GECKO OWNERS MANUAL
Version 3 28
GENERAL TUNING HINTS
Your Gecko is test flown prior to delivery. Unless it has been damaged in transport it will arrive with
standard factory trim.
The flight characteristics for proper “trim” setting are as follows:
Trim speed without pilot input is approximately 4 kph (2 mph) above stall speed.
The glider will produce bar pressure to return to this trim setting whether it is slowed below
or accelerated above this speed.
The glider will fly straight unless acted upon by variations in the air.
The glider will bank evenly, both to the left and right, showing no differing tendency to
increase the bank (wind in to the turn) or to flatten out in the turn, thus coordinating
identically in both directions.
If you are unsure about making adjustments please seek assistance from your Moyes dealer or at
least a more experienced pilot.
Whenever you make adjustments, only change one thing at a time.
Check the simple things first
Batten tensions: The flip tips should be as loose as possible without leaving any wrinkles in the sail
on top of the batten pocket. To adjust the batten length wind the flip tip in or out (they are threaded)
Check the tip batten is inserted correctly (with the bend down).
Batten shape: Compare the battens of each wing and make sure they match. If there are differences
you will need to check them against the profile that came with your glider.
Do not alter the dive strut setting or luff lines from original setting and specifications. Alteration of
these could affect the glider’s pitch stability and would possibly go undetected in normal flight
conditions.
Trim Speed
Your glider is delivered with the correct trim setting. Do not alter this without first discussing it
directly with Moyes or your Moyes dealer.
Trim speed adjustment can be achieved by moving dingle-dangle forward to increase trim speed
or aft to reduce trim speed. Each hole position is equivalent to approximately a 1.5mph (2.5kph)
change of trim speed.
After many hours of flight time the trim speed may change as the sail deforms. This is a normal
process for all gliders.
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