A rocket-powered small aircraft with straight, constant-chord wings, the aircraft was to be towed or carried aloft by another aircraft and released when near enemy bombers.[1] Igniting a Schmidding 533 solid-fuel rocket engine, it was to make a first attacking pass using the 14 nose-mounted R4M 55 mm rockets, before attempting to ram the enemy bomber's wings or tail.[2][3] The aircraft was expected to survive the ramming of the bomber, owing to the strength of its wing which had a steel leading edge. It would have landed on a retractable skid.[4]