Tower Hobbies Ryan STA Airplane EP ARF User manual

Brand: Tower Hobbies

Model: Ryan STA Airplane EP ARF

Category: Toys & accessories

Type: User manual

READ THROUGH THIS MANUAL

BEFORE STARTING CONSTRUCTION.

IT CONTAINS IMPORTANT INSTRUCTIONS

AND WARNINGS CONCERNING THE

ASSEMBLY AND USE OF THIS MODEL.

WEIGHT

60–65 oz [1700 –1842g]

WING LOADING

20.3 –22.1 oz/ft

[61.9– 67.4 g/dm

]

RADIO

4-Channel required

Tower

Hobbies

guarantees

this kit to be

free from defects

in both material and

workmanship at the

date of purchase. This

warranty does not cover any

component parts damaged by

use or modication. In no case shall

Tower Hobbies’ liability exceed the

original cost of the purchased kit. Further,

Tower Hobbies reserves the right to change

or modify this warranty without notice.

In that Tower Hobbies has no control over the nal

assembly or material used for nal assembly, no

liability shall be assumed nor accepted for any damage

resulting from the use by the user of the nal user-assembled

product. By the act of using the user-assembled product, the

user accepts all resulting liability.

If the buyer is not prepared to accept the liability associated with the

use of this product, the buyer is advised to return this kit immediately in

new and unused condition to the place of purchase.

To make a warranty claim send the defective part or item to Hobby Services at

the address below:

Hobby Services • 3002 N. Apollo Dr. Suite 1 • Champaign IL 61822 • USA

Include a letter stating your name, return shipping address, as much contact information as

possible (daytime telephone number, fax number, e-mail address), a detailed description of

the problem and a photocopy of the purchase receipt. Upon receipt of the package the problem

will be evaluated as quickly as possible.

WARRANTY

A subsidiary of Hobbico, Inc.

TOWER HOBBIES

Champaign, Illinois

(217) 398-8970 ext. 6

WINGSPAN

53 in [1346mm]

WING AREA

424 sq in [27.35 dm

]

LENGTH

40 in [1016 mm]

airsupport@hobbico.com

INSTRUCTION

MANUAL

As a new owner of an unmanned aircraft system (UAS), you

are responsible for the operation of this vehicle and the safety

of those around you. Please contact your local authorities

to  nd out the latest rules and regulations.

In the United States, please visit:

knowbeforeyou y.org faa.gov/uas

AMA

We urge you to join the AMA (Academy of Model Aeronautics)

and a local R/C club. The AMA is the governing body of model

aviation and membership is required to  y at AMA clubs.

Though joining the AMA provides many bene ts, one of the

primary reasons to join is liability protection. Coverage is not

limited to  ying at contests or on the club  eld. It even applies

to  ying at public demonstrations and air shows. Failure

to comply with the Safety Code may endanger insurance

coverage. Additionally, training programs and instructors are

available at AMA club sites to help you get started the right

way. There are over 2,500 AMA chartered clubs across the

country. Contact the AMA at the address or toll-free phone

number below.

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN 47302-9252

Tele. (800) 435-9262

Fax (765) 741-0057

Or via the Internet at: www.modelaircraft.org

IMPORTANT: Two of the most important things you can do

to preserve the radio controlled aircraft hobby are to avoid

 ying near full-scale aircraft and avoid  ying near or over

groups of people.

SAFETY PRECAUTIONS

Protect Your Model, Yourself & Others…

Follow These Important Safety Precautions

1. Your Ryan STA EP ARF should not be considered a toy, but

rather a sophisticated, working model that functions very

much like a full-size airplane. Because of its performance

capabilities, this model, if not assembled and operated

correctly, could possibly cause injury to yourself or

spectators and damage to property.

2. You must assemble the model according to the instructions.

Do not alter or modify the model, as doing so may result in

an unsafe or un yable model. In a few cases the instructions

may differ slightly from the photos. In those instances the

written instructions should be considered as correct.

3. You must take time to build straight, true and strong.

4. You must use an R/C radio system that is in  rst-class

condition.

