Deagostini Douglas DC3 User guide

Type
User guide
3
TM
Build
Douglas DC -3
TM
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Douglas DC -3
Build
Douglas DC -3
Build
3
Pack
Paints and
modelling tools
A comprehensive selection of modelling tools
and paints (in all the colours you will need to
complete your Douglas DC-3) is available from
the Model Space website.
www.model-space.com
Produced under license. PAN AM logos are trademarks of
Pan American World Airways, Inc.
Produced under license. Boeing, Douglas, Boeing Airplane Company, DC-3,
247, Douglas World Cruiser, and the distinctive Boeing logos, product markings
and trade dress are trademarks of The Boeing Company.
Published in the UK by De Agostini UK Ltd,
Battersea Studios 2, 82 Silverthorne Road,
London SW8 3HE
Published in the USA by De Agostini Publishing USA, Inc.,
915 Broadway, Suite 609,
New York, NY 10010.
Packaged by Continuo Creative, 39-41 North Road,
London N7 9DP
p55-62, images from the Giorgio Apostolo Collection
All rights reserved © 2015
Items may vary from those shown.
Not suitable for children under the age of 14.
This product is not a toy and is not designed or intended for use in play.
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The Dawn of a New Age
The DST and the birth of the DC-3
After the technical and commercial
success of the DC-2, Douglas™
Aircraft concentrated on developing
a new project. This is how the DST,
and its ‘twin’ the DC-3™, came
into being.
ASSEMBLY GUIDE
Passenger Cabin (Part 1)
Assembly of the left side of the
passenger cabin, complete with
windows and external cladding.
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The dawn of a new era
The Douglas DST,
commissioned from
Douglas by American
Airlines, was a significant
improvement on the
DC-2 in terms of both
comfort and performance.
American Airlines
christened its DSTs
‘Flagship Skysleepers’.
The Dawn of a New Age
The DST and the birth of the DC-3
The birth of the DC-3 was, to a large
extent, the result of the technical and
commercial success of the DC-2.
The new aircraft was commissioned
from the Douglas Aircraft Co. by C. R.
Smith and William Littlewood of American
Airlines; originally, it was to be a sleeper
aircraft, based on the DC-2 model, which
was intended to replace the Curtiss
T-32 ‘Condor’, then used by the airline.
American Airlines’ specifications included,
among other things, the solution to some
of the problems which had emerged
during the first operational flights of the
DC-2. In particular, these related to curing
the alleged weakness of the undercarriage
and making the control surfaces easier to
handle. But it was the rearrangement of
the passenger cabin to make room for
14 sleepers (16 in the prototype) which
required the most radical changes.
December 1935 saw the first flight of the
prototype Douglas DST (Douglas Sleeper
Transport), which was delivered to
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American Airlines in 1936 and to United
Airlines in 1937.
DST and DC-3: Siamese twins
The DST made its first commercial flight
on 25 June 1936 on the Chicago-Newark
route, while on 18 September it made its
first flight on the New York-Los Angeles
route, which it carried out in 17½ hours
(with three stops), compared to the 23½
hours and nine stops of the ‘Condor’. The
decision of American Airlines to name its
15 DST aircraft ‘Flagship Skysleepers’,
together with an advertising campaign
entirely centred on flying comfort and the
quality of service, clearly showed that the
A reduced version of American Airlines’
flight timetable, updated in April 1935.
At the start of the 1930s, AA covered a
network of 72 destinations, concentrated
mainly in the Midwest, Northeast and
Southwest of the United States. Under the
energetic management of C. R. Smith and
thanks to the introduction of the DC-3, the
company was the first to make a profit on
passenger transport alone at a time when the
competition still relied on government mail
transport contracts for their survival.
Sleeper berths on board an American Airlines’ DST. The lower berth was formed by linking two seats facing
each other; the upper one, when not used, was folded up against the cabin wall. The bottom berths were lit by
two windows and the upper ones by a shallower window (here covered by a curtain), designed, according to
the company, to reduce the sense of claustrophobia.
