Method for determining initial velocity for a rapid fire gun

Details Method for determining initial velocity for a rapid fire gun Method for determining initial velocity for a rapid fire gun

1975-04-02

1976-06-15

Aegerter, Richard E.

Geometrical instruments

Area integrators

Electrical

33169B, G01B 500

Patent

active

039627934

ABSTRACT:
A method for determining initial or muzzle velocity for a rapid fire gun se barrel becomes eroded with use. A gauge simulating a rotating band of a projectile is inserted into a gun barrel and the depth of penetration is measured to provide a projectile seating dimension. This dimension is converted into a velocity loss value by using an empirically derived chart. This velocity loss value is subtracted from the initial velocity value for a new gun barrel to provide a corrected initial velocity which is used as an input to a computing unit of a gun fire control system.

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patent: 1351721 (1920-08-01), Eickhoff et al.
patent: 2433108 (1947-12-01), Foster
patent: 2544158 (1951-03-01), Henderson
patent: 2553704 (1951-05-01), Eckel
patent: 2619727 (1957-12-01), Krohn
patent: 3225447 (1965-12-01), Bryant
patent: 3538318 (1970-11-01), Clutterbuck et al.
patent: 3670420 (1972-06-01), Kiewicz et al.

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