5. You must correctly install all R/C and other components

so that the model operates correctly on the ground and in

the air.

6. You must check the operation of the model before every

 ight to insure that all equipment is operating and that the

model has remained structurally sound. Be sure to check

clevises or other connectors often and replace them if they

show any signs of wear or fatigue.

7. If you are not an experienced pilot or have not  own this

type of model before, we recommend that you get the

assistance of an experienced pilot in your R/C club for

your  rst  ights. If you’re not a member of a club, your

local hobby shop has information about clubs in your area

whose membership includes experienced pilots.

8. While this ARF has been  ight tested to exceed normal

use, if a motor larger than the one recommended is used,

TABLE OF CONTENTS

AMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 2

REQUIRED ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Radio Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Battery and Charger . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Adhesives and Building Supplies . . . . . . . . . . . . . . . . 3

Optional Supplies and Tools . . . . . . . . . . . . . . . . . . . . 3

CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . 4

KIT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

WING ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Join the Wing Panels . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Install the Landing Gear. . . . . . . . . . . . . . . . . . . . . . . . 8

ASSEMBLE THE FUSELAGE. . . . . . . . . . . . . . . . . . . . . 12

Rudder & Elevator Servo Installation. . . . . . . . . . . . . 14

Install the Motor and ESC . . . . . . . . . . . . . . . . . . . . . 16

Finish Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Apply the Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

GET THE MODEL READY TO FLY. . . . . . . . . . . . . . . . . 19

Check the Control Directions . . . . . . . . . . . . . . . . . . 19

Set the Control Throws . . . . . . . . . . . . . . . . . . . . . . . 19

Balance the Model Laterally . . . . . . . . . . . . . . . . . . . 20

Balance the Model (C.G.). . . . . . . . . . . . . . . . . . . . . . 20

PREFLIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Identify Your Model . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Charge the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . 21

Ground Check and Range Check . . . . . . . . . . . . . . . 21

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . 21

FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Takeoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Flight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Landing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

the modeler is responsible for taking steps to reinforce

the high stress points and/or substituting hardware more

suitable for the increased stress.

9. WARNING: The cowl and wheel pants included in this kit

are made of  berglass, the  bers of which may cause eye,

skin and respiratory tract irritation. Never blow into a part

to remove  berglass dust, as the dust will blow back into

your eyes. Always wear safety goggles, a particle mask and

rubber gloves when grinding, drilling and sanding  berglass

parts. Vacuum the parts and the work area thoroughly after

working with  berglass parts.

We, as the ARF manufacturer, provide you with a top quality,

thoroughly tested plane and instructions, but ultimately

the quality and  yability of your  nished model depends

on how you build it; therefore, we cannot in any way

guarantee the performance of your completed model,

and no representations are expressed or implied as to the

performance or safety of your completed model.

REMEMBER: Take your time and follow the instructions

to end up with a well-built model that is straight and true.

REQUIRED ITEMS

Radio Components

A transmitter and receiver with 4-channels is required. The

Tactic TTX650 6-channel or Futaba 6J 6-channel radio system

are great low-cost radio systems perfect for the Ryan STA

EP ARF.

❍ (1) Transmitter Futaba 6J 6-channel S-FHSS (FUTK6000)

or Tactic TTX650 6-channel SLT (TACJ2650)

❍ (1) FUTL7627 Futaba R617FS 7-Channel FASST

Receiver

❍ (4) Servos Futaba S3150 Slim Digital Servo (FUTM0303)

or Hitec HS-81 Standard Mini Servo (HRCM3402)

❍ (2) Futaba 9” (229mm) Servo Extension (FUTM3910)

or Tactic 12” (305mm) Servo Extension (TACM2130)

❍ (1) Y-Harness FUTM4135 or TACM2751

❍ (1) Motor RimFire .32 (42-50-800) (GPMG4700)

❍ (1) Speed Control Castle Creations Phoenix Edge Lite

75 (CSEM1200)

❍ (1) 4mm Female Connector (3) (GPMM3115)

❍ (1) Male Star Connector (HCAM4010)

❍ (1) 1” x 6” Velcro (for addition battery packs) (GPMQ4480)

Propellers

❍ 13x8E Propeller (APCQ3080)

❍ 14x8.5 Propeller (APCQ4011)

Battery and Charger

A 3S 3200mAh – 3600 mAh LiPo battery is required to power

the Ryan STA EP ARF.

