P-27
Assembly & Operation Manual
Take-Off
Do some taxi tests before your flight! Make sure you are familiar with all settings and
make sure the model track straight on the ground without rudder input.
Choose a fine day for the maiden flight. Do not force a maiden flight!
Murphy will visit you!
Select take off flap or flight mode 1 and open throttle. Gently pull back on stick 30m
down the runway. The Viper will be in the air faster than you expect. Raise the flaps
and gear at safe altitude and let the model sit on rails.
Slow Flight
Most of the first flight should be utilized to get familiar with the slow speed flight charac-
teristics. Select the flaps to the takeoff position; there should be no pitch change. Ex-
tend the gear and select full landing flaps; adjust the power to maintain level flight and
a speed of about 80—90mph.
Climb to a safe altitude and slow the model to the edge of a stall to know where that
edge is.
Landing
Fly a complete circuit before landing. Approach from the downwind side and lower the
LG. Fly a complete circuit getting use to the power required. On the next circuit lower
the flaps. If you have a headwind be very careful not to get below the power curve on
the downwind side. I do not use flaps on the Viper with a headwind.
Align the model and use throttle to control the descent! The elevators will stay very ac-
tive even at low speed. Flare the model just before touch down. Let the model roll out
and apply brakes.
Taxi back and do necessary adjustments to customize Viper for your need!
We at Skymaster wish you many happy flights with your Viper! Put some smoke and
landing lights and you will be centre of attention at your next air show!
Regards,
Anton Lin and Skymaster Team!
