Gunnery practice method and apparatus

Details Gunnery practice method and apparatus Gunnery practice method and apparatus

1975-06-11

1976-06-29

Grieb, Wm. H.

F41G 326

Patent

active

039655822

ABSTRACT:
An ordnance piece is aimed at a terrain and the trajectory followed by an imaginary projectile from the ordnance piece is calculated. A range finder is sighted through a succession of points along the trajectory onto the terrain. Simultaneously the distance between a fixed reference point and each of the points through which the range finder is sighted is also calculated and these two distances are compared until the range finder gives a reading which corresponds to a point on the trajectory. This point corresponds to the intersection of the trajectory with the terrain and is marked so as to indicate where the imaginary projectile would have hit.

REFERENCES:
patent: 3026615 (1962-03-01), Aubert
patent: 3608212 (1971-09-01), Lenneryd et al.
patent: 3609883 (1971-10-01), Erhard
patent: 3698816 (1972-10-01), Lutchansky
patent: 3820253 (1974-06-01), Willey
patent: 3882496 (1975-05-01), Lewis et al.

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