Gin Boomerang 4, Руководство пользователя

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safer method because of a possible wind gradient close to the ground and your low
airspeed/high wing loading with big ears in.
Spiral dive
The spiral dive should be considered an extreme manoeuvre. Practice spiralling with caution and
lesser sink rates to get a feel for the Boomerang 4's behaviour. Weight shift and pull the brake
on one side gradually. Let it accelerate for two turns and you will enter the spiral dive. Once in
the spiral, you can control your descent rate and bank angle with weight shift and the outer
brake.
WARNING! A pilot who is dehydrated and/or not accustomed to spiralling can lose
consciousness in a steep spiral dive! As with all types of aircraft, we advise you to assist the
glider to exit from the spiral dive in a controlled manner. Let the glider decelerate for one or
two turns by applying outer brake and/or weight shift. Due to its long lines the Boomerang 4
can generate extremely high G-force in a spiral dive. You should use only moderate spirals so as
not to put unnecessary load on your lines.
B-stall
To quickly loose altitude without straining your body with G-force you can use the B-stall.
Reach up to the B-risers just below the maillons and twist your hands while gently pulling. It
will be difficult at first, but become lighter the more you break the airfoil. Once pulled, do not
release immediately. The glider needs to settle into a stable B-stall before releasing. On exiting
the B-stall the Boomerang 4 has a good dive without deep stall tendencies. We advise you to
release the B-stall symmetrically with both hands in a decided manner.
Full stall, dynamic stall
This is an extreme manoeuvre and there should never be any need to perform one in normal
flight.
Do not take wraps with your brakes before entering a full stall. Keep your hands close to your
body during the stall, and lock them under your harness seat plate if necessary. In a stable full
stall, the canopy will oscillate back and forth. Before releasing the stall, raise your hands
slightly and evenly to fill the glider with air. If possible, let the brakes up when the glider is in
front of you to avoid excessive surge. The Boomerang 4 will surge forwards to regain airspeed
and you need to counter brake the dive when the wing surges towards the horizon and then let
up the brakes to regain the complete airspeed of the wing again. Be careful to not stall the
glider again when damping the surge.
Never attempt a stall and then change your mind and release the brakes, as the glider will surge
radically.
Deep stall (parachuting, stable stall)
The Boomerang 4 does not have a tendency to get into nor stay in a deep stall. Should this
nevertheless occur, put your hands on the A risers and push forward to gain speed. On some
modern harness/accelerator setups, you can reach the speed bar without using your hands. If so,