DaVinci DUET PRO 40, Руководство пользователя

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depends on the size and the lightweight. The DUET
PRO has a minimum of 65cm(Max. 70cm) travel length
at maximum total load. Those numbers are just a
rough indication. (The publication of the brake travel
is claimed by the EN 926-2.)
It would be dangerous to use the brake travel
according to those numbers, because it is not
practicable to measure the brake travel during flight,
and in turbulence, the stall might occur with less
brake travel. If you want to use the whole brake travel
of your glider safely, it is necessary to do many
intended spins and full stalls to get a feeling for the
stall behavior.
10.4 Deep stall
It is possible for gliders to enter a state of the deep
stall. This can be caused by several situations
including; a very slow release from a B-line stall; flying
the glider when wet; or after a front/symmetric
deflation.
When you meet this situation you should fully raise up
both brakes and push the A-risers forwards or release
the trims symmetrically to regain normal flight.
10.5 Asymmetrical stall
It can take place when you pull one of the brakes too
hard, or while spiraling at a small speed in turbulence