Medical testing has established that the maximum acceleration a pilot can be subjected to without losing consciousness

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Medical testing has established that the maximum acceleration a pilot can be subjected to without losing consciousness is approximately 5.0g if the axis of acceleration is aligned with the spine. A pilot can avoid “blackout” at accelerations up to approximately 9.0g by wearing special “G-suits” that help keep blood pressure in the brain at a sufficient level. 

(a) Assuming this to be the case, what is the minimum safe radius of curvature for an unprotected pilot flying an F-15 in a horizontal circular loop at 750 km/h? 

(b) What does this radius become if the pilot is wearing a G-suit?


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