Ablative shielding for hypervelocity projectiles

Details Ablative shielding for hypervelocity projectiles Ablative shielding for hypervelocity projectiles

1992-05-21

1993-06-08

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft structure

Fuselage and body construction

244158R, 89 3602, B64D 700

Patent

active

052171850

ABSTRACT:
A hypervelocity projectile shield which includes a hollow semi-flexible housing fabricated from a plastic like, or otherwise transparent membrane which is filled with a fluid (gas or liquid). The housing has a inlet valve--similar to that on a tire or basketball, to introduce an ablating fluid into the housing. The housing is attached by a Velcro mount or double-sided adhesive tape to the outside surface of a structure to be protected. The housings are arrayed in a side-by-side relationship and may be in layers and in an over-lapping relationship for complete coverage of the surface to be protected. In use, when a hypervelocity projectile penetrates the outer wall of a housing it is broken up and then the projectile is ablated as it travels through the fluid, much like a meteorite "burns up" as it enters the earth's atmosphere, and the housing is deflated. The deflated housing can be easily spotted for replacement, even from a distance. Replacement is then accomplished by simply pulling a deflated housing off the structure and installing a new housing.

REFERENCES:
patent: 3649426 (1972-03-01), Gates, Jr.
patent: 3896758 (1975-07-01), Di Battista
patent: 4194431 (1980-03-01), Markus et al.
patent: 4925057 (1990-05-01), Childress et al.
patent: 4936528 (1990-06-01), Butner et al.
patent: 5067388 (1991-11-01), Crews et al.

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