❍ Great Planes ElectriFly LiPo 3S 11.1V 3200mAh 25C

Star Plug (GPMP0871)

❍ FlightPower LiPo FP50 3S 11.1V 3600 mAh 50C Star

Plug (FPWP5363)

Most modelers may already have a suitable LiPo charger,

but for those that do not, the Duratrax Onyx 235 AC/DC

Advanced Peak Charger (DTXP4235) is one of the chargers

recommended. The Onyx charger is perfect for 3S batteries

used with the Ryan STA EP ARF and may be powered either

by an external DC power source (such as a 12V battery), or

a 110V AC outlet. The Onyx also has an adjustable charge

rate to charge your batteries in as little as a half-hour or

less (depending on the condition of your batteries and the

manufacturer’s speci ed charge rate). The Onyx can also

charge large batteries and batteries other than LiPo. So it is a

versatile charger you can grow into. The 235 also has an LCD

digital display screen, so you can see how much capacity

it took to recharge the battery (required for monitoring the

condition of your batteries and calculating how long your

plane can  y).

Adhesives and Building Supplies

❍ Tower Hobbies 6-minute Epoxy (TOWR3806)

❍ Tower Hobbies 30-minute Epoxy (TOWR3810)

❍ Mixing Sticks (50, GPMR8055)

❍ Mixing Cups (GPMR8056)

❍ Epoxy Brushes (GPMR8060)

❍ Tower Hobbies Build-It CA Thin Glue (TOWR3800)

❍ Denatured Alcohol (for epoxy clean-up)

❍ Masking Tape

❍ #64 Rubber Bands (HCAQ2020)

❍ 1/16" [1.5mm], 5/64" [2mm], 3/32" [2.5mm] drill bits

❍ Drill

❍ Phillips head screwdriver

❍ Wire Cutters

❍ Pliers

❍ Stick-on segmented weights (GPMQ4485)

❍ Medium T-pins (HCAR5150)

❍ CG Machine (GPMR2400)

❍ Paper Towels

❍ #1 Hobby Knife (RMXR6903)

❍ #11 Blades (5-pack, RMXR6930)

Covering tools

❍ Top Flite MonoKote Sealing Iron (TOPR2100)

❍ Top Flite Hot Sock Iron Cover (TOPR2175)

❍ Top Flite MonoKote Trim Seal Iron (TOPR2200)

❍ Top Flite MonoKote Heat Gun (TOPR2000)

❍ Coverite 21

Century Sealing Iron (COVR2700)

❍ Coverite 21

Century Cover Sock (COVR2702)

❍ Coverite 21

Century Trim Sealing Iron (COVR2750)

Optional Supplies and Tools

Here is a list of optional tools mentioned in the manual that

will help you build the Ryan STA EP ARF.

❍ CA Applicator Tips (HCAR3780)

❍ CA Debonder (GPMR6039)

❍ Robart Super Stand II (ROBP1402)

❍ Servo Horn Drill (HCAR0698)

❍ AccuThrow De ection Gauge (GPMR2405)

❍ Precision Magnetic Prop Balancer (TOPQ5700)

ORDERING REPLACEMENT PARTS

Replacement parts are available from Tower Hobbies for your

Ryan STA EP ARF. Our order assistance representatives are

ready to answer your questions or to place your order. Call

us at (800) 637-6050.

Order No. Description

Wing

Fuselage

Tail Surfaces

Cowl

Hatch

Landing Gear Set

Plastic Parts Set

Tail Wheel Assembly

Decals

TOWA5015

TOWA5016

TOWA5017

TOWA5018

TOWA5019

TOWA5020

TOWA5021

TOWA5022

TOWA5023

Order No. Description

Belly Pan

Wheel Pants

Spinner

Wing Bolts (2)

TOWA5024

TOWA5025

TOWA5026

TOWA4077

KIT INSPECTION

If any parts are missing or damaged, consult Tower Hobbies

Order Assistance. (See phone numbers below.)

