Technological Design Engineering

Because of the long lifespan of helicopters, all components need to be replaceable. For safety reasons, fasteners should not shake loose...

Because of lack of data, approximations were used for the blade mass and center of gravity. Source: http://en.wikipedia.org/wiki/Robinso...

 The three main forces acting on a rotor blade are the lift force, the drag force, and the centrifugal force. Lift is the upward force cause...

The top picture shows the location of the PTFE plain bearings (shown in red) and the bolts which are used to attach the teetering hinge to...