GIN Boomerang 10 - Manual (Page 23)

23 /62 Boomerang 10
Fig. 1: Grabbing the stabilizer/winglet main line
Alternatively, on the side of the wing with the cravat, pull the brake fast and strong. Be careful
not to let the wing enter a developed spin. If the tangle has not come free after several
attempts, you still have the option to open it like a deep stall or a full stall. These flight
manoeuvres always require adequate altitude and a high level of pilot skill.
Deploy your reserve if the corrective manoeuvres described in the following sections do not
return the glider to a controllable flying position or if there is not enough altitude for
correction.
Symmetric front collapse
A symmetric front collapse will normally reopen promptly by itself without any pilot input. The
glider will regain airspeed with a small surge. If counter braking, be careful not to over-correct
or to brake too early, when the glider is still behind you - danger of a stall! If the glider does
not re-open by itself, pull the brakes firmly for a second or two and then release promptly. This
also prevents the wing tips moving forwards during the front stall. In the case of extreme front
stalls across the entire wing chord, the wing tips may move forward. Stop the glider forming a
U-shape by timely and energetic use of the brakes. There is a risk that the wingtips will become
tangled if they touch each other.
Types of stall
When a paraglider flies through the air, a laminar and turbulent boundary layer is created.
Extremely dangerous flight configurations can result if the laminar boundary layer is
interrupted, with practically the entire airflow along the top surface braking away. This
happens in particular when the angle of attack is too great.
WARNING Full stall and spin are manoeuvres which can be fatal if recovery is not correct.
These manoeuvres should therefore be avoided. However, it is important to learn
how to recognise the indications that a glider is about to stall so that you can take
immediate action to prevent it.
There are three different types of stall in paragliding.