Spiral dive parachute.

Spiral dive is also important for parachute. The spiral dive is the most rapid form of controlled fast descent with a little bit of practice you will achieve a sink rate of 15m/s and move. However spiral dives put Strong forces on the wing and glider and must be done carefully and skilfully. The forces involved can induce blackout and the rotation can produce disorientate on. Spiral dives as with all paragliding techniques are best learned under expert supervision. Paragliding courses offer a chance to practice spiral dives over water with a rescue boat standing by. The spiral dives is initiated by pulling the brake on one side and holding it down. Constant pulling on one brake narrows the radius of the furn and forms a spiral rotation in which high sink rates can be reached. As soon as the glider is in a spiral dive clear increase of sink rate and turn bank, the outside wing should aways be stabilised with the out side brake and the desired sink rate should be controlled with great delicacy.