Note: All parts are one per kit unless otherwise stated.

Toll Free Order Assistance . . . . .800 637-6050

Fax Ordering . . . . . . . . . . . . . . . .217 398-7721

E-mail: airsupport@towerhobbies.com

CONTENTS

1. Cowl

2. Fuselage

3. Belly Pan

4. Plywood Wing

Joiners (2)

5. Right Wing Half

6. Left Wing Half

7. Fin

8. Rudder

9. Left Landing Gear

Cover Top

10. Left Wheel Pant

11. Right Landing Gear

Cover Top

12. Right Wheel Pant

13. Left Landing Gear Wire

14. Right Landing

Gear Wire

15. Main Wheels (2)

16. Tail Gear Wire

17. Tail Wheel

18. Wind Screen

19. Head Rest

20. Spinner

21. Horizontal Stabilizer

22. Left Elevator

23. Right Elevator

24. Elevator Joiner Wire

1314

22 23

PREPARATION

Use a covering iron set to about 300° F with a covering sock

to go over the model tightening the covering where necessary.

NOTE: This covering material requires less heat than you

may be used to. Excessive heat will cause the covering to pull

away from the seams or may even cause the parts to bend.

WING ASSEMBLY

Let’s start with the right wing.

❏

1. Pull on the ailerons to check that the CA hinges are

securely glued. If needed, apply a couple drops of thin CA

and check again.

❏

2. Follow the instructions included with your servos to

install the rubber grommets and metal eyelets.

❏

3. Install a servo lead extension (not included). Secure the

connection with tape or shrink tubing (not included).

❏

4. Center the aileron servo.

a. Connect the servo to the receiver.

b. Switch on the transmitter and temporarily connect

the ESC and motor battery or a receiver battery to

the receiver.

c. Center the aileron trim on the transmitter.

d. Install a servo arm so that one of the arms is

perpendicular to the centerline of the servo, as shown.

Remove the unused arms.

e. Unplug the motor or receiver battery and switch off

the transmitter.

❏

5. Center the aileron servo arm in the aileron hatch opening.

Use 6-minute epoxy to glue the two hardwood aileron servo

mounting blocks to the hatch.

❏

6. Place a piece of thin cardboard or paper folded over

several times between the servo and the aileron hatch. Drill

1/16" [1.5mm] holes for the servo mounting screws and install

the screws.

❏

7. Remove the servo mounting screws and servo and

apply a drop of thin CA in each hole to harden the threads

in the wood blocks.

❏

8. After the CA has cured, reinstall the aileron servo

and screws.

❏

9. Tie the string from inside the wing to the end of the

aileron servo wire. Wrapping a piece of masking tape around

the end of the servo wire and the string will help when pulling

the servo wire through the wing.

❏

10. Pull the servo wire through the wing and route the wire

out of the hole in the top of the wing.

❏

11. Mount the aileron servo hatch to the wing with four

2x10mm sheet metal screws and 2mm  at washers. After

installing the screws, remove the screws and hatch. Then,

harden the screw holes with thin CA. After the CA cures,

reinstall the screws and hatch.

❏

12. Thread a nylon clevis 20 turns onto the 2-56 x 4-3/8"

[110 mm] metal pushrod. Slide a silicone clevis retainer over

the clevis.

❏

13. Attach the clevis in the middle hole of the nylon

control horn.

❏

14. Position the control horn on the aileron so that the

pushrod is aligned with the aileron servo arm and the holes

in the control horn are aligned with the aileron hinge line.

Mark the two control horn mounting holes.

❏

15. Drill 1/16" [1.5mm] holes at the marks. Do not drill

completely through the wing.

❏

16. Mount the control horn to the aileron with two 2x10mm

sheet metal screws.

❏

17. Remove the screws and control horn and harden the

screw holes with thin CA. Once the CA has cured, reinstall

the control horn.

❏

18. Switch on the transmitter and receiver. Make sure the

aileron servo arm and aileron are centered. Mark the pushrod

where it crosses the outer hole of the aileron servo arm.

