Again Sultan......same sound systems, same location, same distance from the sound sensors?
No.....thus apples and oranges as to being an empirical test.
Now tell us again how it is only a caution light that comes on after a failure of the I-Shafts? How does that work?
If Ali Taliban smacks an RPG into the engine nacelle of an Osprey....and takes out one end of the I-Shaft and the ass end of the engine at the same time...and the Osprey is at three hundred feet AGL and say fifty knots....thus rendering the aircraft OEI and no I-Shaft....how does the Pilot handle that situation?
An excerpt from an Aviation Technical Magazine article about the Osprey....
Traditionally, autorotation is a required air-worthiness capability for military rotorcraft. High rotor disk loading and low rotor inertia places V-22 well outside the nominal autorotation envelope of existing rotorcraft. Basic rotorcraft engineering analysis indicates that the V-22 will have a difficult time achieving a stable autorotation following a sudden power failure at high power setting, and that the probability of a successful autorotational landing from a stable autorotative descent is very low.
Seems to be pretty much like a Chinook at the same point, speed, and all when an RPG takes out the Synch shaft is it not?