assuming the GPS has reception) by pressing F2 (QNH GPS). If there is no satellite reception
the 29.92InHg (1013 hPa) altitude will be used (same as FL (ft)).
If you set Alt1 to zero while you are in a planned landing area, then your height above this
location will always be displayed in Alt1. The associated air pressure (QFE) will be the actual air
pressure in hPa at this spot, which deviates from QNH, the pressure at sea level, according to
the difference in altitude.
Flytec 5020 Technical Manual
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2.2 Acoustics and Volume Level
Each time you briefly press 0-I-II, the volume level increases by 25%. The adjustable sound
levels are: 0 - 25% - 50% - 75% - 100%. Each time you press 0-I-II, the chosen volume level
will briefly appear in the display. All of the sound effects described in this section can be heard in
simulation mode (see Section 10.1, “Simulation”). To adjust sounds go to Main Setup
Menu/Basic Settings.
Automatic volume control: If volume is set to 25%, 50%, or 75% it will automatically increase as
your airspeed increases. There will be no increase of the 100% setting since it is already at
maximum volume.
Vario audio threshold: The ascent tone starts when your climb rate exceeds a predetermined
threshold. To set the ascent tone threshold (the lift value that must be exceeded to start the
ascent tone) go to Main Setup Menu/Basic Settings/Audio Threshold. The greater the threshold
value the greater the lift needed to initiate the ascent tone.
Vario beep frequency: The frequency (Hz) of the acoustic vario increases as you encounter
increasing lift. The starting frequency can be set between 600 Hz and 1400 Hz in Main Setup
Menu/Basic Settings/Variotone/asc.F.
Modulation: The rate at which the frequency of the ascent tone increases as you encounter
increased lift is called modulation. The modulation of the ascent audio can be adjusted to values
from 2 to 9 under Main Setup Menu/Basic Settings/Variotone/mod. The higher the value, the
faster the frequency will increase as the lift values increase. A modulation setting of 9 will yield
more audible change at lower climb rates making it best suited for use in mild lift.
Sink Tone Frequency: The Frequency (Hz) of the descent audio decreases as you encounter
increasing sink. The starting frequency can be set between 600 Hz and 1400 Hz in Main Setup
Menu/Basic Settings/Variotone/asc.F.
Dampening: The vario value is re-calculated every 0.2s. Rapid changes in vertical speed
(turbulent air) may result in wide variations in the frequency of the vario audio (piano effect). To
Flytec 5020 Technical Manual
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reduce this, you may add damping to make the vario audio more settled. Set the amount of vario
audio dampening in Main Setup Menu/Basic Settings/Variotone/damp.
Pitch: By altering the pitch value (between 1 and 7) you can customize the beep/pause interval.
A pitch setting of 1 will yield a longer beep with a longer pause between beeps while a setting of
7 will yield a shorter beep with a shorter pause between beeps. The pitch value is set under
Main Setup Menu/Basic Settings/Vario tone/pitch.
Sink Tone Threshold:The threshold, or the sink value at which the sink tone starts, can be set
between -10 and -2000 ft/min (–0.1 and –9.9 m/sec) in Main Setup Menu/Basic
Settings/Sinktone Thres. The sink tone threshold can also be set with F1 (Nxt Fnc). Repeatedly
press F1 until “S. Thr –*.*” is shown in the Information Lines and use the arrow keys to
change the value to the desired setting. You can also toggle the sink tone off/on with F2.
Note: A low quiet random noise may be heard even if the speaker is set to 0%; this is a normal
effect of operation.
2.3 Digital Vario
The digital vario has a resolution of 20 ft/m (10 cm/s) and a very wide measuring range of
+/14,000 ft/min (+/-70 m/s). The digital vario can be set to function as an averager (also called
integrated vario), with an average period between 1 and 30 seconds. This is very useful in
determining the actual strength of a rough thermal.
3 Airspeed
The 5020 has an input for a vane wheel speed sensor. It shows the true air speed (TAS) and
begins to make correct measurements above 1 mph (1 km/h). The vane wheel sensor is also
well suited for determining the wind strength at take-off. In Main Setup Menu/Basic Settings/Spd
Corr./Vane you can calibrate the displayed speed from 70% to 150% (default is 100%).
Many paraglider pilots fly without a speed sensor. In this case we recommend displaying only
the GPS-Speed (ground speed). Firmware versions 1.12 and later provide mathematically
Flytec 5020 Technical Manual
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derived air speed when flying without the vane sensor. This value is found by a vector addition of
ground speed and the wind velocity. To get the wind strength and direction, you must fly a full
circle at regular intervals; the calculated airspeed will be available at that time.
