The Martinsyde G.100 "Elephant" and the G.102 were British fighter bomber aircraft of the First World War built by Martinsyde. The type gained the name "Elephant" from its relatively large size and lack of manoeuvrability. The G.102 differed from the G.100 only in having a more powerful engine.
Martinsyde G.100
Martinsyde was a British aircraft and motorcycle manufacturer between 1908 and 1922, when it was forced into liquidation by a factory fire.
Martinsyde motorcycle, 1922, model C, 498 cc
11 May 1922, Motor Cycle magazine features new Martinsyde Quick Six
Martin-Handasyde No.4B Dragonfly, 1911 at Brooklands