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19
Important Safety Precautions
# First time flyer should never fly by himself / herself. Assistance from experienced flyer is
absolutely necessary.
# Pre-flight adjustment must be done before flying, it is very dangerous to fly a badly
pre-adjusted aircraft.
# GROOVY-90 is specially designed to be powered by 4c 0.91 engine, using a more
powerful engine does not mean better performance. In fact, over powered engine may cause
severe damage and injuries.
# Make sure the air field is spacious, never fly the plane too close to people and never get
too close to a running propeller.
# If you find wrinkles on the covering as a result of weather changes, you can use hot iron
to remove the wrinkles. Please begin with lower temperature setting and gradually raise
the temperature until the wrinkles are gone. Too hot an iron may damage the covering.
# Check and re-tighten up all factory assembled screws, use thread locker if applicable.
A180R1103
Elevator
Rudder
Ailerons
160 mm
6.3 in.
Adjust the control throws as shown in the diagram.
These throws are good for general flying. You can
adjust according to your personal preference.
25mm
25mm
60mm
60mm
The ideal C.G. position is 160mm (6.3 in.) behind
the leading edge measured at where the wing
meets the fuselage. In order to obtain the C.G.
specified, add weight to the fuselage or move
the battery position. Check the C.G. before
flying.
P.11
20mm
20mm
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