Owner manual

FIT THE FIXED LANDING GEAR
Skip this section if installing retracts.
Note: Even though the landing gear assembly for the
left wing is shown in the photographs, both landing
gear assemblies could be installed simultaneously.
1. Use 30-minute epoxy to glue a 3/4" x 1" x 1" [19
x 25 x 25mm] basswood main landing gear torque
block to one end of a 1/2" x 1" x 2-11/16" [12.7 x 25
x 68mm] grooved basswood main landing gear rail.
After the epoxy has hardened drill a #11 (or 3/16"
[4.8mm]) hole in the middle of the groove through the
rail and the block 1/2" [13mm] from the end. Bevel
the opening of the hole to accommodate the bend in
the wire, then test fit the left landing gear wire.
Refer to this photo for the following two steps.
2. Glue together two die-cut 1/16" [1.6mm] plywood
fixed landing gear plates. Note that the grain direction
of each plate runs in the opposite direction. Use 30-
minute epoxy to glue the plates to the rail, but use care
not to inadvertently glue in the wire gear.
3. Secure the gear with two nylon landing gear
straps and four #2 x 1/2" [13mm] screws. Drill 1/16"
[1.6mm] holes for the screws. Don’t forget to harden
the threads with a few drops of thin CA.
4. Install the assembly in the wing between the
landing gear rails, then drill six 7/64" [2.8mm] holes
through the landing gear plates and the rails in the
wing for the mounting screws. Remove the landing
gear from the wing and enlarge the holes in the
landing gear plate with a 9/64" [3.6mm] or 5/32"
[4mm] drill. Mount the landing gear assembly to the
wing with six #6 x 1/2" [13mm] screws.
FIT THE RETRACTABLE LANDING GEAR
Skip this section if installing fixed landing gear.
1. Remove the partial cutout in rib 3 to
accommodate the wheel.
2. Test fit the landing gear into the rail. If the fitting
for the air line on the side of the air cylinder prevents
fitting the retract, the cylinder may be rotated so the
fitting is facing at a downward angle.Then the retract
unit should fit between the rails. A small corner of the
aft rail will have to be trimmed to accommodate the
oleo strut.
3. Center the landing gear in the rails from side-to-
side. Mark the center of the four mounting holes on
the rail. Drill 7/64" [6.7mm] holes through the rails at
the marks for the mounting screws. Mount the retract
to the rail with the #6 x 1/2" [13mm] screws that
came with the retract.
4. Fit a piece of 3/16" [4.8mm] brass tubing into
the strut where the axle goes. Place a straightedge
on the wing parallel with the spar. Adjust the strut so
the tubing is parallel with the straightedge and
tighten the strut.
5. Cut the axle to the correct length and mount a
3" [75mm] wheel to the strut.
6. Retract the gear into the wing. Trim rib R3 as
necessary so the wheel will fully retract.
7. Remove the retract unit from the wing. Add
several drops of thin CA to the screw holes to harden
the threads.
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