6 ms·I imagine speed and simplicity. There’s a lot more things that need maintenance on a piston engineby zakary 2y agoI imagine speed and simplicity. There’s a lot more things that need maintenance on a piston enginejcgrillo 2y agoSimplest could be a pulse jet like the V1 used, and capable of higher speeds than a piston engine fan or propeller driven aircraft.jojobas 2y agoMaintenance? It works for <10 hours and explodes.