Frictional roll control apparatus for a spinning projectile
AssigneeGeneral Dynamic Ordnance and Tactical Systems, Inc.
InventorsDouglas L. Smith, Joseph P. Morris
Life of this patent
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Abstract
The invention relates generally to a roll damping apparatus for a spinning projectile having a first section and a second section rotatably attached about a roll axis. The roll damping apparatus comprises a first portion attached to the front section, and a second portion attached to the rear section. The first portion is adapted to cause a braking frictional force to act on the second portion, the braking force being effective to control the spin rate of the front section relative to the rear section. The invention further relates to a spinning projectile having a roll damping apparatus.
Claims13
A spinning projectile having a roll axis, comprising:
- a front section rotatable about the roll axis;
- a rear section rotatable about the roll axis, the rear section rotatably attached to the front section;
- an aerosurface attached to the front section and adapted to create a first rotational torque counter to a spin of the rear section;
- and
- a roll damping apparatus including:
- a first portion attached to the front section,
- a second portion attached to the rear section,
- wherein the first portion is adapted to cause a frictional force to act on the second portion, the frictional force being effective to control a spin rate of the front section relative to the rear section.
Dependencies are inferred from the claim text.