The question of upper body strength requirements was posed back in Post #26 on 29th September. The question remains unanswered. I looked up the Bournemouth jet pack demo and found this video:
Apparently two jet pack fliers were involved in the demo, one of which, hits the drink at 20 seconds into the 40 second video. I've looked at other discussions of the video, and some of them fail to mention the unplanned dunking and otherwise ignore details of the "demonstration".
In this age of all too realistic CGI, I'm afraid that I'm a bit of Doubting Thomas with respect to all of this. Has anyone seen technical/engineering details of the design of these jetpacks? It would be interesting to see how the thrust is divided among the 5 jet engines, and how thrust control is managed ... among other details.
Cheers,
Grog