I visited the Australian War Memorial on Thursday and watched a film montage by Peter Jackson of replica S.E. 5s on a big screen...
In one scene the pilot is vigorously cranking a small wheel on the starboard side of the fuselage while the ground crew are attempting to spin the prop. Had a google looking at S.E 5 images and this is the best I could find but I'm not sure if it's the same in the film...
Just thought someone might know what that small "wheel" is for.
Cheers.
Graeme.