Construction Manual
www.oldschoolmodels.com
Page 21
• Trim along it’s flat edge. You’ll want to trim away the excess
plastic and leave a smooth lip, roughly 3/16” wide around the
it’s perimeter.
• Place it on the fuselage and see if will rest flat. If not, remove
it and lightly sand the bottom lip until it's flat. Not all canopies
are exactly identical, so a bit of trial and error is needed to get a
good fit.
• If you’re going to add a pilot figure (not included), now is the
time to test-fit, then glue it in place.
• Give the canopy a quick wash in warm, soapy water.
• If you're going to tint or paint the canopy, do this on the inside
now and allow it to try.
• Use a bit of canopy glue to attach the canopy. So it doesn't
move while the glue cures, hold it in place with a bit of low-tack
masking tape.
Optional rudder skid
Included in the hardware
package is a 3" length
of wire that can be bent
to use as a rudder skid.
With the ventral portion
of the rudder, it's quite
possible to drag this
section on the runway from time to time. So, if you'd like to add
this, note the sample drawing on the fuselage plan sheet. Bend
something similar, then drill a couple of holes in the bottom of the
rudder, spaced so the "legs" of this skid can be inserted. Secure
with a bit of glue and you're all set.
This completes the assembly of the Kaos. Now you’ll need to
adjust the control throws and check for balance.
Recommended C.G. setting:
An important part of preparing the aircraft for flight is properly
balancing the model. This is especially important because of the
various motor/battery combinations that can be used.
CAUTION! DO NOT SKIP THIS STEP!
The recommended Center of Gravity (CG) location for the Kaos is
4-1/8" from the leading edge of the wing, as measured at where
the wing contacts the fuselage, and you’ll see this marked on the
fuselage plan with this symbol.
If necessary, move the battery, receiver,
and/or add weight to either the nose
or the tail until the correct balance is
achieved. Stick-on weights are available
at your local hobby store and work well
for this purpose.
Recommended Control Throws:
The amount of control throw should be adjusted as closely as
possible using mechanical means, rather than making large
changes electronically at the radio.
By moving the position of the clevis at the control horn toward
the outermost hole, you will decrease the amount of control throw
of the control surface. Moving it toward the control surface will
increase the amount of throw. Moving the pushrod wire at the
servo arm will have the opposite effect: Moving it closer to center
will decrease throw, and away from center will increase throw. Work
with a combination of the two to achieve something relatively
close to these throws that are good for everyday sport flying. If
competing in pattern, you'll probably want to dial these down a bit
to give a smoother appearance to your maneuvers.
Aileron 3/4” up/down (35% expo)
Elevator 5/8” up/down (25% expo)
Rudder 1-1/2” left/right (20% expo)
(
Expert tip:
Once the control throws have been set, cut a few pieces of
medium silicone fuel tubing (or heat shrink tubing) to go around each
of the clevises. This will keep them from opening during flight.)
Preflight:
Charge both the transmitter and receiver pack for your airplane.
Use the recommended charger supplied with your particular radio
system, following the instructions provided with the radio. In most
cases, the radio should be charged the night before going out
flying.
Check the radio installation and make sure all the control
surfaces are moving correctly (i.e. the correct direction and with
the recommended throws). Test run the engine and make sure it
transitions smoothly from idle to full throttle and back. Also ensure
the engine is tuned according to the manufacturer’s instructions,
and it will run consistently and constantly at full throttle when
adjusted.
Check all the control horns, servo horns and clevises to make
sure they are secure and in good condition. Replace any items
that would be considered questionable. Failure of any of these
components in flight would mean the loss of your aircraft.
Range check your radio before flying
Before each flying session, range check your radio. This is
accomplished by turning on your transmitter with the antenna
collapsed. Turn on the radio in your airplane, but do not attach the
arming switch.
With your airplane on the ground, you should be able to walk 30
paces away from your airplane and still have complete control of
all functions.
If not, don’t attempt to fly! Have your radio equipment checked
out by the manufacturer.
