Between you and me, it was amazing those B25s launched from a carrier could get off the deck.
Why?
Mitchell and his men had cojones the size of bowling balls.
5.56mm
Not so much balls as careful engineering, and practice. They did it because the knew they could do it.
There’s that famous film of Plane #16 about hitting the water in front of the “USS Hornet” before powering out. Allegedly that happened because Lt. Col. Doolittle wasn’t scheduled to fly but jumped into the pilot seat of Plane #1. Plane #1’s original pilot bumped the co-pilot from Plane #16. There was a problem with 2 command pilots running the same checklist and the flap position for Plane #16 did not get properly set for the takeoff. Not good. But there was just enough margin for error and the left-seat pilot kept his cool.