B-Line Stall - Nova ROOKIE Betriebshandbuch

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B-line stall:

To induce a B-line stall symmetrically pull down both B-risers by about 20cm.
The airflow over the top surface is almost fully detached and the canopy enters
a vertical descent flight mode without forward movement.
Further pulling of the B-risers reduces the surface area more and increases the
sink rate. (up to 10 m/s)
Be careful, pulling too far may cause a frontal horseshoe to form.
To exit from this flight mode release the B-risers quickly (1 sec).
The canopy surges forward reattaching airflow over the top surface again and
resumes normal flight.
When the B-risers are released, the brakes should not be activated. This will
give the canopy the possibility to gain speed and resume normal flight.
If canopy does not recover apply both brakes gently to recover.
ALL RAPID DESCENT TECHNIQUES SHOULD FIRST BE PRACTISED IN
CALM AIR AND WITH SUFFICIENT HEIGHT SO THE PILOT CAN USE THEM
IN EMERGENCY SITUATIONS!
FULL STALLS AND SPINS ARE TO BE AVOIDED AS WRONG RECOVERY
PROCEDURES, IRRESPECTIVE OF THE TYPE OF PARAGLIDER, MAY
HAVE DANGEROUS CONSEQUENCES!
BY FAR THE BEST TECHNIQUE IS TO FLY CORRECTLY AND SAFELY, SO
YOU NEVER HAVE TO DESCEND RAPIDLY!
FOR ALL EXTREME MANOEUVRES AND RAPID DESCENTS PLEASE
NOTE:
- FIRST PRACTICE MANOEUVRES WITH AN INSTRUCTOR DURING
SAFETY TRAINING
- BEFORE INDUCING THE MANOEUVRE THE PILOT MUST MAKE SURE
THAT THERE ARE NO OTHER
- AIR SPACE USERS BELOW HIM!
- DURING THE MANOEUVRE THE PILOT MUST HAVE THE CANOPY
WITHIN HIS VIEW!