Full Stall; Spin (Or Negative Spin) - Nova RA Betriebshandbuch

Full stall:

To induce a full stall, apply full brake on both sides.
The glider slows down steadily until it stalls completely. The canopy suddenly
surges backwards a long way. In spite of this uncomfortable reaction of the
canopy, both brake lines must be consequently held down with all your
strength until the canopy is stabilized (directly overhead).
The NOVA RA generally flies backwards during a full stall but doesn't always
form a front rosette.
A frontal rosette can be formed by entering the full stall slowly. When entering
(braking) fast, the canopy will not always form the desired front rosette.
To recover from a full stall, both brakes must be let up symmetrically at a fast
to moderate speed (within 1 second).
The NOVA RA surges forward a moderate amount after recovering from a full
stall, whereby a resulting front collapse is possible. Gentle symmetrical braking
as soon as the wing begins to move forward is recommended. If the pilot does
not brake the canopy, the NOVA RA surges forward to 90° angel. In the worst
case a big collapse will follow.
An "asymmetric" recovery (one control released faster than the other) from a
full stall can cause a big dynamic collapse.
IF A FULL STALL IS RELEASED TOO EARLY, TOO SLOW OR TOO FAST,
OR OTHERWISE INCORRECTLY, THE CANOPY CAN SURGE EXTREMELY
The danger of overcorrecting and overreacting exists during all extreme flight
manoeuvres. Thus, any corrective action must be gentle and steady and done
with feel!

Spin (or negative spin):

During a spin the canopy turns relatively fast around the centre section of the
canopy while the inner wing flies backwards (hence the term negative).
There are two usual reasons for an unintentional spin:
- one brake line is being pulled down too far and too fast (e.g. when inducing a
spiral dive)
- when flying at low speed one side is being braked too hard (e.g. when
thermalling).
ALWAYS APPLY BOTH BRAKES EVENLY!
FAR FORWARD.
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