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The dawn of a new era
company had decided to make the DST
the flagship of its fleet. But from the very
start, the development of the DST was only
one part of the contract between the airline
company and Douglas. The other part
consisted of developing the structure of
the new aircraft into a ‘traditional’ transport
plane with a capacity of 21 passengers,
which would be designated the DC-3.
The plan of a DC-3 (top)
compared with that of a DST.
Note that in the DST there
are two toilets (instead of
one) and the kitchen is in the
front part of the fuselage.
By changing these, and
making other modifications
to the distribution of interior
space, the DC-3 increased
the number of passengers it
could carry to 21, as well
as significantly increasing
the space available for mail
and baggage.
In spite of Douglas’s intention of
minimising the differences between the
two models, the DST/DC-3 only shared 10
per cent of the DC-2’s components. The
fuselage was longer and wider, the plane
was heavier, and the wingspan and wing
area were larger. The shape of the wings
was also altered, with the adoption of the
NACA 2215 airfoil instead of the NACA
2206, and the whole aircraft underwent
substantial modifications, including the tail
assembly, which was significantly altered
to increase its efficiency. In effect, the
aircraft was completely redesigned. In the
DST version, in addition to the rectangular
windows (seven on the left side and eight
on the right, each 35 x 68cm), there were
now extra windows above them (three on
57
the left and four on the right, each 13
x 68cm), which provided light for the
upper sleeping berths. At first sight,
these provide the most noticeable feature
that distinguish the DST from the other
versions of the aircraft.
American Airlines’ contribution was
fundamental to the development of
the DST/DC-3. On the one hand, the
Douglas company did not really believe
in the commercial future of sleeper
aircraft (in spite of the fact that, after
the order placed by American Airlines,
further orders for the DST were placed
by Eastern Airlines, United Airlines and
TWA); on the other hand, it wanted to
maximise the financial returns on a
project which had proved much more
complex than expected, and which had
made serious demands on the production
capacity of its plant at Clover Field, Santa
Monica, at a time when it was also trying
to satisfy orders for the DC-2.
As a result, it was no coincidence that
until it went out of production, the airlines
themselves saw the DST as completely
interchangeable with the DC-3, and some
A view of the left side
of a DC-3A. Compared
to the DC-2, the most
obvious differences are
the tail assembly and
the connecting ‘fillet’
between that and the
fuselage. Other important
modifications involved the
landing gear, which was
strengthened and operated
by a new type of hydraulic
pump. On the side can
be seen one of the many
versions of the Douglas
logo, with the globe and
three aircraft in flight.
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The dawn of a new era
cooled engines with nine radial cylinders,
each engine developing 1,000bhp.
Subsequently, it was fitted with two P & W
SB3G engines of the same power, and in
the DST-A version, with two Cyclone G 102
engines. As in the DC-1 and DC-2 (and,
as would be the case with the DC-3 too),
the engines were mounted in a nacelle
that also incorporated the recess for the
retractable undercarriage. Furthermore, the
engines could be removed
en bloc
from the
aircraft, together with the main connections
and accessories, thus making maintenance
work much quicker. This particular feature
was used again in the DC-3, which in its
first configuration was powered by the
same Cyclone G2 engines as the DST; in
the course of time these were replaced by
the versions G102, G103, G102A, G2E,
G1OA and G202A, and in the case of
the DC-3A, by the various versions of the
P & W R-1830 ‘Twin Wasp’.
The pilot’s cabin, cockpit and controls
also followed the same layout as those
Above, a detail of the
front landing gear of a
DC-3. Enormous efforts
were made to increase
the sturdiness of the
landing gear and to make
its operation smoother.
The front wheels of
the DC-3 touched the
ground first, and only
after this would a further
reduction in speed result
in the little rear wheel
touching the ground.
(including American Airlines themselves)
used it regularly for daily flights, while
waiting for its replacement to be available.
