DR.400-125 DR.400-120 with a 125hp Lycoming O-235-F engine DR.400-140 Earl DR.300-140 with forward-sliding canopy DR.400-140B Major 80 DR.400-140 with a 160hp Lycoming O-320-D2A DR.400-160 Chevalier Original designation for the DR.400-140B DR.400-180 Regent DR.300-180 with forward-sliding canopy, later models have extra cabin windows.