Do engines (R22) give noticeable warning signs just before failure?
Hi,
If the engine fails in an R22, the pilot has to react instantaneously to lower the collective in order to avoid complete rotor stall.
Would the pilot generally have some type of warning in advance that something is going wrong, so that they can at least somewhat reduce power before a complete failure? If so, are there situations (that happen in realistic numbers), where there is no warning whatsoever? I believe (more like hope) that there would be a warning, but I am not sure. How different are turbine engines?
Thanks a lot in advance!