Originally Posted by 118.9
It leaves me wondering if there was a brief incapacitation of the pilot at the apex?
If you are going to have a g induced incapacitation, it would have occurred approaching the 90 degree nose up point. After that, the g level would be too low until the g begins to build on the pull out.
From personal experience, if you lose your vision at high g, it might take up to 15 seconds at low g to regain the center of your visual field.
At high g, your visual field collapses to a narrow tunnel and if you maintain the g, whatever is visible in the tunnel fades away. At slightly higher g, your brain will fade away.
Due to internal pressure in the eye, it takes slightly more blood pressure to supply the eye than the brain.
The art of maintaining blood pressure in the head is learned during exposure to high g. Tensing muscles in the legs and abdomen, and proper use of the diaphragm is critical in maintaining performance at high g.
If a person were to begin a maneuver with lower than normal blood pressure or while experiencing some other physiological event (like the aftermath of a 2 doughnut breakfast) then their performance at g may be substandard.
Aerobatics in jets can generate very high g loads and the g can be prolonged much more so than in propeller driven aircraft.
Once the g gets up to 4 g, the possibility of adverse physiological events becomes very significant. To repeat a question I asked earlier, was a g suit being used?
