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Development of a Free Balloon Propulsion System.

AD760754

Publication Date	1973
Personal Author	Vorachek, J. J.; McGraw, E. W.; Bezbatchenko, J. W.
Page Count	158
Abstract	Design, fabrication, development and testing of a free balloon propulsion system for flight at 60,000 feet and 15 knot true airspeed is reported. The mission of this system was to demonstrate the feasibility of powering a natural shape balloon in the minimum wind layer. The propulsion system consists of a 35.4 foot diameter propeller driven through a gearbox by a D. C. electric motor. The electric motor is powered by a group of silver zinc batteries. Steering of the gondola and balloon system is accomplished with a rudder in the propeller slipstream. A command control and telemetry system is used to control the balloon and propulsion payload. The propulsion system (less propeller) was tested in an altitude chamber to verify proper functioning under high altitude, low temperature conditions. (Modified author abstract)
Keywords	Electric motors Airships Captive tests Propulsion Propellers(Aerial) Design Storage batteries Wind Gears Payload Automatic pilots
Source Agency	Invalid Source Agency Code
NTIS Subject Category	51C - Aircraft
Corporate Authors	Goodyear Aerospace Corp Akron Ohio
Document Type	Technical Report
Title Note	Final rept. 22 Sep 71-22 Feb 73.
NTIS Issue Number	197314
Contract Number	F19628-72-C-0072

Development of a Free Balloon Propulsion System.

Development of a Free Balloon Propulsion System.
AD760754

Publication Date	1973
Personal Author	Vorachek, J. J.; McGraw, E. W.; Bezbatchenko, J. W.
Page Count	158
Abstract	Design, fabrication, development and testing of a free balloon propulsion system for flight at 60,000 feet and 15 knot true airspeed is reported. The mission of this system was to demonstrate the feasibility of powering a natural shape balloon in the minimum wind layer. The propulsion system consists of a 35.4 foot diameter propeller driven through a gearbox by a D. C. electric motor. The electric motor is powered by a group of silver zinc batteries. Steering of the gondola and balloon system is accomplished with a rudder in the propeller slipstream. A command control and telemetry system is used to control the balloon and propulsion payload. The propulsion system (less propeller) was tested in an altitude chamber to verify proper functioning under high altitude, low temperature conditions. (Modified author abstract)
Keywords	Electric motors Airships Captive tests Propulsion Propellers(Aerial) Design Storage batteries Wind Gears Payload Automatic pilots
Source Agency	Invalid Source Agency Code
NTIS Subject Category	51C - Aircraft
Corporate Authors	Goodyear Aerospace Corp Akron Ohio
Document Type	Technical Report
Title Note	Final rept. 22 Sep 71-22 Feb 73.
NTIS Issue Number	197314
Contract Number	F19628-72-C-0072