I visted the Spruce Goose when it was on display in Long Beach, CA, they had a cutaway engine( 28 cylinder corncob radial) on display and was amazed by it The first thing that came into my mind was I'm glad I was never a crewcheif on a airplane that used those motors, epsecially when the flight engineer came in to the hangar and said #4 has a miss in it
I was told by a old time B36 crewcheif that they would swap those motors out in a case like that and then work on them on a engine stand, not on the airplane