[.041 Safety Wire]

Maximum allowable gross weight. All up weight with fuel and payload. Another reason for the removal of the remote stations was it allowed them to incorporate another fuel bladder in aft bomb bay so they had a little more cushion to account for winds aloft. And of course they probably had to deal with some density altitude problems though I do not know what average temps are on the island. I was fortunate enough to spend time with most of the Enola Gay crew on several occasions and spoke quite a bit about this mission. Most of my reference comes from NASM as I worked there for 30 years. of which 13 were spent with the Enola Gay. You can find any number of different ceilings from 31,500 to 36,000 ft most likely as the maximum allowable gross weight was increased to over 140,000 lbs the ceiling was derated.