I've met and heard stories from several dozen WWII pilots thanks to The Museum of Flight in Seattle, which has panel discussions of WWII pilots every few months. I've been lucky enough to meet and hear guys who have flown P-51's, P-47's, P-38's, P-40's, P-39's, F4U's, F6F's, TBM's, SBD's, B-17's, B-24's, B-25's, B-29's, Spitfires, Mosquitoes; guys who flew in ETO, PTO, CBI, MTO, a guy who flew in 303 Sqn at the end of Battle of Britain; guys who survived kamikazee attacks on carriers (such as the USS Bunker Hill); guys who survived getting shot down; guys who shot down an Me 262's; a guy who shot down one of the leading German night-fighter aces; a guy who flew in the Battle of Midway. From among all of that are many amazing stories, some known to more people because there are books (such as by Bud Anderson), but a lot of stories that are only known to people lucky enough to hear the stories.
I'll tell a couple from the many.
------------------
One is a story from a B-17 pilot, and I apologize that I don't remember his name. He was on a bombing mission over Germany, near the target, when there was a loud explosion, and his cockpit was instantly filled with condensation vapor thick enough so that he couldn't see. The vapor cleared after a moment, but the blast (a flak hit) had knocked the bomber up into a steep climb, from which it stalled out (sort of like a hammerhead), and then went into a spin. He checked the controls, which seemed to be working, and managed to get the plane out of the spin and back into level flight. The controls and the engines still seemed to be working, so he continued on to target to release bombs, then turned the plane around.
Once on a heading back toward home, he got up to go survey the damage. A flak round had scored a direct hit on the B-17, exploding in the radio compartment directly behind the cockpit. There were no personnel in there anymore, and large portions of the fuselage were completely blown out. There was blood and meat all over in the compartment. Continuing back, the rest of the plane and crew were OK.
Since the plane amazingly still seemed flyable, they continued on a path back home. They weren't with the rest of the squadron at that point, as a result of being knocked out of formation, and their airspeed was lower now because of the damage. On the way back, they got jumped by German fighters and had a running battle with several over a period of about half an hour. More crew were injured, and some engines were knocked out, but they were able to survive the attacks and make it to the Channel, where they ditched and got picked up by rescue boats.
There were two crew members in the radio compartment at the time of the flak hit, of course assumed to be dead. However, a month or two later, they got a letter from one of them (the radioman) from a POW camp, and that crewman told his story. The radioman said that, as the flak was getting heavier, he had been reaching for his parachute to put it on, and the next thing he remembered was waking up falling through the air -- with his parachute pack still grasped in one hand. He buckled on his parachute, pulled the cord, drifted down into a farmer's field, and was captured. He had injuries, but none that were life threatening.
-------------------------------
People usually think of the danger of being a fighter pilot as being the aerial combat or getting shot at by flak. But weather was as deadly (perhaps even more deadly). A couple weeks ago, I heard Abner Aust tell his stories of flying out of Iwo Jima, flying to Japan, having dogfights over Japan that would take him all the way down to the deck, then back up and fly all the way back to Iwo.
On the way out to Japan, the P-51's would form up on a single B-29 navigation plane, that would lead them to Japan. These B-29's were especially helpful if there was bad weather on route. On one occasion, Aust was with about 30 other P-51's formed up on a B-29 when they hit a dense area of thunderclouds that went up to about 40,000 ft. The conditions were so bad that most of the P-51's lost contact with the B-29. Of those approx. 30 P-51's, 27 went down, and of those, only 2-3 pilots were retrieved in their rafts from the ocean. So, here was a squadron of P-51's that suffered horrific losses that day -- almost all of its planes -- as a result of weather.