Good god! Some people REALLY need to learn how a helicopters rotor, main gearbox and engines actually work.
Trust me, as someone who used to work on the bloody things, NO it could not obtain lift and take off.
A choppers rotors run at one constant RPM controlled by the gearbox, the engines will increase/decrease torque when drag is applied to the rotor head and therefore the blades as the blade pitch changes during flight, but the system remains and a constant RPM. Over torque the system and bad things happen.
The engines, gearbox and rotors are physically fixed to the body (actually the other way around but the result is the same). The only clutch in the system is to allow the engines to run up to operating RPM before engaging the rotors (and not all helicopters have one).
As all the RPM sensors are measuring rotor RPM relative to the aircraft (as they are in the aircraft it's the only way they can measure it) it doesn't matter if the aircraft fuselage is rotating at 0 RPM or 1,000,000,000 RPM, the rotors will only spin at their design RPM relative to the aircraft body and the drive train contained therein.
As it's the speed of the blades through the air that produces lift (no different to a fixed wing aircraft) if the blades are not moving relative to the air at the correct RPM the aircraft cannot fly.
Piston engine powered toy helicopter or turboshaft powered merlin, it doesn't matter. The best analogy is the electric motor one mentioned above, think of the motors drive spindle as the rotor head and everything below that point as the rest of the drivetrain & power plants.
Any force imparted on to the fuselage of the aircraft is also imparted on to the rotors in reality, as the system cannot spin up to an infinite RPM. IF we were in a theoretical world were they could, then yes the aircraft could take off, but as we live in this world it couldn't.
This is very much NOT the same as a plane on a conveyor belt. It is in fact the opposite.
Trust me, as someone who used to work on the bloody things, NO it could not obtain lift and take off.
A choppers rotors run at one constant RPM controlled by the gearbox, the engines will increase/decrease torque when drag is applied to the rotor head and therefore the blades as the blade pitch changes during flight, but the system remains and a constant RPM. Over torque the system and bad things happen.
The engines, gearbox and rotors are physically fixed to the body (actually the other way around but the result is the same). The only clutch in the system is to allow the engines to run up to operating RPM before engaging the rotors (and not all helicopters have one).
As all the RPM sensors are measuring rotor RPM relative to the aircraft (as they are in the aircraft it's the only way they can measure it) it doesn't matter if the aircraft fuselage is rotating at 0 RPM or 1,000,000,000 RPM, the rotors will only spin at their design RPM relative to the aircraft body and the drive train contained therein.
As it's the speed of the blades through the air that produces lift (no different to a fixed wing aircraft) if the blades are not moving relative to the air at the correct RPM the aircraft cannot fly.
Piston engine powered toy helicopter or turboshaft powered merlin, it doesn't matter. The best analogy is the electric motor one mentioned above, think of the motors drive spindle as the rotor head and everything below that point as the rest of the drivetrain & power plants.
Any force imparted on to the fuselage of the aircraft is also imparted on to the rotors in reality, as the system cannot spin up to an infinite RPM. IF we were in a theoretical world were they could, then yes the aircraft could take off, but as we live in this world it couldn't.
This is very much NOT the same as a plane on a conveyor belt. It is in fact the opposite.