First flown on 1 August 1941, the three-seat Grumman TBF-1 Avenger torpedo-bomber entered united states Navy solution just in the end become a part of the Battle of Midway in June 1942. During its World War II lifespan, the Avenger design changed very little, and also this permitted it to be integrated large sums. Interest in the airplane ended up being therefore exemplary that the General Motors business was also contracted to produce it, beneath the designation TBM-1, from September 1942. Over 1,000 TBF/TBMs (designated Avenger Mk we) were furthermore utilized by the Royal Navy's Fleet Air supply both in Atlantic and Pacific theaters. The Avenger wound up being moreover utilized by the Royal new Zealand Air Force. Another major variation had been the TBM-3, which showcased strengthened wings enabling rockets and radar pods become carried.