The 1,100-pound bomb has been replaced by the 1,000- pound GP bomb, but it may still be found in service. It is identified by the rear closing cap and it has only two Army suspension lugs 14 inches apart.
It is used on the same targets as the 1,000-pound GP bombs. These targets are reinforced concrete and heavy steel bridges, large reinforced buildings ,light armored seacraft, reinforced docks, and warehouses.
The filler is 50/50 Amatol (588 lb, 267.3 kg) or TNT (613 lb, 278.6 kg).
Nothing else to see.
OP 1664, Volume 2 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)
TM 9-1904, Ammunition Inspection Guide (1944)