Continual evolution
In its first version, the DST was powered
by two Wright Cyclone R-1820 G2 air-
Arthur Emmons Raymond (1899-1999) was a central figure in the
development of the DST/DC-3. Raymond was born in Boston and
grew up in Pasadena. He was taken on by Douglas in May 1925, and
a short time later he joined the design department. In the course of
his career, he became first Chief Engineer (1934), and then Vice-
President of the company with responsibility for design (1939), an
office he held until 1960, the year he retired. For almost 35 years,
Raymond was involved in all the major projects of the Douglas
Aircraft Company, from the DC-2 to the DC-8, and he played a key
role in planning the company’s activities during the Second World
War. Between 1960 and 1969, Raymond collaborated with NASA
on the design of the Gemini and Apollo missions. Raymond also
played a vital part in the creation in 1946 of RAND (Research ANd
Development), which developed over the years into the well-known
think tank of international politics.
The Designer: Arthur E. Raymond
The instrument panel of the DST consisted of
115 items, including switches, gauges and other
control instruments.
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of the DC-1 and DC-2 (with several
improvements), and, apart from the
windscreen tending to let in water in poor
weather conditions, they were a big step
forward compared to the usual standards.
The control surfaces were connected by
cables to the pilot’s and co-pilot’s joystick,
pedals and control column. The ailerons,
elevators and tabs could also be controlled
from the cabin. The control surfaces were
operated by an autopilot system, which,
during the flight, maintained the direction
and pitch of the aircraft through a dedicated
hydraulic system. With the thrust levers of
the central control column, the pilot could
control the rotational speed of the propellers
for each engine, as well as the power
developed and the air/fuel ratio of the fuel
mixture, the latter according to three values
set by the manufacturer (Maximum Rich,
Auto Rich and Auto Lean).
A US Army Air Service DC-3 (C-47 Skytrain). It was
this aircraft which contributed to a large extent to
the commercial success of the Douglas Company
during the Second World War. This side view clearly
shows the front landing gear, only partly retracted
into the engine nacelles, the fixed rear landing
wheel and the six windows on the side, instead of
the seven of the civilian version.
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The dawn of a new era
The Douglas Aircraft Company
The Douglas Aircraft Co. was founded in
1921 in Santa Monica, California, out of the
ashes of the Davis-Douglas Company, by
Donald W. Douglas Sr (1892-1981), then
chief engineer at the Glenn Martin Co.
and former Chief Civilian Engineer in the
aeronautical section of the US Army Signal
Corps. In June of that year, the Cloudster
of the Davis-Douglas Co. had attempted
(unsuccessfully) to complete the first
transcontinental flight without a stopover,
but the company owed its success to
the creation of the Douglas World Cruiser
in 1923 as a project initiated by the US
Army Air Service. In the following year,
the DWC was the first aircraft to fly round
the world, enabling Douglas to create the
slogan ‘First Around the World – First
the World Around’ and the logo with the
aircraft and globe, characteristics found in
various forms of the company’s logo since
then. The achievement paved the way
for a fruitful collaboration with the armed
forces. By 1926, the production capacity
Logo of the Douglas Aircraft Co. On the globe are the silhouettes of the three DWC aircraft which successfully
flew round the world in 1924. The scroll displays the company’s motto ‘First Around the World’, a slogan often
reproduced on the fuselages of its aircraft.
of Douglas had reached 100 planes a year,
thanks to the construction and subsequent
extension of the factory at Clover Field.
However, the major thrust behind the
development of Douglas came with its
commercial aircraft in the 1930s (the DC-2
and, above all, the DC-3), and from orders
following the outbreak of the Second
World War. Between 1942 and 1945, the
company built about 30,000 aircraft, under
licence or within larger consortia. Besides
Already Chief Engineer at
Glenn Martin Co. and former
Chief Civilian Engineer of the
aeronautical section of the US
Army Signal Corps, Donald
W. Douglas Sr. (1892-1981)
founded the Douglas Aircraft
Company in 1921 and
remained its President until
1957, when he handed the
position over to his son Donald
W. Douglas Jr. while remaining
President of the Board
of Directors.
