There are guys with flamethrowers, not because they would be useful at an archaeological dig site, but because carrying a bunch of
flamethrower fuel means they'll blow up very nicely.
With FIDO operational, Guy worked on a number of different projects, including research on the efficiency of
fuel cells, research on German aviation
fuel as inferred from the spectrographic analysis of aircraft exhaust, not to mention the design and testing of
fuel baffles, experimental forest - clearing devices, and
fuel propellant systems (including
flamethrowers — an application the pacifically - minded Guy must have disliked.)