❏

19. Make a 90 degree bend at the mark. Trim off the end

of the pushrod ¼" [6.5mm] from the bend.

❏

20. Insert the pushrod and secure it with a nylon Faslink.

Slide the silicone clevis retainer over the clevis.

❏

21. Use 6-minute epoxy to glue the nylon wing dowel in

the leading edge of the wing.

Return to step 1 and install the aileron servo in the left wing.

Join the Wing Panels

❏

1. Use 6-minute epoxy to glue the two plywood wing

joiners together.

❏

2. Without glue, insert the plywood wing joiner in one wing

half and test  t the wing halves together to check the  t. Make

sure both wing halves  t together at the root without any

gaps. If needed, slightly sand the wing joiner for the best  t.

❏

3. Gather everything needed to glue the two wing halves

together including 30-minute epoxy, mixing sticks, mixing

cup, epoxy brush, rubberbands, masking tape, 12" [305mm]

long wire or small diameter dowel, denatured alcohol, paper

towels and the two ¼-20 wing bolts from the parts bag.

❏

4. Mix 2 oz. [59.1cc] of 30-minute epoxy. Working quickly,

pour a generous amount into the joiner pocket of one wing

half. Use the wire or dowel to thoroughly distribute the epoxy,

coating all surfaces inside the joiner pocket. Coat the root rib

and one half of the wing joiner. Insert the wing joiner in the

wing. Coat the joiner pocket in the other wing half and the

other end of the wing joiner. Join the wing halves together.

Use the rubberbands to hold the trailing edges of the wing

together using the wing bolts and leading edge dowels.

Stand the wing up on end and use paper towels dampened

with denatured alcohol to remove the excess epoxy that

squeezes out. Use masking tape to hold the wing halves in

alignment if necessary.

❏

5. After the epoxy cures, remove the rubberbands and

masking tape.

Install the Landing Gear

❏

1. Trim the covering from over the slots for the right main

landing gear.

❏

2. Insert the main landing gear wire into the slots. Make

sure the wire is completely seated in the slots.

❏

3. Position the nylon  at straps over the landing gear wire

and drill 1/16" [1.5mm] pilot holes in the hardwood rails. Don’t

drill through the top of the wing.

❏

4. Secure the  at straps to the wing with 2x10mm sheet

metal screws and 2mm  at washers. Remove the screws

and harden the threads in the wood with thin CA. Reinstall

the screws.

❏

5. Look at the upper landing gear covers from the front

to determine the left and right covers.

❏

6. Temporarily slide the upper gear cover over the main

landing gear.

❏

7. Slide the right wheel pant over the right landing gear.

Slide the wheel pant down and position it so that the landing

gear is as far forward as possible. Then, rotate the wheel

pants into position.

❏

8. Slide the upper gear cover over the wheel pant and slide

the wheel pant down so that the axle is exposed.

❏

9. Apply a drop of thread locker to a 3mm set screw. Install

the set screw in a 4mm wheel collar. Slide the wheel collar

on the axle and tighten the set screw.

❏

10. Slide the main wheel on the axle and secure it with a

second 4mm wheel collar and 3mm set screw.

❏

11. Position the wheel pant so that the wheel collars are

inside the pant and the wheel is centered. Center the upper

gear cover.

❏

12. Mark and trim the upper gear cover to clear the

screw heads.

❏

13. Drill 1/16" [1.5mm] pilot holes through the front and

back of the upper gear cover and into the hard wood gear

rails. Secure the upper gear cover to the wing with 2x10mm

sheet metal screws. As before, use thin CA to harden the

threads in the wood rails.

❏

14. Position a nylon strap in the recess and mark the

hole locations.

❏

15. Drill a 5/64" [2mm] hole through the wheel pants at

the marks, perpendicular to the recess.

❏

16. Secure the wheel pants to the landing gear with the

nylon strap, 2x10mm machine screw, 2mm  at washer and

2mm nut. Apply a drop of thread locker to the threads of the

screw before installing the 2mm nut. Do not over-tighten the

screws, crushing the  berglass wheel pant.

