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7
6 TRIMMING
All Apco gliders are trimmed for optimum performance combined with unsurpassed safety.
It is very important not to re-trim or tamper with any of the lines or risers as this may alter
the performance and safety. Trimming of the brake line should be done in accordance with
this manual and carefully checked before flying.
7 RISERS:
The lift 450 is designed for a standard PPC (trike) configuration, with a 140-160 cm
distance between the base of the risers and should be using the standard risers of the
PPC (trike) manufacturers. For further information contact your PPC manufacturers (trike).
8 HIT VALVES (H
igh speed
I
n-
T
ake
)
The LIFT 450 is equipped with an Active HIT Valve system (patent pending) to improve the
overall performance and safety of the wing especially during accelerated flight.
The valve system allows maximum inflow of air when the glider acquires a lower angle of
attack while accelerated. HIT valves open and close in flight to increase the internal
pressure of the glider.
For the valves to work properly it is important to keep them wrinkle free especially in sub
zero temperatures. Make sure the valves are lying flat and are in the closed position when
you fold the glider. Before launch the pilot should check all the valves and verify that they
are flat and cover the entire area of the mesh opening. Creased and wrinkled valves will
not adversely affect the safety of the wing.