3.1 Stall Alarm
The warning tone for stall alarm is a midrange tone with a fast interval and full volume. The
threshold speed and altitude for the stall alarm can be set under Main Setup Menu/Basic
Settings/Stallspeed. To turn off the stall alarm set the threshold speed to 0.
4 GPS Functions
The use of GPS receivers has become indispensable for navigation. A network of satellites circle
the Earth and it is possible to determine your position very precisely anywhere in the world by
simultaneously receiving signals from several of these satellites at the same time.
4.1 Assessment of Reception Quality
The 5020 integrated GPS Receiver can track up to 16 satellites at the same time. After the unit
is turned on it must receive at least 4 satellites to fix its initial position. Once acquired, only 3
satellites are necessary for further navigation (for 2D positioning). However, if you want to record
altitude in a flight record (3D positioning) then 4 satellites are required. For competition flights it
is necessary to have 3D positioning.
There is a satellite almanac table in the GPS receiver that keeps track of the path, place, and
time of all satellites with reference to the receiver. The almanac is continuously updated during
signal reception. However, if the signal to the almanac memory is disrupted completely or the
5020 is taken more than 125 miles from the last reception point, then the almanac has to be re-
established. In this case it can take ten minutes (or more) to determine the new position. When
the 5020 is turned off, power is still supplied to the almanac’s memory. The instrument will loose
the almanac if the batteries are removed from both battery banks.
If the receiver is turned off for only a short period of time (less than 2 hours), it should take less
than a minute to acquire satellites. Buildings, mountains or thick forest affect reception quality.
Therefore, when you first turn on the 5020 for the day, you should place the 5020 with the best
possible view of the sky, and place the antenna (under the 5020 label) pointing upwards. For the
same reason, when you attach the 5020 it should not have more than 45° deviation from a
horizontal position. Because the receiving strength of the satellite signal is only 1/1000 of mobile
radios, these radio receivers and other disruptive devices (like notebook computers) should be
kept as far away as possible from the Flytec 5020.
The arrowhead bar scale in the top right corner of the vario page shows the number of satellites
being received. Each filled-in arrow represents one satellite with good reception. The greater the
number of filled in arrowheads, the better the overall GPS reception.
Flytec 5020 Technical Manual
- 16 - © Flytec USA
4.2 Compass and Flight Direction
Unlike a normal magnetic compass, which is oriented to magnetic north, the GPS compass can
show direction only when you are moving. However, it has the advantage that it is not subject to
any grid deviation and does not show any deviation as a result of proximity to iron or magnetic
material. Its zero point always corresponds with true geographic north (0° or 360°).
The flight direction (track) is calculated by the GPS from your movements. If you remain
stationary then the course and compass needles are inoperative. The exact course (that is, the
direction in which you travel over ground) is always at the top of the compass, but can also be
read in the user-selectable Track field. When circling in a thermal the compass rose appears to
turn; in reality the needle does not move, the 5020 moves around the rose along with the aircraft.
4.3 Track and Bearing
As is the convention with GPS
receivers, the track is defined as the
route of the aircraft over ground.
Geographic true north is always 0° or
360° (east is 90°, south 180°, west
270°). Bearing is the direction to a
specific destination or waypoint from
the aircraft, expressed in the same
way. It can be displayed in a user field.
Note: A Tracklog is the result of
recording many different position
points during a flight.
4.4 Speed Over Ground
The GPS receiver fixes its position
once every second. Speed over the
ground is derived from the distance
and time between these positions. By
comparing the difference between
airspeed and groundspeed
conclusions about the wind’s influence
can be derived. Ground speed (Gnd Spd) may be displayed as a user field.
4.5 Glide Ratio (L/D Ratio)
By definition, the glide ratio is calculated by taking the horizontal distance traveled and dividing it
by the altitude lost. The following different types of glide ratio can be selected as a user fields:
Glide ratio through the air:
L/D air = TAS/Sink (True airspeed divided by sink)
Glide ratio over the ground:
L/D gnd = GS/Sink (Ground speed divided by sink)
Required glide ratio to destination:
L/D req = Distance to the waypoint divided by the altitude difference to the waypoint.
Flytec 5020 Technical Manual
- 17 - © Flytec USA
4.6 Head, Cross and Tail Winds — the Wind Component
During an XC flight or when calculating a final glide, the wind component (i.e. the difference
between ground speed and air speed) is very important. In most cases the wind does not blow
directly from the front or from behind. If the wind component, Spd-Diff in the user fields, is
positive, then you are flying with a tail wind and your glide ratio over the ground will improve. If it
is negative then you are flying with a head wind and your glide ratio will worsen. The Flytec 5020
takes the wind into consideration when calculating final glide. To learn how to find the correct
angle between your destination and the wind when a strong cross wind is present, please refer
to Section 7.9, “The Goto Function.”
