No, poppet, they worse

Oh, I really hope so.

any sort of internal combustion engine + volcanic dust = bad

Airships still use engines for moving; it's hot-air balloons that drift on currents, but that's not too productive.

We need hot-ash balloons! What could possibly go wrong?

[giggles]

just wishing for a slightly more reassuring way of flying later today. Oh well, fixed wing heavier than air, it is then

I'd think the dust could still inflict damage on any moving metallic parts