RPG defeat method and system
A vehicle and structure shield includes an array of hard points laterally spaced and outwardly supported, in one example, by a net subsystem and frame.
1. An RPG defeat method comprising:
laterally spacing hard points with respect to each other to dig into an RPG ogive and damage it so the RPG does not detonate, said hard points each weighing between 10 and 80 grams,
spacing said hard points outwardly from a hull between 4 centimeters and 60 centimeters, and
configuring said hard points to have a length, center of gravity and moment of inertia so the RPG ogive is damaged by rotation of the laterally and outwardly spaced hard points to dig into and dud the RPG ogive before the RPG ogive strikes the hull.
2. The method of claim 1 in which each hard point includes at least six sides and six sharp corners.
3. The method of claim 1 in which laterally spacing the hard points includes securing the hard points to the nodes of a net.
4. The method of claim 3 in which the net has a mesh size of between 110-180 mm and is made of net material having a breaking strength of less than 240 lb.
5. The method of claim 3 in which each hard point includes a base portion with a cavity receiving a net node therein and a post portion received in the cavity of the base portion locking the hard point at a net node.
6. The method of claim 5 in which the base portion cavity frictionally receives a post portion therein.
7. The method of claim 3 in which each hard point includes a wall with longitudinal slots therein for the net.
8. The method of claim 3 in which spacing the hard points sufficiently outwardly from a hull include attaching the net to a frame and connecting the frame to the hull in a spaced relationship therewith.
9. The method of claim 8 in which the frame includes telescoping members.
10. The method of claim 8 furthering including hook and loop type fasteners releasably securing the net to frame.
11. An RPG defeat system comprising:
laterally spaced hard points configured to dig into an RPG ogive and damage it so that the RPG does not detonate,
said hard points each weighing between 10 and 80 grams and spaced between 4 centimeters and 60 centimeters outwardly from a hull, and
said hard points having a length, center of gravity, and moment of inertia so the RPG ogive is damaged by rotation of the laterally and outwardly spaced hard points to dig into and dud the RPG ogive before the RPG ogive strikes the hull.
12. The system of claim 11 in which each hard point includes at least six sides and six sharp corners.
13. The system of claim 12 in which the net has a mesh size of between 110-180 mm and is made of net material having a breaking strength of less than 240 lb.
14. The system of claim 11 in which the hard points are secured to nodes of a net.
15. The system of claim 14 in which each hard point includes a base portion with a cavity receiving a net node therein and a post portion received in the cavity of the base portion locking the hard point at a net node.
16. The system of claim 15 in which the base portion cavity frictionally receives a post portion therein.
17. The system of claim 14 in which each hard point includes a wall with longitudinal slots therein for the net.
18. The system of claim 14 in which the net is attached to a frame and the frame is attached to the hull in a spaced relationship therewith.
19. The system of claim 18 in which the frame includes telescoping members.
20. The system of claim 18 further including hook and loop type fasteners releasably securing the net to frame.