Originally Posted by
India Four Two
I was bored and so I did a physics refresher. I timed the 10 fastest rotations to take about 8 seconds, so a period of 0.8 seconds. Assuming a 1.6 m patient, the maximum G force at her head would be about 0.6 .
That is equivalent to a continuous bunt of -0.6 G. Unpleasant but probably not red-out inducing. Probably more concerning would be the fear brought on by seeing the helicopter rotating over your head at more than once per second! I think I would close my eyes.
My quick calculation it's closer to 6.5g's assuming 1.8m patient at your calculated 85rpm