Several years ago I saw the B-29, FiFi. I saw it land and when it was parked, they sold tickets for you to climb up and walk through. That was quite a treat. I have walked through several B-17s over the years but never flew on any.
Walked through a B17 once at an air show. When I got just aft of the cockpit, I stretched my arms out and I was close to touching left and right side of interior of fuselage.at same time. I’m a below average height guy. Those aviators were brave....flying way up there in a freezing thin metal tube....thinking you could get killed or shot down without warning. Very humbling for me. Utmost, to the max, respect for those guys.