There was a good series of photographs in the 78 (Wessex) Sqn scrapbook which may still exist on 78 (Merlin).
They date from Aden (before my time!!) and seemed to have been printed from a cine film, as they were effectively a time-lapse sequence - of the lift (briefly) of a Scout.
Apparently the Wessex lost an engine in the transition with the Scout - overpitched and quite scary coning angle clearly visible - then Scout "pickled" and disappears from bottom of frame over 2 or 3 pictures as Wessex flies away. Cat 2 Scout becomes Cat 5 Scout!
Pilot alleged to be R****e B*****n?