Originally Posted by
That lights normal!
The pictures of “entering” and “finishing” the loop are a different helicopter from the film footage.
Yes, the one in film footage has wheel spats fitted, as with the still shot on the ground. The background in the other stills also suggests another location.
Is the manoeuvre really a loop? In the various film views it seems more like a 'torque turn' is performed at the apex? Not sure what name such a manoeuvre has?
The poster briefly seen in the video indicates 'Tommy' performed 10 of these 'loops' on the same day.
PS: Parent company of Sikorsky was still named United Aircraft Corp at the time, not United Technologies. The latter was only from 1975 onwards according to Wikipedia.