Rocket with backwards gliding recovery

Details Rocket with backwards gliding recovery Rocket with backwards gliding recovery

2005-08-09

2005-08-09

Banks, Derris H. (Department: 3712)

Amusement devices: toys

Aerodynamically supported or retarded

C446S052000, C446S056000

Reexamination Certificate

active

06926576

ABSTRACT:
This invention is a long thin rocket that launches forward and glides backward after an ejection pitch maneuver with no moving parts. It takes advantage of a shift in center of pressure caused by a change in the angle of incidence of the rocket. This change in angle of incidence is caused by the side thrust pitch maneuver. The pitch maneuver is initiated by the ejection charge out a side thrust port or other side thrusting apparatus at a location on the rocket causing a large torque about the center of gravity of the rocket. The center of gravity of the rocket after the pitch is optimally less than 60% of the way between the Barrowman center of pressure and the center of lateral area center of pressure.

REFERENCES:
patent: 2841084 (1958-07-01), Carlisk
patent: 3114317 (1963-12-01), Estes
patent: 3157960 (1964-11-01), Schutz et al.
patent: 3452471 (1969-07-01), Street
patent: 3965611 (1976-06-01), Pippin, Jr.
patent: 5707270 (1998-01-01), Johnson et al.
patent: 08136198 (1996-05-01), None
AVI Astroport advertising flyer and instruction sheet Mineral Point, WI 53565.
Robert H. Goddard, Esther C. Goddard, G. Edward Pendray Rocket Development Liquid-Fuel Rocket Research 1929-1941. ©1948 pp 112-115 Prentice-Hall, Inc. United States.
Jim Barroman Technical Information Report 33 Calculating the Center of Pressure ©1970 pp 1-38 Centuri Engineering Company Phoenix, Arizona 85001.
Vernow Estes Technical Report TR-1 Rocket Stability 1960-1965 pp 1-2 Estes Industries, Penrose CO.
William J. Taylor, III Technical Report TR-9 Designing Stable Rockets ©1965 pp 1-4 Estes Industries, Penrose, CO.

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