4.7 Wind Direction and Speed
It is very important to know the wind direction and speed
when flying XC and before an out landing. The wind speed
(Wind Spd) can be selected as a user field. It is necessary
to fly one or two complete circles as steadily as possible in
order for the 5020 to determine the wind direction and
speed.
The instrument calculates the wind from the difference
between Airspeed and Groundspeed. Wind direction is
shown in the compass rose by a small windsock. During
the final landing approach, this symbol should always be
at the top of the compass rose (to the extent the landing
field will allow). Note: If the windsock covers one of the
compass cardinal directions (N, E, S, or W) the letter will
disappear.
4.8 Waypoints and Coordinates
A waypoint is any single point on the earth’s surface that you would like to go to. The Flytec
5020 can save up to 200 different waypoints. Each waypoint can have up to 16 characters, e.g.
“Quest Air.” To navigate to a waypoint you also need its coordinates. If you desire final glide
information the altitude of the waypoint must also be entered in the waypoint’s altitude field.
For entering coordinates the Flytec 5020 utilizes the most international and commonly used
geographical grid: WGS84 (World Geodetic System 1984). This reference system assumes that
latitude is measured from the equator (0º) to the North Pole (90º North) and to the South Pole
(90º South). Longitude is measured from the Greenwich meridian in London (0º). East is positive
(up to 180º). West is negative (up to -180º). UTM and Swiss Grid are also possible.
The Flytec 5020 can also interpret waypoints entered according to the convention of using 3
letters and 3 numbers. Example: LAB167 indicates a waypoint with the name LAB*** at an
altitude of 1670 meters MSL.
The following position formats can be set in Main Setup Menu/Basic Settings/Coordinate Format.
1) Degrees Decimal Minutes dd°mm.mmm
2) Degrees Minutes Seconds dd°mm’ss”
3) Decimal Degrees dd.ddddd
4) UTM
5) Swiss Grid
Wind direction
NW
Flytec 5020 Technical Manual
- 18 - © Flytec USA
Whenever possible the format dd°mm.mmm should be used because this format is the same
that GPS receivers use and will provide the highest degree of accuracy. Other formats can
cause rounding errors up to 15 meters.
4.8.1 Editing Waypoints
Waypoints can be managed in Main Setup Menu/Waypoints. Briefly
press Enter to view the list of logged waypoints in alphabetical order. If
the list contains more than 6 waypoints, a down arrow at the lower
right edge of the list indicates that additional pages follow. To advance
to the next page, press the key; waypoints 7 through 12 are now
shown. Continue to press the key to view remaining waypoints in
groupings of 6.
To select and edit an individual waypoint within a group use the or
keys and press Enter. The first letter of the waypoint name will
blink; you can now change the first letter of the name of the waypoint
by using the keys. There are numbers and letters, as well as a
set of special symbols, to choose from. With F1 you can switch
between capital and lower case letters, and numbers. Press the
arrow key to acknowledge the character and move forward to the next
position. A waypoint name can be up to 16 characters long. Once the
waypoint name has been changed (or left as-is), confirm the name by pressing Enter. The
blinking cursor will now advance to the waypoint’s altitude field and that value can be altered
with the keys. Press Enter to confirm any changes that you have made or accept the
existing value.
The blinking cursor will now advance to the degrees/minutes portion of the waypoint latitude.
The value can be changed with the keys; however, degrees and minutes are linked so you
must scroll through all 60 minutes to advance to the next degree. Hold the keys down to
change the values rapidly. Once the desired degrees/minutes are shown confirm by pressing
Enter. The cursor will now advance to the decimal minutes field and can be similarly set. Change
the value as necessary and confirm with Enter. The blinking cursor advances to the waypoint
longitude, which can be altered and confirmed in the same manner as the latitude.
4.8.2 Deleting Waypoints
To delete a waypoint, select it with keys from the waypoint list and press F2 (Del WP). To
be on the safe side the 5020 will ask for confirmation by showing, “Delete Waypoint?” Use the
keys to switch from “No” to “Yes”, and press Enter. The deletion process can be stopped by
Esc.
4.8.3 Inserting Waypoints
Within the Waypoint list press F1 (Ins WP) to add a new waypoint. Enter the waypoint name,
altitude, and position as described in 7.8.1 above. After you confirm all field entries with Enter,
the new waypoint will be inserted alphabetically in the waypoint list. The 5020 can store 200
waypoints.
Note: Newly entered waypoints can only be used after you have switched back to the normal
flight mode by briefly pressing F2. In addition, you cannot enter the new waypoints into an
existing route if it is active. If the route is active, first change into route selection mode by
pressing and holding Route, then pressing F2 (Can Rte) to deactivate the route.