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the military version of the DC-3 (the C-47,
known as the Skytrain in the United States
and the Dakota in Great Britain), these
included the B-17 Flying Fortress heavy
bomber (built in association with Boeing™
and the Vega Aircraft Co.), the multi-role
DB-7 (A-20, called the Havoc in the United
States and the Boston in Great Britain), the
SBD Dauntless dive bomber and the A-26
Invader light bomber. After the war, the
company continued along this dual track
with the production of civilian aeroplanes
such as the DC-6 (which entered service
in 1947), the DC-7 (entry into service in
1953), the DC-8 (which entered service in
1959) and the DC-9 (which entered service
in 1965), alongside that of military aircraft
such as the A-1 Skyraider (which entered
service in 1947), the A-3 Skywarrior
(which entered service in March 1956) and
the A-4 Skyhawk (which entered service
in October 1956).
Employees at the Douglas
plant working on an aircraft
engine. During the Second
World War, the number
of people working for the
company rose to 160,000,
many of them women.
But in the years that
followed, the numbers
were drastically reduced
and several plants were
closed, including those in
Oklahoma City, Tulsa
and Chicago.
After the war, the Douglas Company
played a key role in the introduction of the
jet engine, first in a military context with the
F3D Skyknight, later designated the F-10
(first flight: 1948, entry into service: 1951),
and the F4D Skyray, later the F-6 Skyray
(first flight: 1951, entry into service: 1956),
then in the civilian context with the DC-
8, developed in response to the challenge
launched by Boeing with its B-707. In the
1950s, the Douglas Company – managed
since 1957 by the founder’s son, Donald W.
Douglas Jr. – also became involved in the
field of missiles, securing the contracts for
the Skybolt and Thor military programmes,
as well as for the construction of the
S-IVB, the third stage of NASAs Saturn
rocket. It was the experience it developed
in this field which led Douglas to merge
on 28 April 1967 with the McDonnell
Aircraft Corporation of Saint Louis to form
McDonnell-Douglas, the corporate name
under which the company continued to
operate (with varying fortunes) until it was
finally absorbed by Boeing in 1997.
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Assembly Guide
N.B. A few elements supplied in each pack may vary slightly from those in the step-by-step
photographs. In particular, the layout of the components on the sheets of laser-cut plywood parts
may not be completely identical – but once you have separated the individual pieces from the
sheets, each one will be exactly the same as the parts shown being assembled here.
Take the laser-cut plywood pieces for the left side of the
passenger cabin. Using a craft knife, remove the pieces one at
a time as they are required in the instructions. Sand the edges
with fine sandpaper to make them smooth.
Start by assembling the left side of the cabin. Fit and glue
piece 3F to pieces 3A and 3B as shown, checking with a set
square that the angles are exactly 90°.
Fit and glue piece 3G onto the assembly constructed in the
previous step (see photograph).
21 3
64
Passenger Cabin (Part 1)
Continue in the same way, fitting and gluing pieces 3I, 3J, 3L,
3M and 3O in turn.
Turn the whole assembly round and position it as shown.
Fit and glue pieces 3C, 3D and 3E in their positions.
Also fit and glue pieces 3H, 3K and 3N. You will now have
finished the first part of the structure.
90°
3F
3G
3B
3A 3A
3B
5
3M
3J
3O
3L
3I 3E 3H 3K 3N
3D
3C
See the back cover for a checklist of your parts for this pack.
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Assembly Guide
Now move on to assembling the second part of the
passenger cabin. Fit and glue pieces 4A and 4B into piece
4F, as shown. Remember to check with a set square that
the interior angles are 90°.
Fit and glue piece 4G into the relevant notches
in pieces 4A and 4B.
In the same way, fit and glue pieces 4I, 4J, 4L, 4M,
4O, 4P and 4R.
87 9
11
Turn the assembly round and position it as shown, then insert
and glue pieces 4C, 4D and 4E in turn. Let the glue dry and
then add pieces 4H, 4K, 4N and 4Q. You have now completed
the second part of the left side of the cabin.
