Variable Lift Inflatable Airfoil for Tethered Balloons.
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
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A variable lift inflatable airfoil for tethered balloons having a horizontal fin made up of two inflatable chambers. The primary or lower chamber is normally maintained at a greater pressure than the secondary or upper chamber. Proper inflation and deflation of the secondary chamber will stabilize the pitch attitude of the balloon at some desirable low, positive angle for any wind velocity. Author
- Lighter-than-air Aircraft
- Administration and Management