In 1984, the Bell Advanced Tilt Rotor (or BAT) was a lightweight advanced, single seat, tilt-rotor aircraft proposed by Bell in response to the US Army's Light Helicopter Experimental programme (LHX) Development of the BAT had to be abandoned due to new LHX requirements, especially in the matter of weight (LHX had to be under 3150kg). The BAT was a small aircraft, with a butterfly tail unit, that would have had the following characteristics:

A.J.Pelletier "Bell Aircraft since 1935", 1992

Technical data for Bell BAT Take-off weight: 3620kg, maximum speed at 4270m: 563km/h, hover ceiling outside ground effect: 3050m, ferry range: 3890km, armament: 4 x Hellfire anti-tank missiles, 4 x Stinger air-to-air missiles

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