[4] Allied troops nicknamed it Screaming Mimi and Moaning Minnie due to its distinctive sound.

These offered the opportunity for the Nebeltruppen to deliver large quantities of poison gas or smoke simultaneously.

The first weapon to be delivered to the troops was the 15 cm Nebelwerfer 41 in 1940, after the Battle of France, a purpose-designed rocket with gas, smoke, and high-explosive warheads.

[6] Like virtually all German rocket designs, 15 cm Wurfgranate 41 projectiles were spin-stabilized to increase accuracy.

The motor consisted of seven sticks of solid-fuel propellant and the exhaust ring had twenty-six venturis that were drilled at a 14° angle to impart spin.