14
VMAR CHALLENGER 40ARF TRAINER
TM
The Challenger has a tricycle gear configuration ("trike
gear") using a steerable nose wheel and main landing
gear. Trike gear is recommended in trainers and makes it
much easier to steer your model on the ground and to
control it during take off.
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PHASE 3 - INSTALLING THE
LANDING GEAR.
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STEP 3.1 - CHALLENGER -
MAIN LANDING GEAR ASSEMBLY.
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3.1.1
To assemble the main landing gear you will need
the following items from the Main Gear Parts Bag.
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2 Ultralight
treaded wheels
62 mm (2-7/16
in.) diameter
[W]
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4 Wheel
collars
[COL]
with set screws
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2 Pre-Bent
Main Landing
Gear Wires
[MG]
approx 275 mm (11 in.) long
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3.1.2
Locate both of the pre-bent main landing gear
wires
[MG]
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3.1.3
Place one of the wheel collars
[COL]
on the pre-
bent main landing gear wires.
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3.1.4
Place one of the ultralight treaded wheels
[W]
on
the pre-bent main landing gear wires.
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3.1.5
Install a second wheel collar
[COL]
on to the pre-
bent main landing gear wires. Leave enough of a gap to
allow the wheel to rotate freely.
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3.1.6
Apply liquid thread locker and securely tighten the
set screws in each wheel collar.
(Tip: file flats on the
axle where the wheel
collar set screws contact
the axle. The set screws will
stay tighter longer. Apply
liquid thread locker to the set
screws)
WHEEL [W]
WHEEL COLLER [COL]
SET SCREWS
PRE-BENT MAIN
LANDING GEAR
WIRE [MG]
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STEP 3.2 - CHALLENGER -
MAIN LANDING GEAR INSTALLATION.
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3.2.1
To install the main landing gear
you will need the fuselage
[FS]
, the
main landing gear assemblies from Step
3.1 and the following items from the
Main Gear Parts Bag.
The main landing gear must be assembled before it can
be installed. See Step 3.1 if you have not yet assembled
the main landing gear.
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4 Sheet metal screws
[MGMS]
approx 15 mm (5/8 in.)
long
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2 Landing gear straps
[MGRS]
, approx 9 mm x 21 mm
(3/8 x 7/8 in.) made of white
plastic with a hole at each end.
You will also need the following items that are not included
with your Challenger.
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Liquid thread locker
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Phillips screw driver
You will also need the following items that are not included
with your Challenger.
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Tape measure
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Phillips screw driver
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3.2.5
The slot has a hole at each end. Look carefully
and you will notice one hole is close to the back edge of
the slot and the other hole is close to the front edge of the
slot. These two holes and the slot will be used to install the
main landing gear assemblies that you built in Step 3.1
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3.2.4
Use a sharp blade in your hobby knife and
carefully remove the covering that obscures the slot in the
fuselage. Do not cut into the wood... just remove the
covering. If you inadvertently cut into the wood, seal the
cut line with CA glue.
MAIN GEAR
MOUNTING LOCATION
FRONT
VIEW OF BOTTOM OF FUSELAGE
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3.2.2
Turn the fuselage
[FS]
over and examine the
bottom of the fuselage carefully. Measure back about 285
mm (15 in.) from the front of the fuselage and locate four
small holes in the covering on the bottom of the fuselage.
There may also be a sticker on the bottom of the fuselage
just forward of the four holes. If the sticker is present it will
say "MAIN LANDING GEAR LOCATION".
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3.2.3
Using your fingers, feel for a slot underneath the
covering. The slot runs across the bottom of the fuselage
from side to side and lies between the four small holes.
