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PROFI TL wing should fly straight and level without any pilot input with a cruising speed
ranging between 70 kph and 140 kph using a trim device.
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 PROFI TL 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.
WARNING
DO NOT PERFORM MORE THAN ONE ADJUSTMENT AT ONCE. IF YOU DO NOT HAVE
ENOUGH EXPERIENCE TO TEST FLY THE WING, ASK MORE EXPERIENCED PILOT TO
DO IT FOR YOU. TEST FLIGHT SHOULD BE PERFORMED IN SMOOTH AIR AND WITH
CAUTION.
The new wing has been tested and tuned by Aeros. However, in case you have sufficient
experience, you may tune the wing by yourself, as written below, if necessary. There are a
number of adjustments that affect the flight characteristics.
BATTENS
The battens will need to be compared and adjusted to match the batten profile template at
regular intervals. Small variations in batten camber (± 5 mm at the trailing edge) will not have
significant effect on flight characteristics.
BATTEN TENSION
With some airtime batten tension may get loose, this may cause the trailing edge to flatter. If
the battens tensioned too much, the handling will become harder. Make sure the battens are
tensioned on the left and right wings identical.
The top battens on the Profi TL are tensioned with adjustable batten tips.
The desired batten tension can be easily adjusted by the threaded lever batten tip adjuster.
To increase batten tension rotate the threaded lever batten tip adjuster counter clockwise. To
decrease batten tension rotate the threaded lever batten tip adjuster clockwise.
TURN CORRECTION
There are two self-tapping screws for the turn adjustment on the outer part of the leading edge
# 3 (fig. 62)
Figure 62
By rotating a wingtip down, the lift on the
end of that wing will increase and this
half-wing will rise in flight. Adjust the self-
tapping screw up by 2.5 mm at a time.
When rotating a wingtip up, the lift will be
decreased on that side and the half-wing
will drop on that side. Adjust the self-
taping screw down by 2.5 mm at a time. It
is preferable to rotate the wingtip up first
rather than down.
Adjust one wingtip at a time and test fly
after each adjustment.
