In all four cases, the helicopters crashed as they were lifting off, caused by a failure of a clutch mechanism that connects engines to the helicopter's five main rotors, attorneys for the pilots and their families argued in courts in Oregon, Tennessee and British Columbia.
*Sigh.*
Can't journos fact check and get their terms straight?
Rotor blades, of which an S-61 has five, are part of the main rotor(or main rotor assembly) of which the S-61 has one.
Their profession is words, and they can't get the words right.
Aside: sprag clutch failure?
