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The Grumman XTBF-2 Avenger was a single prototype for a version of the aircraft powered by the 1,900hp Wright R-2600-10 engine.
The main problem with the Avenger dash-one was a lack of power. The 1,700hp Wright R-2600-8 engine struggled to lift fully loaded Avengers off the flight deck, but the most obvious alternative, the Pratt & Whitney R-2800, was restricted to fighter aircraft. Wright responded by producing the 1,900hp R-2600-10 and R-2600-20. Grumman produced one prototype of the dash 10 powered XTBF-2, based on TBF-1 BuNo.00393.
This aircraft made its maiden flight on 1 May 1942, but the type didn't enter production. Instead the dash 20 powered XTBF-3 was chosen, entering production with Eastern as the TBM-3, the most numerous version of the Avenger.