From the 2mm diameter bamboo dowel supplied with
Pack 2, cut four pegs, each 3mm long. Fit and then glue them
into the holes in the front side and rear side of the
cabin framework.
Using the two dowel pegs inserted in Step 11 as a location
guide, glue the two pieces together. Use two clamps to hold
the framework together until the glue has set.
4F
4G
4R
4O
4P 4M
4J
4L 4I
4B 4B
4A
4A
10
4D
4C
4E
4H 4K 4N
4Q
3mm 12
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Assembly Guide
When the glue has set, fit and glue piece A1 in place. Fit and glue piece A2 in the same way. Position and glue the stringers in the notches along the
framework (see photograph). Touch up the notches with a
small file if necessary: the stringers must be flush with the
profile of the fuselage.
14 15
181716
Also fit and glue the stringers to the lower part of the
assembly, but do not fit them in the roughly square areas
indicated by the red dotted lines.
Also glue stringers to the inside of the assembly; they will be
used to support the interior lining of the cabin.
Apply wood filler and leave it to dry. Then paint the assembly
green. Leave it to dry.
13
A1 A2
Passenger Cabin
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Assembly Guide
Take the baggage rack for the left side of the cabin, piece
CBAGG1. Remove any imperfections with a fine file and
abrasive paper, then apply primer and leave it to dry.
Paint the baggage rack beige, preferably using an airbrush, and
leave it to dry.
With a brush, paint the underside of the baggage rack
Mediterranean Blue. This is the same colour as that used for
the seat backs assembled in Pack 2.
20 21
Paint one side of one stringer Mediterranean Blue and leave it
to dry. Glue it to the lower part of the baggage rack as shown
and cut off any excess at each end. Paint the side of another
stringer in the same way.
Finish the lower side of the baggage rack by painting the seven
spots black and gluing them into the positions shown.
Fit the baggage rack to the assembly from Step 18, making
sure that it is flush with the upper side, then fix it in position with
cyanoacrylate glue applied from the rear side.
19
22 23 24
CBAGG1
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Assembly Guide
Prepare a window frame by assembling two pieces F1 and two
pieces F2. To assemble it correctly, make sure that the part
codes on the two pieces F1 are both facing in the same direction,
because the pieces are not symmetrical (check the photograph).
Lightly sand the frame, then fill and sand the characters ‘F1’ on
the inside. Apply wood filler if necessary and paint the whole
Mediterranean Blue. Leave it to dry.
Take the ‘Interior lining template’ sheet of self-adhesive
paper and the ‘Plastic sheet’ and stick the sheet of paper
to the plastic.
2625 27
302928
Using a sharp craft knife, cut the sheet of plastic following the
printed outlines, so you end up with the two pieces shown in
the lower photograph. Carefully peel off the adhesive paper.
Apply primer to both pieces G1 and G2, and leave them
to dry. Refer to the photograph for the side to colour
piece G2 and, when it is dry, paint it the same colour
(beige) as used for the baggage rack.
Using a pencil, draw a faint line two millimetres from the lower
edge of piece G2 in the position shown.
F1
F2 F1
F2
G1
G2
G2
G2
G1
2mm
Passenger Cabin
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Assembly Guide
Paint the area below the line drawn on piece G2 in Step 30
Mediterranean Blue, as well as the area below the windows.
Also paint the whole of piece G1 and leave it to dry.
WITHOUT GLUE, fit the frame prepared in Step 26 in the
position indicated on the fuselage. Arrange it so that the
outer edge is flush with rib 4I.
Use the position of the frame inserted in the previous
step as the reference point for fitting piece G2. Fix it with
cyanoacrylate glue to the two ribs adjacent to the frame, but
be careful not to glue the frame.
3231 33
363534
Using your fingers, press piece G2 against the ribs to follow the
curve of the structure. Then fix it in place by applying adhesive
to the area indicated within the red circles, working from the
centre towards the ends.
Piece G2 must remain in contact with the curvature of the
ribs and also line up with the lower profile of the baggage
rack CBAGG1.
