Performance Variable Quick 113, Руководство пользователя

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Quick.us /
Performance Variable 11
5
Calculate the wing loading now for the Quick canopy you intend to jump.
If this figure is below 0.7 lbs/ft², the parachute will be relatively docile and easy to
lead. It will also have reduced penetration into the wind and reduced inflation pres-
sure in the entire canopy. The profile will not be as rigid as it should be. A figure
below 0.7 lbs/ft² is as dangerous as a figure above 1.2 lbs/ft²!
If this figure is between 0.7 and 1.0 lbs/ft², the canopy will turn fast and have a
higher airspeed. It will require skill to land well in many weather conditions or at
higher altitudes. Be sure your skill level is up to the demands of these situations.
The inflation pressure is increased, and the canopy profile is more rigid!
If this figure is between 1.0 and 1.2 lbs/ft², the canopy will fly very fast, turn very
fast and have a very high descent rate. It will be very difficult to land in confined ar-
eas. A high skill level will be required to get an acceptable landing, even under ideal
conditions. These 7-cell reserves should not be used with wing loading in excess of
1.0 lbs/ft², unless the jumper has a great deal of experience (300 jumps minimum)
with similar main parachutes at this wing loading. He/she must realize the risk in-
volved in these circumstances.
If the wing loading is greater than 1.2 lbs/ft², you are exposing yourself to a dan-
gerous situation . Turn rates, forward speed and rate of descent will all be very high.
Control range may be very short with stalls happening very abruptly with little warn-
ing. Normal landing techniques may not work. Extra airspeed on final approach
may be required to get enough flare to stop your rate of descent. A front riser ap-
proach or hook turn may be required, either of which are
very dangerous especially
under turbulent conditions.
PV does not recommend that anyone jump a Quick canopy that will result in the
wing loading exceeding 1.2 lbs/ft².
The best average wing loading for expert skydivers on a Quick is 1.1 lbs/ft².
Here is an example of how to calculate the wing loading of a 210 ft² canopy and
the jumper used in the example before:
190 lbs. : 210 ft² = 0.9 lbs / ft²