Projectile having a radial direction of action

• US 6,216,597 B1
• Filed: 11/17/1998
• Issued: 04/17/2001
• Est. Priority Date: 11/20/1997
• Status: Expired due to Fees

• Current Assignee: GIAT Industries
• Original Assignee: GIAT Industries
• Inventors: Bredy, Thierry
• Primary Examiner(s): Price, Thomas
• Application Number:
  US09/193,248
• Time in Patent Office: 882 Days
• Field of Search: 102/522, 102/476, 102/211, 102/212, 102/213, 102/214, 244/3.21, 244/3.22, 244/3.23
• US Class Current: 102/476
• CPC Class Codes: F41G 7/222 for spin-stabilized missiles
• CPC Class Codes: F42B 12/14 the symmetry axis of the hollow charge forming an angle with the longitudinal axis of the projectile
• CPC Class Codes: F42C 13/006 for non-guided, spinning, braked or gravity-driven weapons, e.g. parachute-braked sub-munitions

Abstract

The technical scope of the invention is that of projectiles comprising at least one payload associating at least one explosive warhead and at least one target sensor, such warhead having an inclined direction of action with respect to the projectile axis and whose initiation is triggered further to the detection of a target by the sensor, said sensor having an observation direction close to the action direction. The projectile incorporates scanning means enabling the payload, at a given time during the trajectory, to be provided with a ratio of longitudinal velocity V over spin rate Ω which is less than or equal to a limit value so as to ensure ground scanning in the observation direction at a sufficiently small pitch to enable a target to be detected.

Claims

1. A projectile, notably a direct-fire anti-tank projectile, comprising at least one payload associating at least one explosive warhead and at least one target sensor, such warhead having an inclined direction of action with respect to the projectile axis and whose initiation is triggered further to the detection of a target by the sensor, said sensor having an observation direction close to the action direction, wherein it incorporates scanning means enabling said payload, at a given time during the trajectory, to be provided with a ratio of longitudinal velocity V over spin rate Ω

which is less than or equal to a limit value so as to ensure ground scanning in the observation direction at a sufficiently small pitch to enable a target to be detected.

2. A projectile according to claim 1, wherein said scanning means comprise a device enabling the spin rate of said payload to be increased at a given time during the trajectory and/or a device to ensure translational braking for said payload.

3. A projectile according to claim 2, wherein said device enabling the spin rate of said payload to be increased comprises at least one pyrotechnic booster whose direction of action is oriented such as to cause said payload to rotate around its axis.

4. A projectile according to claim 2, wherein said payload is integral with said projectile, which incorporates a braking and/or rotational device.

5. A projectile according to claim 1, wherein it incorporates timer means intended to trigger said scanning means at a certain time after said projectile has been fired.