I saw a video of one of these on Facebook and then found this via Google. The EX 22 is a mine clearing rocket that features canted tractor motors and is mostly finless. In HPR, head-end ignition is a thing. This rocket features the more standard tail-end ignition...except the nozzles are on the head-end. So, this is like a flying head-end ignited HPR motor with a nozzle assembly that points in the wrong (opposite) direction? Push me pull you!