The destructive pressure test has been completed and we hit our engineering numbers almost perfectly.
This test was testing for the worst possible conditions expected in flight. 2000 pounds of lead were loaded onto the seats to simulate the weight of the pilots multiplied by 6 Gs of acceleration. Then the pressure was increased to the maximum expected in flight: the fuselage held the strain. Then the pressure was increased to the safety blowoff-valve pressure: it still held.