Aeronautics and astronautics – Missile stabilization or trajectory control – Stabilized by rotation
Patent
1987-03-04
1988-08-23
Jordan, Charles T.
Aeronautics and astronautics
Missile stabilization or trajectory control
Stabilized by rotation
102473, 102501, 29 12, B21K 2106, F42B 1300
Patent
active
047655666
ABSTRACT:
A method and an apparatus for reducing the spread of hit pattern for a rotationally-stabilized ammunition unit such as a projectile, which is discharged in a ballistic trajectory from an artillery piece towards a target which is to be combated including dynamic balancing of the shell (1) to reduce the effect of the air resistance between different shells, and increase hit probability. The inclination between the main axis of inertia of the shell and the geometric axis of the shell case are measured, whereafter these axes are set in parallel in that an adjustment weight (2) is mounted on one side of the point of gravity of the shell seen in its longitudinal direction. The adjustment weight (2) preferably consists of a disk or washer provided with an eccentric recess (4) for suitable weight and mass eccentricity.
REFERENCES:
patent: 3949677 (1976-04-01), Voss
patent: 4116404 (1978-09-01), Howell
patent: 4212244 (1980-07-01), Flatau
patent: 4241660 (1980-12-01), Donovan
patent: 4297948 (1981-11-01), Donovan
patent: 4558646 (1985-12-01), Hoffmann et al.
patent: 4621817 (1986-11-01), Musacchia
Albrektsson Kjell
Engfors Stig
Fixell Jan-Olov
Franzen Arne
Gustafsson Thomas
Aktiebolaget Bofors
Carone Michael J.
Jordan Charles T.
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