17. Return to step 1 and install the left main landing gear

and wheel pants.

ASSEMBLE THE FUSELAGE

❏

1. Install the wing on the fuselage and secure it with the

10- 24 x 2" [51mm] nylon wing bolts.

❏

2. Slide the horizontal stabilizer into the fuselage. Insert

the vertical  n to position the horizontal stabilizer.

❏

3. Check that the horizontal stabilizer is parallel with the

wing. If it is not, lightly sand the stabilizer slot until it is parallel.

❏

4. IMPORTANT: Insert the elevator joiner wire in the

stabilizer slot. Then, use 30-minute epoxy to glue the stabilizer

in the fuselage. Use the vertical  n to temporarily position

the stabilizer. Wipe off any excess epoxy with a paper towel

and denatured alcohol.

❏

5. Use epoxy to glue the  n in. Make sure it is perpendicular

to the horizontal stabilizer.

❏

6. Insert a T-pin into the center of six CA hinges.

❏

7. Insert the hinges into the trailing edge of the horizontal

stabilizer, up to the T-pin.

❏

8. Test  t the elevators to the horizontal stabilizer.

❏

9. Remove the elevators and clean the elevator joiner wire

with denatured alcohol. Apply 6-minute epoxy in the joiner

wire holes in the elevators and reinstall the elevators on the

stabilizer. Remove the T-pins and apply 5 drops of thin CA

to both sides of each CA hinge.

❏

10. Apply a dab of grease or oil to prevent epoxy

from adhering.

❏

11. Insert the tail gear wire in the aft end of the fuselage.

Use the T-pin method to temporarily insert the three CA

hinges in the  n. Test  t the rudder on the  n.

❏

12. Remove the rudder and note the position of the nylon

tail gear bearing in the fuselage. Glue the tail gear bearing

in the fuselage with 6-minute epoxy.

❏

13. Once the epoxy cures, glue the rudder to the  n using

the same method used to attach the elevators.

❏

14. Insert the rudder control horn in the slot on the left

side of the rudder. Mark the control horn at the joint between

the control horn and the rudder.

❏

15. Use sandpaper to sand off the paint below the line.

❏

16. Glue the rudder control horn in the rudder using

6-minute epoxy.

❏

17. Slide the tail wheel on the tail gear axle. Apply a drop

of thread-locker to a 3mm set screw. Thread the set screw

into a 2mm wheel collar and install it on the tail gear.

Rudder & Elevator Servo Installation

❏

1. Install the grommets on the rudder and elevator servos.

❏

2. Connect the rudder and elevator servos to the receiver.

Switch on the transmitter and receiver. Center the rudder and

elevator trims. Install and position the servo arms as shown.

Trim off the excess arms.

❏

3. Insert the 2-56 x 24" [610mm] metal pushrods in the

rudder and elevator pushrod tubes. Position the rudder and

elevator servos so that the pushrods align with the servo arm.

❏

4. Secure the servos in the servo tray using the screws

provided with the servos. Use thin CA to harden the threads

in the plywood servo tray.

❏

5. Use adhesive backed hook and loop material to

attach the receiver to the bottom of the servo/battery

tray. Route the receiver antennas following the radio

manufacturer’s instructions.

❏

6. Trim off the end of one of the nylon clevises as shown.

❏

7. Thread the nylon clevis 20 turns onto one of the 24"

[610mm] metal pushrods. Slide a clevis retainer onto the clevis.

❏

8. Insert the pushrod into the rudder pushrod tube. Attach

the clevis to the rudder control horn and slide the clevis

retainer over the clevis.

❏

9. Switch on the transmitter and receiver. Center the

rudder and mark the rudder pushrod where it crosses the

rudder servo arm.

❏

10. Make an L-bend at the mark, trim off the excess pushrod

and attach the pushrod to the rudder servo with a Faslink.

❏

11. Thread the last nylon clevis, 20 turns onto the second

24" [610mm] metal pushrods. Slide a clevis retainer onto

the clevis.

❏

12. Insert the pushrod into the elevator pushrod tube.

Attach a nylon control horn to the clevis as shown.