Waypoints
=================
Flytec
Fiesch
Flims, Station
Cassons Grat
================⇓
Waypoint 2
Fiesch
Alti 1048 m
N 46’ 24.446
E 008’ 08.264
-----------------------------
Ins Del
WP WP
Flytec 5020 Technical Manual
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4.8.4 Current Coordinate Indicator
Provided the 5020 is receiving a GPS signal, you can view your actual position can in the unit’s
Information Lines by pressing Enter. After twenty seconds the display will automatically revert to
the previous content. This function is useful after landing to relay your location to a person
coming to retrieve you.
4.8.5 Distance to Waypoint
The horizontal distance to a chosen waypoint that you have input manually with the Goto
function, or automatically with the Route function, can be displayed in the Dist to WP user field.
For distances under 6.2 miles (10 km) the resolution is 0.01 miles (10 m). For distances greater
than 6.2 miles (10 km) but less than 62.1 miles (100 km) the resolution is 0.1 miles (0.1 km).
Distances greater than 62.1 miles are shown as integer values (i.e., no decimal). The distance to
a waypoint is always measured to the center of the waypoint cylinder and not to its
circumference. For further information please read Section 7.9, “The Goto Function.”
4.8.6 Saving the Current Position
(Not available prior to V1.11)
You may wish to save your current position as a waypoint. To do this press and hold F1 for 3
seconds. As confirmation you will hear a double beep; the current coordinates will be stored in
the memory as a waypoint. The 5020 uses the letter M (for marker) for the waypoint designation
along with the date and time.
Example: M.22.04 11:16:49 for 22 April 11 hours, 16 minutes, and 49 seconds (UTC). Of course
this waypoint name can be changed to a more meaningful name in the Waypoints menu.
4.9 The Goto Function
Press and hold the Goto key to switch the lower portion of the
Vario screen into the Goto mode. The two closest waypoints
are shown with their distance in miles (km) from your current
position. The closest waypoint will be highlighted on top. Press
the key to highlight the second closest waypoint; press the
key again to see the next two closest waypoints, and so
on. A waypoint can be set as the active Goto by highlighting it
and pressing Enter. To deactivate the Goto function press F2
(Can Wp.).
If you encounter a strong cross wind on the way to a
waypoint/goal, you can find the optimal angle between your
destination and the wind by carefully changing your direction
of flight against the wind until the directional pointer in the
center of the compass rose points directly upwards, as shown
in the example to the right. By doing this you can be sure that
your flight path over ground is a straight line to goal and
consequently the shortest one — and you will avoid the well-
known “pursuit curve.”
Your altitude above/below your best glide (Alt a. BG) to the active Goto can be shown in a user
selectable field. While you are climbing in a thermal, Alt a. BG will display 0 when you have
Flytec 5020 Technical Manual
- 20 - © Flytec USA
gained sufficient altitude to just be able to reach the waypoint/goal by flying at best glide speed.
Alt a. BG is based on the altitude entered in the altitude field for the active waypoint.
4.10 Flying Routes
A route is a sequence of waypoints. The waypoints used on a
route must first be entered into the 5020’s waypoint list. In
contrast to the Goto function where you must choose the next
waypoint from a long list by pressing and holding Goto, you
can advance or move back to a previous waypoint in a route
with the keys. This expedited route manipulation is
accessed with F1 (Nxt Fnc).
To select a route for flying, press and hold Route for a few
seconds; a list of the existing routes will appear in the lower
portion of the display. Use the keys to select the desired
route and then press Enter to make it active. To create,
change, or delete a route please read Section 7.11, “Routes:
Create — Delete — Alter.”
The 5020 can store up to twenty routes. The same waypoint
can be used more than once along a route, and the same
waypoint may occur on other routes as well. If a waypoint is
used in a route, it cannot be deleted from the waypoint list until the route is deleted. When there
is an active route it is possible to look up other, possibly closer, waypoints without leaving the
current active route, by using the Goto function.
Starting with firmware version 1.12 it
is possible to display the distance
around the remaining waypoints in a
route (Dist Gl), calculated from your
current position. Additionally, it is
possible to show the altitude above
goal (Alt a. Gl) around the remaining
waypoints in a route, calculated from
your current position. This calculation
takes the windspeed and direction
into account, which was previously
derived from flying smooth, full
circles. When calculating Alt a. Gl it is
assumed that you will fly on the courseline between the remaining waypoints, and that you will
fly at best glide speed. Even with these two assumptions Alt a. Gl is a very approximate value
because the instrument does not know the precise wind conditions along the balance of the
route and how you will fly on the way to goal. Nonetheless this can still be useful information.
Wind
Direction/
Strength
Start
WP1
WP2
Goal
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