First flown on 1 August 1941, the three-seat Grumman TBF-1 Avenger torpedo-bomber entered United States Navy service simply over time to take part in the Battle of Midway in June 1942. During its World War II lifespan, the Avenger design changed almost no, and also this permitted it to be integrated huge amounts. Demand for the airplane ended up being so great that the General Motors Company was also contracted to build it, underneath the designation TBM-1, from September 1942. Over 1,000 TBF/TBMs (designated Avenger Mk we) were additionally utilized by the Royal Navy's Fleet Air supply both in Atlantic and Pacific theaters. The Avenger was additionally used by the Royal brand new Zealand Air Force. The next major variation was the TBM-3, which featured strengthened wings to permit rockets and radar pods to be carried.