We just ran out of the ability to control the airplane because of the shock wave which had formed on the thickest part of the horizontal stabilizer, the tail fin of the airplane. This formed at about .88 mach number, and as we increased our mach number, this shock wave moved back and laid down. And at .94 mach number, that shock wave was on the tail, at the hinge point of the elevator, and we lost our elevator effectiveness. And it had been predicted that the X-1 would either pitch up or pitch down in the region of the speed of sound and, obviously, this worried us a little bit. You know, we have no way out now, so we have to take a hard look at this. We looked, and we had never tried to fly the airplane with the horizontal stabilizer, we had always used the elevators. Now we’ve lost our elevators. The next thing to do was to go up and see if we can fly it with the horizontal stabilizer. The way we did that was we took the airplane out to .94 mach number, where we lost our elevator effectiveness, and we could change the angle of attack of the horizontal stabilizer through a compressed nitrogen, jackscrew air motor system. It gets pretty complex. I took the airplane out to .94 mach number, where I had lost the elevator effectiveness, and changed the angle of attack of the horizontal stabilizer down about one degree, and the old airplane pulled about 3 Gs in a turn. I re-trimmed it back, and I said, “That’s neat!”