Instructions

The suggested control throw setting for the 50mm Viper are as follows (dual rate setting):
Tips: The maiden flight should always be flown
using low rates, fly the aircraft until you are famil-
iar with its characteristics prior to trying high
rates. Make sure the aircraft is flying at a decent
altitude and speed prior to using high rates, as
the aircraft will be sensitive to control inputs with
the larger control surface movements.
10mm up / downElevator
Aileron
8mm up / down
8mm up / down10mm up / down
a.
b.
c.
d.
e.
f.
Preflight check
Clevis installation
transmitter and model setup
Control throws
1.Pull the tube from the clevis to the linkage.
2.Carefully spread the clevis, then insert the
clevis pin into the desired hole in the control
horn.
3.Move the tube to hold the clevis on the
control horn.
After assembly and prior to your first flight, make sure all control surfaces respond
correctly to your transmitter by referring to the diagram below.