Fantastic piece of British technology.
No problems with social distancing.
Just imagine BLM/Antifa all arriving in a city centre kitted out with these bad boys.
Impressing pictures but how long is one flight? 10 - 20 seconds? 30 seconds?
And Christmas? ... Hmmm .... Christmas ...
Hmm your right, I shouldn't think it would be more than a few minutes.
I suppose you could stick to the roads and have a mini petrol tanker follow you with a line connected to the rocket pack. Or you could have heavy duty drones above you carrying a large petrol can connected. Should think rockets will be very thirsty.
Maybe I will just wait for the all electric version.