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In neutral, the propeller shaft is not engaged with any other part of the motor so the prop will spin freely. You'll often see this when a boat is being towed down the highway - the prop is spinning the same as a windmill does in the wind. It's best to let it spin cause if you put the motor in gear and the prop hits something, such as your driveway while you're going in or out of your yard, there is no give and you could damage your prop or worse, the gears inside.
Do you mean that they spin when the back end is jacked up? If so, don't worry about it... it's normal.
From the pilot's point of view in the front seat of a Piper J-3 Cub, the prop spins clockwise (right).
No, it would spin around and not land properly.
The answer may depend of what you mean by a "neutral star". That is an expression which is not recognised.
They do not always "crash" in this manner. although when they do, it is mainly due the instabilization of the tail prop. ============================================================ if the tail prop is not spining the rotation of the main rotor will force the helicopter to spin in the opposite direction, by air drag, the tail counterbalances this force.
The word revolve (to go around, as in circles) can mean to turn, spin, or rotate. (*For planets, "revolve" is used to mean orbiting around a larger body, while "rotate" is used for the spin of the body itself.)
Most tornadoes in the northern hemisphere spin counter clockwise while most in the southern hemisphere spin clockwise.
When a skateboarder refers to a 900, they are referring to an aerial spin. It is performing a spin with two and a half rotations while on their skateboard. It is one of the hardest tricks a skateboarder can perform.
Neutron is electrically neutral... But it posses a spin... And when it moves it has a finite kinetic energy...
Neutron is electrically neutral... But it posses a spin... And when it moves it has a finite kinetic energy...
Nothing. Perhaps you mean "spin a YARN," which means to tell a story.