If jp had been airborne in the B-17 when that happened, the Speeder would have become a small incendiary bomb very quickly, I think.
(Off-topic- In 1944 my father threw a Kodak aerial camera overboard from a B-17, in a futile effort to lighten ship; with two engines shot out they ditched in the North Sea and were picked up by the Royal Navy.)

In 1991 I burnt a 3/8" long hole in my Leica M3's shutter, the same way- left it on a table in the sun for a while without the lens cap. Didn't start a fire, and I didn't find out until I processed the roll of film. I still have that shutter curtain somewhere... a very expensive small piece of cloth.

jp, I'd love to see any pictures you have from that day.