An Aero L-29 Delfín’s max G limits are +8 / -4 . Those are less than what someone with a G-suit can sustain without losing consciousness, nevermind dying from it. Heck, there are roller coasters that top 6 G’s.
Even modern aircraft will generally come apart before the pilot experiences lethal G’s.
Prayers for all involved; I hope the pilot carried appropriate life insurance. Let’s face it, racing a jet through tight corners isn’t exactly at the top of the list of safe occupations.
Yes, that would be for a healthy young pilot.
They did not release the name or age of the pilot, but I will go out on a limb and suggest he was in his 40’s or 50’s.
If so, he might have had the common ailments of American middle age, high blood pressure and atherosclerosis...............
Of course it could have been a spectacular suicide as well...............
IMO, if you are close to the ground at high speed, and in a sharp turn, any G’s that cause you to pass out are “lethal” G’s.