The Martin-Baker M.B.2 in its definitive form with orthodox tail surfaces.

The Martin-Baker M.B.5 was viewed by many as representing the peak of piston-engined single-seat fighter development.

The G.102 higher-powered version of the Martinsyde Elephant which succeeded the G.100.

The initial production version of the Martinsyde Elephant, the G.100.

The Martin-Baker M.B.3, only one prototype of which was completed and this was flown for less than two weeks.

The Martinsyde R.G. which, in some respects, was an evolutionary development of the Elephant and was discontinued in favour of the F.3 Buzzard.