It’s still simpler and cheaper. The swashplate is much simpler. Much less power is fed to the main rotor as inertia is built up slowly and only for take off. The lower standard of reliability as worst that happens is you don’t take off. Engines are pushing a more forgiving higher speed prop, so engines and fuel are cheaper.
I don’t know how marginal jumpstarts are, possibly very, which would limit the utility. Especially where there is a runway nearby.
I don’t know how marginal jumpstarts are, possibly very, which would limit the utility. Especially where there is a runway nearby.