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Use the control surface travel gauges supplied in this kit on D/C
SHEETS 5503 and 5506. The gauges provide two settings:
GENTLE response, and a quicker AEROBATIC mode. Even if
you are a proficient flyer, we encourage you to start out with the
gentle marks and work up to the aerobatic settings. This will give
you an opportunity to experience the different travel responses.
AILERON GAUGE
Place the gauge at Rib #10 (wing tip) to measure aileron travel.
Equal movement up and down. Note the GENTLE and
AEROBATIC setting marks.
ELEVATOR GAUGE
With the point point ‘UP,” locate the gauge at the tip of the
horizontal stab. The travel movements are not the same up and
down. Note the GENTLE and AEROBATIC setting marks.
RUDDER GAUGE
Locate the gauge at the air balance space. Flip the gauge to the
opposite side to check opposite travel. Note that there is only
one setting for rudder.
CONTROL SURFACE TRAVELS
SETTING UP AND FLYING THE EXTRA 300
SETTING UP
Time spent in setting up pays big dividends during your first
flights. Some flyers prefer VTR on flying surfaces, Mile others
prefer EXPO. If you choose EXPONENTIAL, start with 25% and
adjust from there. Set the throws to the higher setting and use
the EXPO to “soften the neutral.” For VTR, inhibit the dual rate,
but set as follows: AILERON 65%, ELEVATOR 65%. Note again
that the max throws are in the high position on the travel gauges,
which is a good starting point. From there, adjust to personal
taste.
Balance is very important, as too far forward will cause the
aircraft to want to nose over on takeoff, particularly in grass.
Balance that is too far back will make the aircraft pitch unstable
and difficult to control. Balance CAREFULLY, reference the
plans. Start with the forward location and add tail weight carefully.
FLYING TIPS
This EXTRA is very easy to fly, if properly set up. On take off the
plane has excellent stability, but it will feel nose heavy. Always
use full up elevator when taxiing to prevent nosing over. Keep
first flights short and check the aircraft often.
Landing is quite straight forward. The plane is “clean” and will
glide well. However, it won’t snap unless rudder is applied. Try to
land in a 3-point configuration and, Men the mains touch, release
some of the “up” used in the flair. This will eliminate the bounce
on landings.
In knife edge, the EXTRA will take some opposite aileron flight
to keep the wings perfectly vertical. It can be hand flown or, with
a computerized radio, automatically mix in the correction. Mix
4% opposite aileron for rudder direction used. No elevator mix
is required.
Summary of Contents for EXTRA 300
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