Baron Max: Sorry I missed this response from you- I didn't mean to ignore it. " I've talked to three airline pilots and one former US Navy combat pilot and they all agree that with only a little bit of training, the terrorists could have hit the buildings ....as they obviously did. I'd like to hear from the Navy combat pilot if you get a chance to speak with him/her again: How does he or she define "a little training"? "Just a little side note: One of the airline pilots said that the second plane to hit the towers seemed to be on instrument flight/auto pilot, and at the last minute saw that he was going to miss the tower, so he banked it viciously in order to hit it." That's completely impossible. The rates of turn of UAL93 far exceeded the capabilities of the autopilot. Autopilots must not (by certification and maintenance standards) be capable of maneuvering fast enough to surprise a crew that might mis-program it. At low speeds, they are limited to standard-rate (2 degrees/second). At maximum speed (and the S.Tower airplane was even faster on impact than the first) the limit is half Standard Rate. That's four minutes and more than 30 miles to turn a circle- very sedate. Riding in an airliner, you can feel when the autopilot/autothrottles are engaged if you pay close attention. There are only very fluid, slow changes of attitude and airspeed possible by design. They can be set up (by a pilot very familiar with the airplane) to fly a coupled instrument approach to an ILS (using ground-based guidance beams) with high accuracy. But not at over 500 knots: The Autopilot could never capture the (6-20 mile) final approach course and glideslope in time: The rates, damping, and anticipation aren't available with an autopilot. UAL93 was maneuvering HARD, and simply could not have been on autopilot. As to the bank angles on impact, this was consistent with both WTC attacks, and was more likely a deliberate technique to spread the fuel over more stories of the building- not a course correction. The fuel was the weapon, and they chose aircraft that were fueled for long flights. For a lower structure, the bank was deleted, and maximum kinetic impact was effected at ground level. To me the Pentagon attack was the most amazing one for the skill required. But all were astounding. When I transition pilots into faster airplanes, they are never... NEVER are able to land with accuracy. The 9-11 pilots were making the most extreme transition imagineable , if we are to believe that they graduated from light piston civilian trainers to heavy jets with such alacrity. According to the government story, this was the very first time these pilots had handled a jet aircraft. That's impossible. I challenge you to show this thread to your pilot friends, and let them respond directly, Baron.