Apco Hybrid Tandem, Руководство пользователя

Страница: 18 / 31

www.apcoaviation.com
18
Signs of parachutal stall
• The pilot has very little or no forward airspeed and no wind in his face.
• The glider will be fully open but the cells will be bulging in and not out on the bottom surface.
• You will have an increased vertical descent.
Recovery from parachutal stall
It is important to recognize this situation. Most accidents involving parachutal stall happen because the pilot did not realize that he was
in deep stall.
The best way to exit a parachutal stall is to pull all the A risers down to get the wing flying again. The pilot can pull the riser down until
the wing starts to fly again. The moment the wing starts to fly the pilot should release the A risers, or the wing might suffer a frontal
collapse.
Alternatively, the pilot can release the trimmers to lower the angle of attack and get the wing flying again.
By pulling one or both brakes while in deep stall the pilot can accidentally enter a full stall or spin. (Not recommended).
SPIRAL DIVES
The HYBRID TANDEM has very good behaviour in spiral and has no tendency to stick in the spiral. By progressively applying brake on
one side the glider can be put into a spiral dive. Safe high sink rates can be achieved like this. The spiral has to be exited slowly by
releasing the brake over one complete turn or the glider may pitch back, and then forward and possibly suffer a collapse.
Care must be taken that the pilot has enough height to exit the spiral safely.
Sink rates in excess of 19m/s can be obtained.
CAUTION:
SOME GLIDERS CAN BE NEUTRAL IN SPIRAL AND MAY NOT EXIT WITHOUT PILOT INPUT. TO EXIT A NEUTRAL SPIRAL THE
PILOT HAS TO LEAN HIS/HER WEIGHT TO THE OUTSIDE OF THE TURN OR APPLY BRAKE INPUT TO TURN OUT OF THE SPIRAL
(ON THE OUTSIDE WING). AS SOON AS THE GLIDER STARTS TO SLOW DOWN IN THE SPIRAL THE OUTSIDE BRAKE MUST BE
RELEASED.
PILOTS CAN SUFFER BLACK OUTS IN SPIRALS AND THE PILOT HAS TO EXIT THE SPIRAL AS SOON AS he/she FEELS ANY
ABNORMAL SYMPTOMS (Black dots in field of vision or light-headedness).