С тримерами из пикирования выходили в RL.
Вот мужик из нашего сквада (настоящий пилот Хелкета в конце 40х, начале 50х) расказывает:

I have "Blacked Out" seriously 3 times in 11 years of combat, conventional and Jet, aircraft flying. Once you got the "Hang of it" you could fly up to the edge of blackout just like you fly up to the edge of a stall. In fact it is easier with Blackout! Many times you would fly on the edge of both, in fact most times. As blackout comes on you know already that it is approaching because you are being squeezed down into the seat by the G-Forces, so you anticipate Blackout at about 4.5 G. The first signs that I received (And conversations with Squadron mates and Aviation Physiologists confirm that these are common indications), vision "Closes in". You begin to see through a "pipe" about 2 feet in diameter. If you don't increase the G, you can hold the same circle of vision until your body strength gives out. As you increase the G , the pipe diameter is reduced. When it was down to where I could only see the Flight Instruments (about a 6 inch pipe), I would lessen the G by releasing the stick pressure. This assumes I had a pressing reason to hold this level of turn.
In one of our multiple Dive Bombing practices in the F6F-5, I got too steep and too fast , and too low. Pull out had to be hard or the ground would have been. I started to black out as the plane "mushed" to level, and I knew that I was "losing it". I reached down(with my left hand) and rolled in some Elevator trim to keep my nose up if I blacked out. I did, and it did! I woke up (actually) somewhat on my back, past the vertical, slightly disoriented, at about 5.000 feet (Bomb release was about 2100 feet). I rolled upright and blended back into the practice bombing pattern and continued to practice (not reccomended at the time, because after the first full black out , the next one occurs at a lower theshold).
4-6 G pullouts were common in the F6F-5 bombing pattern. One guy came back with a good 'ole Grumman F8F-2 with 12 G's recorded on his G meter. The Airplane was a "Strike", the elevator covering was mostly gone, but he landed the plane.
The G limit on the Grummans were 7 G's.