Could large non-turbine aircraft be much more fuel efficient than current jet / turboprop transports?


large non-turbine (prop) aircraft common during wwii , short time after. advances in materials , design make non-turbine transport aircraft practical?

understand there lot of consumer resistance, , practical factors ( lower speed being 1 ) might prevent it, curious how fuel saved designed non-turbine transport aircraft?

efficency tradeoffs payload, speed, size limits, maintenance ?
these tradeoffs ever make sense if fuel prices rocketed?

large non-turbine (prop) aircraft common during wwii , short time after. advances in materials , design make non-turbine transport aircraft practical? understand there lot of consumer resistance, , practical factors ( lower speed being 1 ) might prevent it, was...


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