Brake panel for a detonator or a projectile

Patent metadata

Field	Value
Publication number	US-9702675-B2
Application number	US-201314375997-A
Country	US
Kind code	B2
Filing date	Jan 28, 2013
Priority date	Feb 6, 2012
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

The invention relates to a brake panel ( 3, 3 ′) for a projectile ( 1 ), in which those surfaces (A) of the brake panel ( 3, 3 ′) which are facing in the direction of travel of the projectile are wholly or partially angled in such a way that the normal from the said surfaces (A) is not parallel with the center line (C) of the projectile ( 1 ) in order to reduce or counteract the Magnus torque generated during and after the extension of the brake panel ( 3, 3 ′). The invention further relates to a detonator ( 2 ) for a projectile ( 1 ) and a projectile ( 1 ) comprising such a brake panel.

First claim

The invention claimed is:

1. A brake panel as part of a projectile, which projectile is for firing from a launcher, wherein those surfaces of the brake panel which are facing in the direction of travel of the projectile are angled in such a way that the normal from the said surfaces (A) is not parallel with the centre line (C) of the projectile, and that the rear side of the brake panel, situated opposite to the direction of travel of the projectile, is flatly configured with a normal from the surface having the same angulation as the centre line of the projectile.

2. The brake panel according to claim 1 , wherein an angulation of the normal from that surface (A) of the brake panel which is facing in the direction of travel is in the order of magnitude of 1 degree relative to the centre line (C) of the projectile.

3. The brake panel according to claim 2 , wherein an angulation of those surfaces (A) of the brake panel which are facing in the direction of travel of the projectile is variably adjustable relative to the centre line (C) of the projectile.

4. The brake panel according to claim 1 , wherein an angulation of those surfaces (A) of the brake panel which are facing in the direction of travel of the projectile is variably adjustable relative to the centre line (C) of the projectile.

5. A projectile comprising a detonator having one or more extensible brake panels, which projectile is for firing from a launcher, wherein those surfaces (A) of the brake panel which are facing in the direction of travel of the projectile are angled in such a way that the normal from the said surfaces (A) is not parallel with the centre line (C) of the projectile, and that the rear side of the brake panel, situated opposite to the direction of travel of the projectile, is flatly configured with a normal from the surface having the same angulation as the centre line (C) of the projectile.

6. The projectile comprising a detonator having one or more extensible brake panels according to claim 5 wherein the angulation of the normal from that surface of the brake panel which is facing in the direction of travel is in the order of magnitude of 1 degree relative to the centre line (C) of the projectile.

7. The projectile comprising a detonator having one or more extensible brake panels according to claim 5 wherein the angulation of those surfaces of the brake panel which are facing in the direction of travel of the projectile is variably adjustable relative to the centre line (C) of the projectile.

8. A projectile for firing from a launcher, which projectile comprises one or more extensible brake panels, those surfaces (A) of the brake panels which are facing in the direction of travel of the projectile are angled in such a way that the normal from the said surfaces (A) is not parallel with the centre line (C) of the projectile, and that the rear side of the brake panel, situated opposite to the direction of travel of the projectile, is flatly configured with a normal from the surface having the same angulation as the centre line (C) of the projectile.

9. The projectile according to claim 8 , wherein the number of brake panels is two or four or six or eight.

10. The projectile according to claim 9 , wherein the brake panel is variably adjustable between the fully extended state and the wholly retracted state.

11. The projectile according to claim 8 , wherein the number of brake panels is one or three or five or seven.

12. The projectile according to claim 11 , wherein the brake panel is variably adjustable between the fully extended state and the wholly retracted state.

Assignees

• Bae Systems Bofors Ab

Inventors

• Pettersson Thomas

Classifications

• F42B10/50 Primary

  Brake flaps {, e.g. inflatable} · CPC title

• F42C19/02

  Fuze bodies; Fuze housings · CPC title