The Up and Down Mechanism

The motors, power supply, and gear assembly, are mounted on a Geared Roller Bearing, PN167. Although the original Jet Plane Ride had eight arms, and resembled its predecessor the Octopus, I could only manage to squeeze in four. I faked the autonomy of the other two arms by a simple mono filament fishing wire and pulley system. Hopefully not everyone will notice it. The up and down mechanism is shown here.