Video got me fired up - What to fly?

[Crumpp]

The first tanks they used were made of plywood, prone to leaking and also had a suspected tendency to self ignite.

The USAAF's were made of paper and all tanks on any airplane leak quite bit.

Its normal, in fact you have to be careful as some airplanes will go a step farther and siphon right out the vent tubes if your not careful.

also had a suspected tendency to self ignite.

Interesting, Do you have a source on this?

If the fueler did not ground the airplane properly then any aircraft tank can ignite when fueled.