32
Hangar 9 Jackal 50 ARF
34. Use the radio to cycle the gear a number of times,
checking that the length of the linkage is correct. Although
it is important the gear locks in both the up and down
positions, it is most critical it is fully locked when down or
it may collapse on the runway during takeoff or landing.
Also make sure the servo is not binding at either position,
as this will quickly drain the receiver battery. Take your
time to set the linkage perfectly. Once complete, tighten
the 2-56 nut against the retract actuator to prevent it from
changing position.
Nose Gear Installation -
Pneumatic Retract
Required Parts
Fuselage
Nose gear retract
Axle adapter
Steel axle
Nylon spacer
2-56 nut
Retract gear fuselage plate
Pull-pull fitting (2)
Retract servo
#6 x 12-inch sheet metal screw (4)
Nose wheel, 2
1
/
4
-inch (57mm)
11mm x 7mm x 48mm hardwood block (2)
1.6mm x 6mm sheet metal screw (6)
Pull-pull cable, 42-inch (1070mm
5/16-inch (8mm) copper crimp (4)
Required Tools and Adhesives
Phillips screwdriver: #1, #2 Drill
Drill bit: 3/32-inch (2.5mm) Pencil
Thin CA
Threadlock
Flat file
Light machine oil
Ruler
Crimping tool
Rotary tool with cutoff wheel Side cutter
30-minute epoxy
Felt-tipped pen
Mixing cup
Clamps
Mixing stick
Epoxy brush
Denatured alcohol
Needle nose pliers or hemostats
Important
: Before installing the nose gear retract, it
is recommended to use a fuel-proof paint or thinned
epoxy (mix 20% denatured alcohol to 80% epoxy)
to seal all the wood inside the opening for the nose
gear. This will protect the wood and extend the life of
your model.
1. Locate the items necessary to install the pneumatic
retract nose gear in the fuselage. You will also need the
fuselage for your model.
2. Use 30-minute epoxy to glue the two 11mm x 7mm x
48mm hardwood blocks to the landing gear rails. The wider
11mm measurement will match the width of the landing gear
rails in the fuselage. Slide the blocks forward on the rails
so they fit tightly against the back of the former. Use small
clamps to hold them in position until the epoxy fully cures.