This is how piece G2 should look when assembled and viewed
from the outside of the structure. Remove the window frame
that you used as a reference point.
G1
4I G2
G2
G2
CBAGG1
G2
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Assembly Guide
In the same way as Steps 33 and 34, fit and glue piece G1
below piece G2.
Paint a stringer Mediterrranean Blue and glue it into the
area of the join between the baggage rack and piece G2
as shown. Remove any irregularities there may be on both
sides of the stringer.
Paint one side of the two stringers with aluminium colour. Glue
one above and one below the windows, as shown. Cut off any
excess at each end.
37
424140
Turn the assembly over and position it as shown. From the
back, use Mediterranean Blue to paint round all the window
openings of piece G2 as shown.
Assemble the other six frames following the instructions of
Steps 25 and 26. Then cut seven rectangles, 25 x 20mm,
from the sheet of transparent acetate.
Glue a piece of acetate to the convex side of the seven
frames (using PVA glue, because cyanoacrylate would
affect the acetate). Remove the excess acetate with a
sharp craft knife.
G2
G1
G2
38 39
Passenger Cabin
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Assembly Guide
Fit the seven window frames, centring them exactly on the
openings in piece G2, if necessary, touch them up with fine
abrasive paper. The acetates must be flush with the ribs
(see inset). Fix the frames carefully with cyanoacrylate glue.
Take the ‘Paper for curtains’ and cut out seven pieces, 24mm
long by 12mm high.
Using a ruler, make a series of parallel marks spaced 1.5mm
from each other, pressing the paper with the blade of the craft
knife to make an impression without cutting it.
43 45
484746
Using the lines impressed with the craft knife in the previous
step, fold the paper to give it concertina folds, as shown.
Apply a very small amount of PVA glue to each of the folds
and pinch them together them with a clothes peg.
In this way, when the glue has dried you will have made a
curtain ready to be put in position. Repeat the operation to
prepare the remaining six curtains
G2
44
12mm
24mm
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Assembly Guide
With two dots of adhesive on the aluminium-coloured
stringers which you fitted above and below the windows
(see Step 39), glue the seven curtains onto one side of each
window as shown. Check the position with the inset photo.
Take the die-cast elements BA1G, C2G, C1G and C3G
shown in the detail and carefully remove any imperfections
from them. Be careful not to damage the rivets! The pieces will
be painted later, so look after them carefully in the meantime.
Clean piece BA1G with alcohol or acetone and fit it into the
position shown. Do not glue it yet.
5049 51
545352
Take a spare strip of aluminium and use it to check that the
die-cast piece BA1G fits in place, and will lie flush with the
surrounding structure when it is clad. Then, apply adhesive
to piece BA1G and stick it in place.
Clean piece C1G and fit it carefully to the underneath of the
assembly. Do not glue it.
As in Step 52, use a piece of aluminium to check that piece
C1G will lie flush with the rear covering, before fixing it to the
inside of the structure with glue.
C1G
BA1G
C3G
C1G
C1G
C1G
C2G
BA1G
BA1G
Passenger Cabin
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Assembly Guide
Following the same procedure as before (Steps 51 to 54),
fit and glue piece C2G in position.
Finally, fit and glue piece C3G next to the previous one. Take the die-cut aluminium piece for covering the windows
A3L1 and rub one side of it lightly with fine abrasive paper.
5655 57
605958
Put the piece in position with the non-sanded side facing
outwards, and make marks in line with the vertical ribs. The
process of positioning the aluminium is exactly the same as
that used in Pack 2 for covering the left side.
Transfer the marks made in the previous step onto the inside
of the piece.
With a ruler and a toothed wheel, trace the vertical lines of the
rivets, joining the marks made in Step 59. Make four horizontal
lines of rivets: two of them 0.5mm from the upper and lower
edges of the piece and two at the same distance above and
below the windows.
C2G
C3G
A3L1
C3G
C3G
C2G
A3L1
BEFORE
AFTER
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Deagostini Douglas DC3 User guide

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User guide

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