❏

13. Position the control horn on the elevator so that the

holes in the control horn are aligned with the elevator hinge

line. Also make sure the control horn is positioned over the

elevator joiner wire inside the elevator. Mark the two control

horn mounting holes.

❏

14. Drill 3/32" [2.5mm] holes through the elevator at

the marks.

❏

15. Attach the control horn to the elevator with two 2x12mm

machine screws and a nylon control horn back plate.

❏

16. With the transmitter and receiver switched on, position

the elevator servo arm so that it is 90 degrees to the elevator

pushrod and mark the pushrod where it crosses the servo arm.

❏

17. Make an L-bend at the mark, install the servo arm and

Faslink, and then cut the excess pushrod. Notice that the

pushrod is installed from the top to allow the servo arm to

rotate without binding.

Install the Motor and ESC

❏

1. Install the RimFire .32 motor to the front of the motor box

with four 2.5 x 12mm machine screws, 2.5mm lock washers

and 2.5mm  at washers. Apply a drop of thread-locker to

the threads of the machine screws before installing.

❏

2. Cut and attach a piece of adhesive backed hook and

loop material to the bottom of the ESC. Attach the opposite

piece to the bottom of the motor box.

❏

3. Make a hook and loop strap by overlapping a strip of

hook material with loop material by 1" [25mm].

❏

4. Secure the ESC to the bottom of the motor box with

the hook and loop strap. Trim off the excess strap.

❏

5. Connect the 3 motor wires to the ESC motor wires. Plug

the ESC into the receiver.

❏

6. With the propeller not installed, switch on the transmitter

and position the throttle stick in the low position. Connect the

motor battery to the ESC. Arm the ESC if required following

the instructions included with the ESC. As the throttle stick is

advanced, the motor should start to rotate counterclockwise

when viewed from the front. If the motor rotates in the wrong

direction, switch two of the three motor wires and recheck the

motor rotation. If the motor goes to full power with the throttle

stick in the low position, the throttle will need to be reversed

on the transmitter.

❏

7. Rotate the motor to position the prop adapter as shown.

❏

8. Slide the cowl over the motor. Insert the plywood tab at

the lower back of the cowl into the slot at the bottom of the

fuselage. Position the tab at the upper back of the cowl over

the slot in the top of the motor box and push the cowl down.

IMPORTANT: Do Not install the propeller and spinner until

after the control throws have been checked.

Finish Assembly

❏

1. Center the headrest behind the cockpit. Mark the outline

of the head rest on the turtledeck.

❏

2. Use a T-pin to pierce holes through the covering just

inside the outline of the headrest. This will strengthen the

glue bond between the headrest and turtledeck.

❏

3. Wipe off the outline on the turtledeck. Lightly sand the

bottom of the  ange on the head rest and clean it off with

denatured alcohol. Glue the headrest on the turtledeck with

Formula 560 canopy glue or thin CA.

❏

4. Install the intrument panel decal. Use canopy glue to glue

the wind screen in front of the cockpit. We do not recommend

CA. It may fog the wind screen.

❏

5. Bolt the wing on the fuselage. Install the belly pan using

the same procedure used to install the headrest.

❏

6. Cut and attach two pieces of the rough adhesive backed

hook and loop material to the battery tray. Attach a strip of

the soft adhesive backed hook and loop material to the back

of the motor battery.

❏

7. Make a hook and loop strap by overlapping a strip of

hook material with loop material by 1" [25mm].

❏

8. Insert the strap through the battery tray. Position the

motor battery on the tray, trimming the strap as necessary

to secure the motor battery to the battery tray.

Apply the Decals

❏

1. The majority of the decals are die-cut from the factory.

❏

2. Be certain the model is clean and free from oily

 ngerprints and dust. Prepare a dishpan or small bucket

with a mixture of liquid soap and warm water – ½ teaspoon

of soap per gallon of water. Submerse one of the decals in

the solution and peel off the paper backing. NOTE: Even

though the decals have a “sticky-back” and are not the water

transfer type, submersing them in soap and water allows

accurate positioning and reduces air bubbles underneath.

