Cross-type parachutes have been traditionally used for the deceleration of a variety of moving projectiles. In recent years their use has been extended to include the roll of stabilizers. The static and dynamic characteristics of the parachute, in stand-alone or as part of a closely coupled payload-parachute configuration, have thus gained increased attention. Cross-type parachutes produce higher drag when spinnign. The spin charact-eristics and their dynamic effect on the stability have produced yet anther variable that should be considered in the control restructions of the parachute design.
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