Ammunition and explosives – Projectiles
Patent
1991-05-28
1993-04-06
Grieb, William H.
Ammunition and explosives
Projectiles
273232, F42B 600
Patent
active
052005739
ABSTRACT:
An improved aerodynamic surface for the exterior of vehicles moving through a gas and vehicles employing such improved surfaces. The objectives of employing such improved surfaces are reduced air resistance and increased lift.
The improved surface comprises a series of dimples or depressions formed into the portions of the surface of the vehicle. The improved surface is most beneficially located either at a leading edge, where the vehicle first cleaves the pool of air through which it is traveling, or on vehicle surfaces which tend to move the air pool to accommodate the presence of the vehicle itself or on vehicle surfaces to which the designer wishes to provide a lift function. Wings, ailerons and rudder surfaces are examples of surfaces to which a lift function is most applicable. The vehicle may be of the nature of an automobile, an airplane, a rocket or missile or a projectile fired from a gun. The invention is also applicable to the internal surface of pipes for conveying fluid.
REFERENCES:
patent: 1716435 (1929-06-01), Fotheringham
patent: 2728576 (1955-12-01), Martin et al.
patent: 4173930 (1979-11-01), Faires, Jr.
patent: 4804189 (1989-02-01), Gobush
patent: 4858929 (1989-08-01), Gobush et al.
patent: 4996924 (1991-03-01), McClain
Grieb William H.
Kramer Daniel E.
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