However, the patent default of the legislator causes the protection of hobby and sport practice of hang-gliding to be either wholly inadequate or ruled by ambiguous regulations. It has also provided for the issue, within six months, of special regulations aimed at "checking the psycho-physical fitness required in handling" such aircraft in additions to the technical knowledge and the information about traffic, safety, insurance regulations relevant to the matter. 106 of 25th March 1985 had defined the specifications of the particular aircraft designed for hobby or sport flying as is the hang-glider. The wing also has other advantageous properties. It was stated that an ultralight elastic wing of a new kind was most suitable for good control. The influence of the span and the torsional elasticity of the wing was determined. The problem of the lateral controllability of the hang glider by the pilot's weight shift was considered. Improvement of hang glider performance by use of ultralight elastic wing This distribution of injury seems to be closely related to the design of the hang glider. Both patients sustained full-thickness patches of burn injury, with underlying muscle damage and peripheral neurological injury. They demonstrate an interesting pattern of injury, not described in current burns literature, involving both hand and lower abdominal burns. Two cases of hang-glider pilots contacting 11,000-volt power lines have recently been treated in the Royal Brisbane Hospital Burns Unit. High-voltage electrical injury has been well documented in a number of situations, such as the occupational hazard of linesmen and construction workers, and in the context of overhead railway power lines. Pattern of burn injury in hang-glider pilots. The minimum recovery distance can be closely approached if the glider is equipped with a small all-moveable tail surface having sufficient upward deflection. A hang glider, having a wing loading of 5 kg sq m and capable of developing a lift coefficient of 1.0, should recover to horizontal flight within a vertical distance of about 12 m. According to Lanchester's phugoid theory, recovery from rest to horizontal flight ought to be possible within a distance equal to three times the height of fall needed to acquire level flight velocity. Longitudinal control of a hang glider by weight shift is not always adequate for recovery from a vertical dive. A means for improving the control of hang gliders while retaining the same basic control feel is proposed.ĭynamics of ultralight aircraft: Dive recovery of hang gliders Some examples of the characteristics of a straight-wing configuration and a Rogallo-wing configuration are given. Company no longer exists.Īnalysis and experimental studies of the control of hang glidersĪ theoretical analysis of the longitudinal and lateral characteristics of hang gliders in straight flight, pullups, and turns is presented. The Dickenson kite served as prototype for the Australian Moyes line of hang gliders. The Rogallo technology, particularly the airfoil frame was incorporated in the design of a kite by John Dickenson. substantially broadened the flexible airfoil technology base which originated from NASA's reentry parachute. Development of Rogallo wings, used by U.S. They were issued a flex-wing patent and refined their designs. Rogallo and his wife Gertrude researched flexible controllable fabric airfoils with a delta, V-shaped, configuration for use on inexpensive private aircraft. Birdmen can choose from prone, upright or swing seat harnesses in either kits or ready-to-fly gliders.įrancis M. Pushing forward slows your speed and levels you off.
Wing is simple to control, pulling back on control bar allows you to pick up speed and at the same time lowers your altitude.
#Hang glider kits free#
Free Flight produces 1,000 gliders a month and other companies are entering the field.
0 kommentar(er)
