Yeoman dai
Whilst the Sopwith Camel served in greater numbers than some other aircraft its engine was either a 110 hp Le Rhone or a 130 hp Clerget rotary engine. The SE5A was powered by a 200 hp, 220 hp or 240 hp Hispano Suiza or a 200 hp Wolseley Viper engine. The Camel had a maximum speed of 118 mph whereas the SE5A had a maximum speed of 132 mph.
In addition, the exhaust fumes from the lubrication system of the Camel's rotary engine had such a deleterious effect on the physical processes of its Pilots that patrols were curtailed to enable the pilots to seek suitable toilet facilities.