 we were reduced for a time to the expedient of salvaging [oil-well casing] from abandoned oil wells.”

Jack Latimer
The "Tiny Tim's" diameter of 11.75 in (29.8 cm) was the first Allied aerial rocket to have a larger calibre than the Luftwaffe-deployed bomber destroyer aerial rocket ordnance, the "Nebelwerfer"-based BR 21 of 21 cm (8-1/4 in) calibre.The Tiny Tim's large diameter allowed a sizable 148.5 lb (67.4 kg) semi-armor-piercing high-explosive warhead, some 60 lbs (27 kg) heavier than the BR 21's 40.8 kg (90 lb) warhead.The Tiny Tim had a maximum range of 1,500 meters (1,640 yards), some 200 meters greater than the BR 21's time-fuze limited 1.2 km detonation range from launch.