Setup
☐
Inspect the wings for any warps that may
have worked their way in when covering or
while the model was in storage, and remove
prior to flight.
DO NOT ATTEMPT FLIGHT IF
THE WINGS ARE WARPED.
Lack of aileron
control on this model will make contending
with a warped wing very difficult.
FIX THE
WARP.
☐
Center the rudder, then set the direction, rate
of travel, and dampening (expo).
The Rudder servo should be controlled by the
Aileron (roll axis) channel of your radio, as
Rudder on this model also controls the roll of
the aircraft. Rudder should follow aileron
stick travel, i.e. moving the Aileron stick to the
right should move the Rudder to the right of
the aircraft.
The Elevator will be controlled by the Elevator
(pitch axis) channel of your radio. Moving the
elevator stick back (towards the pilot) should
move the elevator up, moving it forward
should move the elevator down.
BUZZ 400™ is designed to be a very docile
flyer, therefore the flight controls are set up for
fairly minimal throws. With the pushrods
connected per the instructions in this
Assembly Manual, the the control throws
should be as follows:
Rudder Travel (rudder is VERY effective)
+/- 15 degrees 30% expo
Elevator Travel
+/- 15 degrees 30% expo
Note: The above Exponential settings apply
only to computer radios.
Pre-Flight
Have and experienced pilot assist you with pre-
flighting your new model. Just like having
someone proof read something you’ve written,
having a second
fresh
set of eyes to inspect your
final product is often helpful at avoiding disaster.
While not an exhaustive pre-flight check these are
some of the major items that you should consider
using when developing your own pre-flight check
list. Get in the habit of always pre-flighting your
models before each and every flight.
☐
Weight and Balance
- Check the
BUZZ
400’s
™ balance. The model should balance
1/8 inch behind the spar. Use a permanent
marker or trim tape to mark the underside of
the
left
and
right
wing half at the CG
measurement as given above.
☐
Use your
right
and
left
hand index fingers and
suspend the model from below, between the
marked CG measurements. Site from profile
of aircraft against horizon. If the
upper
edge
of the fuselage side along F11/F14 appears to
hang level with horizon line, then the
BUZZ
400™
is properly balanced to fly. Move
equipment and or battery within fuselage to
obtain proper balance.
☐
Check Weather
- The
BUZZ 400’s™
first
flight should be outdoors and in
zero
wind
conditions. The
BUZZ 400™
is capable of
flying in winds up to 5-8 mph so long as the
pilot is capable.
☐
Inspect airframe
for warps and obvious signs
of wear or damage. Do not fly a damaged or
warped model.
☐
Inspect control surfaces
for center, proper
direction of travel, rate of throw, secure
pushrod connections, hinges, and receiver/
servo mounting hardware.
☐
Check wing attach points
for damage and/
or wear. Inspect rubber bands, that they are
installed correctly and in good condition to
adequately retain wing.
☐
Inspect battery for full charge.
Never begin
a flight with a partially charged battery.
☐
Clear prop!
Before applying power to the
model, clear and keep clear of the prop arc.
Build Instructions April 15, 2014
!
(c) 2011 Stevens AeroModel all rights reserved.
!
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