Propellers are not better than flapping wings or fins. Machines use them because they’re easier to build and drive.
Are you saying it is possible to construct a flying machine utilizing wings that would compete with a jet fighter in speed and fuel-efficiency?
[I would doubt it]
Propellers are not better than flapping wings or fins. Machines use them because they’re easier to build and drive.
Are you saying it is possible to construct a flying machine utilizing wings that would compete with a jet fighter in speed and fuel-efficiency?
[I would doubt it]