Only a small number of aircraft were fitted with the R4M, mostly Messerschmitt Me 262s and the ground attack version of the Fw 190s, which mounted them on small wooden racks under the wings.
On one occasion, a Me 163A was fitted with several R4M rockets, and this setup was tested for several weeks in 1944, without incident.
This was the first time a rocket propelled aircraft has had rocket propelled armament.

The Luftwaffe found the R4M missiles to have a similar trajectory to the 30 mm MK 108 cannon's rounds in flight, so the standard Revi 16B gunsight could be utilized.
Only a small number of aircraft were fitted with the R4M, mostly Messerschmitt Me 262s and the ground attack version of the Fw 190s, which mounted them on small wooden racks under the wings. On one occasion, a Me 163A was fitted with several R4M rockets, and this setup was tested for several weeks in 1944, without incident. This was the first time a rocket propelled aircraft has had rocket propelled armament.
The Luftwaffe found the R4M missiles to have a similar trajectory to the 30 mm MK 108 cannon's rounds in flight, so the standard Revi 16B gunsight could be utilized.
R4M