DAVINCI GLIDERS / JAZZ
10
15pt
11.6 B stall
11.7 Cravat
The JAZZ has a very clean stable B stall. To enter the B stall,
the pilot has to pull the first 20cm slowly until the r glider
loses forward speed and starts to descend at around 6 m/s
vertically.. Do not release the brake handles during B stall.
If you pull too much B-line the glider may horseshoe and
move around a lot. If this happens, release the B risers.
To exit the B-stall the B-risers should be released symmetri-
cally and in one smooth, progressive motion. The glider will
resume normal forward flight without further input. Check
you have forward flight again before using the brakes.
In case a cravat should occur from an asymmetric collapse
or other manoeuvres, it is important to keep your flying di
-
rection 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 you can not do it and the rota-
tion is increasing, you must use the parachute.
11 Deflations
11.5 Asymmetrical stall
It can take place when you pull one of the brakes too hard,
or while spiraling at a small speed in turbulence you in-
crease the angle of attack. Rotation in the asymmetrical
stall is called negative spiral. This is one of the most dan-
gerous flying situations. In order to get out of asymmetrical
stall, just release the brakes. There may follow side thrust
forward with a following wing collapse.
