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Has anyone ever heard of an R22 engine overspeed that was between 110 & 116%, but left the rotor below 110% (split needles)? Can belts normally slip like that with a sudden increase in throttle/torque or A> There is an issue with the belt tension settings B> The flight crew's perception/interpretation of the tachs was incorrect C> Something else? If it was A> is there anything you could detect on a preflight or on engine run-up (blades taking more than 5 seconds to turn etc?) Regards
I designed this helicopter "RPM" logo after spending far too long looking at the rotor and engine tachometer instrument in the Robinson R22 helicopter. It is a subtle, but cool reference to R22 helicopters and being an R22 heli pilot. Check out my new RPM Logo stores out: http://www.zazzle.com/rpmlogo and http://www.cafepress.com/rpmlogo