14
If the NAJA does not immediately recover from a frontal tuck, brake quickly and strongly
with both control lines (brake lines) to re-inflate the glide.
Caution – accident risk.
If you are not able to avoid a front stall, under no circumstances should you accelerate.
This could cause the lines to twist.
However, there is less risk of front stall than there is in free flying because of the
increased wing-loading and the greater angle of attack due to the thrust from the motor.
If there is turbulence, one side of the paraglider may collapse. Some of the cells deflate
and the paraglider could collapse or spin.
The NAJA inflates quickly and spontaneously if there is a small collapse on one side. If
there is a major collapse with open trimmers, the NAJA can abruptly turn more than
360° if the pilot does not take action. There is a risk of twisting. However the NAJA
nevertheless still allows the pilot enough time to react. The glider has minimal tendency
to hang and it can still be steered on the side which has not collapsed.
Ø
Counter-brake slightly on the side of the paraglider that is still inflated to stop it
turning away and to stabilise it.
Ø
Counter-brake just enough that the paraglider continues to fly straight ahead.
Ø
If the wing has not yet self-recovered, pump with the brake on the side that has
collapsed in order to open it, making use of the full braking distance.
Caution – accident risk.
Counter-braking too strongly can result in a stall on the inflated side.
The full stall occurs when the brakes are pulled down fully during flight. The special
design of the NAJA means that it has only minimal tendency to hang back, even with
the motor running under full throttle, and has about only 45cm braking distance. You
can tell when you are reaching stall point by the increasing control pressure. If the
brakes suddenly become soft again, you have stalled the NAJA. If the pilot immediately
releases the brakes again, the NAJA resumes flying straight away. If the brakes are
held down, the glider tips back and deflates. A slight horseshoe will form. If the full stall
continues, the pilot swings back under the canopy. The wing tips then continue to go
forwards and touch, and the pilot reaches sink speeds on an almost vertical flight path
of approx. 8-10 m/s.
To prevent the canopy shooting forwards on recovery, the glider should be inflated
before the brakes are released fully. The pilot releases the brakes enough that the
canopy reinflates but does not yet resume flight, then quickly releases the brakes fully.
The glider will shoot forwards, but not nearly as much as if the pilot attempted recovery
without first inflating the glider. If the brakes are released too slowly, it may result in a
spin. The spin will end spontaneously by fully opening the brakes.
Caution – accident risk.
•
If the canopy has gone backwards, the brakes must be held down. Otherwise
the canopy can surge forward and, in an extreme case, end up underneath the
pilot. Hold the brakes down until the canopy is above you again.
•
Do not under any circumstances accelerate in a stall – this could cause the
lines to twist.
Recovery
M
Asym-
metric
tucks
Recovery
M
Full stall
Recovery
M
Summary of Contents for NAJA
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