Explosive round countermeasure system
View Patent ↗A countermeasure system which is capable of defusing rocket propelled grenades (RPG) is provided by spacing an array of explosive charges or primacord from the protected structure to allow and sense an ogive of the fused RPG to enter into a functional plane of the array initiating one or more of the charges to collapse to ogive. The array is supported flexibly or rigidly and further ballistic protection is incorporated behind the array in fixed or inflatable forms to provide protection of the structure from the explosive products from the array and the ballistic impact of the defused RPG.
1. An explosive round countermeasure system comprising:
an array of charges carried in spaced relation to a structure to be protected by an inflatable bag;
launch detection means for detecting an incoming explosive round to determine the velocity and point of impact of the explosive round for inflation of the inflatable bag;
sensing means supported by the inflatable bag for sensing an incoming explosive round having a nose mounted fuse structure; and,
detonating means supported by the inflatable bag and connected to the array of charges for detonating at least one of the charges in the array responsive to the sensing means such that the detonation is timed for placement of the nose mounted fuse structure adjacent the at least one of the charges.
2. A countermeasure system as defined in claim 1 wherein the sensing means comprises a break screen supported by the inflatable bag substantially parallel to and proximate the array.
3. A countermeasure system as defined in claim 1 further comprising a shock absorbing impact surface intermediate the array of charges and the structure to be protected.
4. A countermeasure system as defined in claim 1 further comprising a fire resistant barrier deployed with the inflatable airbag.
5. A countermeasure system as defined in claim 1 further wherein the inflatable bag employs CO2 for inflation.
6. A countermeasure system as defined in claim 1 wherein the launch detection means is a radar.