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-trike fairing with large lateral surface, especially in the nose part, create a strong
destabilizing moment when it slips.
All these phenomena can be counteracted by fixing a stabilizing fins far enough
behind the center of gravity of the trike body, or by increasing, concentrating the lateral
surface on the rear part of the trike (like trike without fairing has), or by winglets (with
fins) mounting on the wing .
No such effects were observed when flying Profi TL with trike Aeros 1-582.
This trike has the same accelerating and of course it requires from pilot adequate handling
responses. But there are no dangerous regimes that are near the limit of controllability, which
exist when flying the Aeros 2-912 Profi TL without the wheel fairings with the fins.
These observations in our mind the following requirements must be adhered when using the
PROFI TL wing:
1. Using the Profi TL wing on the other trikes than the AEROS trikes require adapting of the
hang point, height of the control frame, position of the control bar in flight and checking of
sufficient clearance of any part of the wing to the propeller in any position possible to steer.
These checks usually are done without mentioning. In case of the PROFI TL wing your trike
has to be also adapted for Profi TL wing and a thorough test flight must be performed in which
a highly qualified test pilot must check the microlight has no effect as described above.
2. It is clear that on trikes, which have large fairings, such as Aeros 2, Cobra, Class…,
applying the Profi TL wing not acceptable, if flying without the wheel fairings with fins.
Even with wheel fairings with fins, when using the Profi TL wing test flights by proficient pilots
are without exception required to prove save handling in any situation.
3. The probability of observing such effects with trikes like Antares (Graffitti) and similar is much
lower.
But they too are required to perform thorough flight test by qualified test pilot.
4. There were no such effects observed while using any trike with the standard PROFI with
kingpost.
When ordering the PROFI TL You must consider all these aspects. In case You are not
absolutely sure about Your choice please send to Aeros all information (picture, trike and
engine characteristics) about the trike, on which the Profi TL is supposed to be installed, for
discussion and analyzing the installation.
3. PROFI TL REASSEMBLY AFTER SHIPPING PROCEDURE
3.1. Unzip the wing bag. Undo the Velcro straps. Remove battens, the control bar and the outer
leading edge tubes from the wing bag. Remove all packing material.
3.2. Unfold the sail along the leading edge to its full length. Attach the outer leading edge tubes
to the front leading edge tubes according to the markings: L-left, R-right. The triangular marking
on the leading edge tube #3 and the triangular marking on the leading edge tube #2 should
match together (fig. 1, shown without the sail).
Working on one wing at a time and working with the appropriate leading edge # 3, fold the outer
sprog, which is attached to the outer leading edge tube, forward. Slide the inboard end of the
leading edge tube # 3 into the sail.
Align the outer leading edge properly so that the sprog bracket is on the inside of the leading
edge, and slide the outer leading edge tube forward carefully until it engage completely on the
