A5M4_Instructs.pdf

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General Building Instructions
History
The Mitsubishi A5M was originally designated the Type 96 Carrier Based Fighter,
and first flew on the 4
th
of February, 1935. Code named the ‘Claude’ by the allies, it was
the first shipboard monoplane ever produced, and the most advanced naval fighter in the
world at it’s time of introduction. It soon was put to service against the Chinese in the
Sino-Japanese War. The ‘Claude’ was also in service at the beginning of the Second
World War, but was soon replaced by it’s direct descendant, the A6M ‘Zero’. At the
beginning of the Second World War, Allied intelligence also believed the ‘Claude’ to be
Japan’s principal naval fighter.
The A5M did see limited service during the war, mainly aboard escort and support
carriers, such as Ryujo. The A5M was also used as an advanced naval trainer. Most
remaining airframes were used in Kamikaze attacks in the closing months of the war.
Total production of the type was 1,094, which included trainer versions, and closed
cockpit variants, which were not favored by its’ pilots. This A5M4 version depicted here
was flown by pilot Tomatsu Yokoyama in November of 1938.
Specifications
Length
Wingspan
Height
Basic Empty Weight
Max Ramp Weight
Engine
Fuel Capacity
Armament
Performance
Max Speed
Max Range
Initial Climb Rate
Absolute Ceiling
24' 10"
36'1"
10'9"
2,681 lbs
3,694 lbs
(1) Kotobuki 41 9 Cylinder Radial, 710 HP (takeoff
rating) + 3 Blade all metal Prop
Internal-96 US Gallons (634 lbs) External-42 US
Gallons (277 lbs) in optional belly tank
(2) .303 Caliber Machine Guns, (800 rounds)
(4) 66 lb bombs
280 MPH
745 Miles
2,750 FPM from Sea Level
32,150 Feet
Building Instructions
COCKPIT
1.
2.
We will start by building the cockpit. Assemble the cockpit tub, CP1.
Cut out the panel face and remove the instrument dials. (White Areas) Once
complete, align & add the panel face to the instruments located on CP1.
Next add the seat base, CP2. Fold and assemble the pilot’s seat, CP3. Mount on
top of part CP2.
Use a tweezers to insert the rudder pedals, parts CP10.
Add the throttle quadrant, part CP7. Next add the throttle CP14, and the mixture
CP13 controls.
Add the radio box to the right cockpit tub wall, part CP8.
Construct the control stick, starting with the shaft, CP9A. Then add the base,
CP9C. Last add the handle, CP9B. Use a tweezers to insert the completed stick
into the cockpit tub.
Add the machine gun mountings to the panel. Parts CP5 (left) and CP6 (right).
Cap off the cockpit tub with part CP1A.
Add the headrest, CP4 to the area above the pilot’s seat. Set the completed
cockpit aside.
3.
4.
5.
6.
7.
8.
9.
10.
ENGINE
11.
Start the engine with W1A*. This part should be backed by �½ to 1mm card. The
other side should have W1B (unbacked) glued to it. This forms the firewall.
Add the engine former, W1C* to the front of W1A*.
Next the engine case E4, is to be added, around W1C*. Cap off the front with
part E3*.
12.
13.
14.
15.
Add the gearbox, E2, to the front of E3*. Then cap off the assembly with part E1*.
Next add the cylinders, parts E7. There will be seven to be added radial to the
blank spaces around part E4.
Next add the cowl inner case, E5. This part should wrap around the cylinders, with
the seam aligned to the bottom.
Last add the machine gun entrainments parts LM (left) and RM (right) to the top
outer sections cut out of part E5. Set the completed engine aside.
16.
17.
COWL
18.
Start by building the rear cowl. Begin with part F3. Note that the seam
does not
align to the bottom. The top of the seam will attach to part F1A on both sides. F3
will be mated at its rear to the cowl flaps, part F4.
Next put the engine assembly into the rear cowl so it fits snugly. Do not glue into
place, however. First add the inner rear cowling, part F7, so that the seam sits
aligned on the bottom. Once aligned, the engine, inner rear cowling and rear
cowling may be glued together.
Next add the front cowling. Carefully align and position part F2 to the front of F3.
Like before, the end seams of this part will join to F1A at the top of the cowling.
Next add the exhaust stacks, parts E7, to the ports at the lower rear of the cowl
assembly.
Last add F1 to the front of the cowl assembly. Unlike the inner sections, F1 will
align it’s seam to the bottom.
19.
20.
21.
22.
FUSELAGE
23.
Start by assembling the firewall mount. Part F6 will be mounted to the rear of part
F5 with it’s mating strips. Align and frame the front of this section with part W1D*.
Next add F8. Frame the area between F8 and F6 with former section W2*.
Add F9 to the rear of F8. Add former W3* to the rear of F9. Note that this
bulkhead must not overlap onto F9. If it does, it will create fit errors with the
cockpit assembly. Align and slide SP1* into the slots of F8.
SP1* and W3*
should sit flush and tight against one another.
Align and insert the cockpit assembly from the rear of F8. The front of the cockpit
tub should sit against W3*.
24.
25.
26.
27.
Assemble fuselage section F10. Frame the front with former W4*. This former
must
not
overlap or it will cause fit errors with the cockpit tub. Add former W5* to
the rear of F10. This former can and should overlap for joining with the next
fuselage section. Align and slide into place SP2* through the slots of F10.
Add the wing formers, LW1* & RW1* to the ends of SP1* & SP2*. These will be
used later for construction of the wings.
Add the next fuselage section, F11. The former W5* should overlap enough to
allow joining with F10. The rear of this section should be capped off with former
W5A*. As before, make sure it slightly overlaps to allow joining with the next
section.
Add the fuselage section, F12. It should join cleanly with F11, with former W5A*
between them.
Cap off the fuselage with fuselage section F13, and W6*. Align and insert the
empennage guide, W7*, into the slots of F13.
Add the top fuselage fairing. Start with F14. The top of the cockpit tub, CP1,
should tuck neatly into the front of F14.
Add the next fairing section, F15, to the rear of F14.
Add the next fairing section, F16, to the rear of F15.
Add the rudder to the rear F16. Use parts EM3 & EM4.
To complete the fuselage, align and add the completed cowling assembly to the
front of the completed fuselage. Be sure that W1D* aligns with the rear face of
W1B. Also make sure that there is equal space between the cowl outlet and the
fuselage all the way around. Also add the ADF aerial loop antenna, A1, to the top
of F14.
28.
29.
30.
31.
32.
33.
34.
35.
36.
WINGS & EMPENNAGE
37.
The basic wing building procedure is to construct the entire outer wing skin, and
then slide it into place on it’s respective frame. Start with the inner wing sections,
LW1 & RW1. Fold and assemble these, respectively.
Next assemble and add the outer wing sections, LW3 & RW3, respectively, and
add them to their inner wing sections from the inside, using the provided mating
strips.
38.

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