Accession Number : ADD003306

Title :   Toroidal Tail Structure for Tethered Aeroform Balloon.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Crosby,Edward Lewis , Jr

Report Date : 23 Nov 1976

Pagination or Media Count : 4

Abstract : The patent relates to a tethered aeroform balloon having an inflated toroid tail structure secured to the balloon hull by means of a plurality of rope lines for supporting the drag forces and the weight and steering forces of the tail structure. The inflated tail structure has a substantially symmetrical air foil section with support diaphragms secured inside the tail structure. The tail structure is inflated by an electric motor powered fan supported on the tail structure. A pressure switch prevents over inflation of the tail structure. A check valve prevents the escape of air from the tail structure when the fan is not running.

Descriptors :   *Balloons, *Tails(Aircraft), *Patents, Tethering, Attachment, Inflatable structures, Inflating, Rope, Check valves, Toroids

Subject Categories : Lighter-than-air Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE