DAVINCI GLIDERS / HULA
10
12.2 Spiral dive
The spiral dive is the most demanding descent technique and should be
learned at enough height, preferably during an SIV course.
When you hold one- sided brake down for a long time, the glider goes into a fast sharp
turn and loses a lot of height. The sink rate could be more than 15 m/sec. To get out of
the spiral dive you must release the inner brake and use the outside brake to manage
your sink rate. Mind that HULA may take one more turn after releasing the brake.
12. Descent Techniques
12.1 Big ears
The sink rate can be decreased in a controlled way by folding both wingtips. While
holding the brakes you should symmetrically pull the outermost A-risers.
In order to return to the normal flight, you should release the A-risers and
pull the brake short times until wing tips regain pressure.
Spiraling is not permitted with big ears, because of the increased load on the
remaining lines so that they can be physically deformed.
11.7 Cravat
In case a cravat should occur from an asymmetric collapse or other maneuvers, it is
important to keep your flying direction by applying some brake on the opposite side
and weight shift.
You can also use strong deep pumps on the brake to the cravated side. If a pull of the
brake line is unsuccessful, pulling the stable line which is the outermost line on the
B-riser may work.
If you can not do it and the rotation is increasing, you must use the parachute.
