Ram air parachute with multiple pressure centers

Details Ram air parachute with multiple pressure centers Ram air parachute with multiple pressure centers

1986-07-08

1987-11-10

Barefoot, Galen

Aeronautics and astronautics

Safety lowering devices

Parachutes

244146, B64D 1702

Patent

active

047052384

ABSTRACT:
Upper and lower rectangular canopies are connected by a plurality of transversely spaced vertical airfoil shaped ribs to define a plurality of longitudinal air flow chambers. Suspension lines are connected to selected ones of the ribs and are arranged in longitudinally spaced and transversely extending rows. Cells are defined which consist of a plurality of adjacent chambers between any two transversely adjacent suspension lines. Some of the cells have three chambers while others have two chambers. The suspension line dimensions and trim angles are used to impart multiple pressure centers and different arc anhedral shapes to improve various characteristics of the parachute including opening, stability and accuracy.

REFERENCES:
patent: Re26427 (1968-07-01), Jalbert
patent: 3228635 (1966-01-01), Hughes et al.
patent: 3285546 (1966-11-01), Jalbert
patent: 3428277 (1969-02-01), Everett, Jr.
patent: 3498565 (1970-03-01), Nash-Boulden
patent: 3524613 (1970-08-01), Reuter et al.
patent: 3525491 (1970-08-01), Barish
patent: 3540684 (1970-11-01), Snyder
patent: 3690603 (1972-09-01), Lemoigne
patent: 3724789 (1973-04-01), Snyder
patent: 3945592 (1976-03-01), Sutton
patent: 4175722 (1979-11-01), Higgins
patent: 4389031 (1983-06-01), Whittington
patent: 4399969 (1983-08-01), Gargano
"Parachutist", Aug. 1970, (cover) (a publication of the U.S. Parachute Assoc.).

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