Colgate-Larsen Aircraft Corporation succeeded Spencer-
Larsen Aircraft Corporation around 1940, continuing
its work at Amityville, Long Island, NY, on novel-design
small four-seat amphibian flying-boat, the CL-15 (formerly
SL-15). From 1941 engaged on subcontract work for other military aircraft building programs, especially after U.S.
entry into Second World War.
