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The Lupin III has ramjets but is an autogiro.
The ramjets won't do anything until the blades are spinning, so it cannot lift off vertically unless it has an engine that powers the main rotor while on the ground.
Once airborne the engine can no longer power the rotor as it has nothing to counteract the torque of the main rotor.
Autogyro operation or ramjets don't cause that kind of torque.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
Last edited by RedDevil; 01-16-2020 at 05:27 AM..
Reason: Substituted 'rotor' for 'lift blades'
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