❏

3. Position decal on the model where desired. Holding the

decal down, use a paper towel to wipe most of the water away.

❏

4. Use a piece of soft balsa or something similar to

squeegee the remaining water from under the decal.

GET THE MODEL READY TO FLY

Check the Control Directions

DO NOT install the propeller until instructed to.

❏

1. Switch on the transmitter and connect the  ight battery

to the ESC.

❏

2. Center the control surfaces.

FULL THROTTLE

RUDDER

MOVES RIGHT

ELEVATOR MOVES DOWN

RIGHT AILERON MOVES UP

LEFT AILERON MOVES DOWN

❏

3. Make certain that the control surfaces and throttle

respond in the correct direction as shown in the diagram.

If any of the controls respond in the wrong direction, use

the servo reversing in the transmitter to reverse the servos

connected to those controls. Be certain the control surfaces

have remained centered. Adjust if necessary.

Set the Control Throws

❏

1. Hold a ruler against the widest part of the control surface

and measure the high rate throw  rst.

Pushrod Farther Out

LESS

THROW

Pushrod Closer In

THROW

MORE THROW

Pushrod Closer In

LESS THROW

❏

2. If needed, adjust the location of the pushrod on the

servo arm or on the control horn  rst. Then, use the endpoint

adjustment in your transmitter to  ne tune the throws.

❏

3. Measure and set the low rate throws using the dual rates

on the transmitter. Next, measure and set the high and low

rate throws for the rest of the control surfaces the same way.

If your radio does not have dual rates, we recommend setting

the throws at the high rate settings.

These are the recommended control surface throws:

ELEVATOR

HIGH RATE LOW RATE

5/8"

[16 mm]

12°

5/8"

[16 mm]

12°

Down

7/16"

[11mm]

8°

7/16"

[11mm]

8°

Down

15/16"

[24mm]

31°

15/16"

[24mm]

31°

Down

5/8"

[16 mm]

20°

5/8"

[16 mm]

20°

Down

1-1/8"

[28mm]

20°

Right

1-1/8"

[28mm]

20°

Left

7/8"

[22mm]

16°

Right

7/8"

[22mm]

16°

Left

RUDDERAILERONS

IMPORTANT: With the propeller removed and the control

throws set, set the fail safe on the transmitter. We recommend

checking the fail safe by switching off the transmitter with

the motor battery connected to the ESC. The motor must

not come on when the transmitter is switched off. Unplug

the motor battery from the ESC.

❏

4. If the RimFire 32 is installed, use a 5/16" [8mm] drill bit

to enlarge the center hole in the spinner backplate. Slide

the spinner back plate onto the prop drive, followed by

the propeller and secure them with the 8mm prop washer

supplied with the Ryan and the prop nut. Attach the spinner

cone to the spinner back plate with the two 2.5 x 10mm sheet

metal screws. Note: The propeller opening in the spinner

cone may need to be enlarged slightly so that the cone does

not rub on the propeller.

❏

5. If installing a pilot (not included) now is the time to install it.

Balance the Model Laterally

❏

1. With the wing level, have an assistant help you lift the

model by the propeller shaft and the bottom of the fuse under

the TE of the  n. Do this several times.

❏

2. If one wing always drops when you lift the model, it

means that side is heavy. Balance the airplane by adding

weight to the other wing tip. An airplane that has been

laterally balanced will track better in loops and other

maneuvers.

Balance the Model (C.G.)

DO NOT OVERLOOK THIS IMPORTANT PROCEDURE.

A model that is not properly balanced may be unstable and

possibly un yable.

60mm

67mm

2-3/8"

2-5/8"

❏

1. Mark the C.G location on the top of the wing, between

2-3/8" [60mm] to 2-5/8" [67mm] from the wing’s leading edge.

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Tower Hobbies Ryan STA Airplane EP ARF User manual

Brand: Tower Hobbies

Model: Ryan STA Airplane EP ARF

Category: Toys & accessories

Type: User manual

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Tower Hobbies Ryan STA Airplane EP ARF User manual

Tower Hobbies Ryan STA Airplane EP ARF User manual

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