Aeros Still 17, Manual

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Section 5. MAINTENANCE
5.1. WING TUNING
- The Still-17 wing should fly straight and level without any pilot input with a cruising
speed of between 60 kph and 75 kph.
- Before making any adjustments to the wing, first check that the wing is in the standard
condition and that the battens all conform to the Still-17 batten template.
- If the wing is not new, check the condition of the frame especially the outer leading edge
tubes. The best is to remove the leading edges and check that they have the same
bend in them and when under load they flex equally.
-
Do not exceed the adjustment limitations.
- Do one adjustment at a time and test fly each time to measure the effect of each
change.
- Note all adjustments and changes in the log book.
-
Only tune and test fly the wing in perfect flying conditions.
5.1.1. CG Adjustment
- Moving the wing hang block forward along the keel tube will speed the wing up.
- Moving the wing hang block backwards along the keel tube will slow the wing down.
5.1.2. Turn Trim
2.1.4 There is a self-tapping screw for the turn adjustment at the outer part of the leading edge
# 3 (Fig. 28).
By adjusting a wingtip down, the lift on the end of that wing will be increased and that will lift
that wing in flight. Adjust the self-tapping screw up by 2.5 mm at a time.
By adjusting the wingtip up, the lift will be decreased on that side and the wing will drop on that
side. Adjust the self-taping screw down by 2.5 mm at a time.
Adjust one wingtip at a time and test fly after each
adjustment.
Fig. 28
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