SIG SBACH XA-41 EP ARF, Инструкция по сборке, Страница: 13 / 16

visual clues of an impending stall. When put into a dive, the
neutrally-balanced plane will not self-recover; it will continue
on the path until the pilot gives some stick input. Same is true
for climbs.
CONTROL SURFACE TRAVEL
The following control surface data has been flight tested
with the Sbach XA-41. However these numbers are only
recommended as a starting point. Your flying style may dictate
changes. Always measure the throws from the widest part
front to back of the control surface.
LOW RATES
Elevator 5/8" up 30%-40% expo
5/8" down
Ailerons 1/2" up 30%-40% expo
1/2" down
Rudder 2-3/4" right 40%-50% expo
2-3/4" left
HIGH RATES
Elevator 1-5/8" up 45%-60% expo
1-5/8" down
Ailerons 1" up 45%-60% expo
1" down
Rudder 4" right 50-70%% expo
4" left
High Rate Throws
High rate control throws are only meant for extreme aerobatics
- not for normal flying. You should be competent and
comfortable flying your Sbach XA-41 with normal control
throws before attempting high rates.
Exponential: You will find lots of opinions about the proper
amount of exponential travel to use on each control surface in
both low and high rate settings. The best aerobatic pilots in the
world agree that you will want more expo at high rates than at
low rates. After test flights adjust your settings as needed to
obtain the control feel you want. Consult your radio manual
to find out how to adjust the exponential settings of your
transmitter.
FLYING
When it comes to test flying a new model, we always advise
modelers to choose a calm day with little or no wind. These
conditions allow you to better evaluate and more accurately
adjust the trim requirements for your airplane. As we’ve
mentioned before, a good running, reliable motor is a must for
the ultimate success of your airplane. Take the time to solve
any power system problems before you try to fly.
Always make it part of your pre-flight routine to check each
control on the airplane, making sure the surfaces are moving
in the correct directions. Also check each control linkage to be
sure they are secure and that nothing is loose. With all the
controls checked, make a range check with your radio system,
making sure everything is working perfectly.
For take-off, the airplane should be lined-up with the center of
the field with the nose pointed directly into the wind. Hold a
little up elevator and smoothly advance the throttle. As the
Sbach begins moving forward, use the rudder as needed to
keep the air- plane going straight. At takeoff speed, use a
slight amount of up elevator to lift off, using ailerons to keep the
wings level. Climb to a reasonable altitude before making any
trim changes.
The Sbach is a fully capable aerobatic plane. Start with the
plane on low rates to get a feel for how it handles. It does not
take a lot of control to get the Sbach to loop and roll. Make
sure your first maneuvers are done at and altitude that you can
recover from until you are comfortable with how the plane
performs. We also recommend that you test a few stalls to get
used to how slow you can fly the Sbach before loosing lift and
how it recovers. We found that with a proper CG that the stall
was mild and generally straightforward. The Sbach is also
capable of 3D flight so once your comfortable with the plane at
normal flying speed flip the rates to high and try out it’s post
stall flight in harriers, hovers, snaps, and spins.
We have found that with the recommended setup and a 3000
mAh 4 cell lithium Polymer battery that we averaged 7 minutes
of flight so set your timer accordingly to have some reserve for
your landing. The Sbach tracks really well in slow speed but
you’ll want to keep a little power on until you are over the
runway and ready to flare. Keep a little backpressure on the
elevator stick and try to land on all three wheels. After landing,
always remember to hold up elevator when taxiing to keep the
tailwheel firmly to the ground.
We hope that your Sbach XA-41 will provide you with many
enjoyable hours of flight. Good luck and safe flying!
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