Originally Posted by
SASless
But the 225 was the greatest thing since sliced bread according to some at Bristow....far better machine than the very inferior 92 as some told us at great length.
So what's exactly your point?
(Apart from showing again that you are a dyed in the wool Sikorsky admirer?)
Any new findings?
Any sign that the early Gearbox changes of the original 4 - blade Puma family had any failure path similarities with the problem in the 225?
Wear and internal cracking are totally different beasts. The 225 didn't (literally) lose its head due to simple wear.
Reducing torque wouldn't have necessarily prevented the cracking. The level of vibration isn't a linear function of torque. It is a complex function of multiple variables and there will often be vibration spikes at lower torque levels.