The Wurfrahmen 40 ("launch frame 40", here in action against Polish positions during the Warsaw Uprising) was a German World War II multiple rocket launcher. It combined a vehicle such as the SdKfz 251 half-track or a captured ex-French Renault UE Chenillette with rocket artillery to form a more mobile and protected artillery piece than the towed Nebelwerfer. It was nicknamed Stuka zu Fuss ("Stuka on Foot" or "Walking Stuka") and Heulende Kuh ("Bellowing Cow").
V-3 Hockdruckpumpe, was a German World War II supergun working on the multi-charge principle whereby secondary propellant charges are fired to add velocity to a projectile. The weapon was planned to be used to bombard London from two large bunkers in the Pas-de-Calais region of northern France, but they were rendered unusable by Allied bombing raids before completion. Two similar guns were used to bombard Luxembourg from December 1944 to February 1945.