Below is a video recorded at 200 fps which suggests the accuracy of the attack could not have been achieved by inexperienced pilots.

The following is commentary from YouTube that accompanies the above clip.

In the days after 9/11, numerous pilots and aviation experts commented on the elaborate maneuvers performed by the aircraft in the terrorist attacks, and the advanced skills that would have been necessary to navigate those aircraft into their targets. The men flying the planes must have been “highly skilled pilots” and “extremely knowledgeable and capable aviators,” who were “probably military trained,” these experts said.

And yet the four alleged hijackers who were supposedly flying the aircraft were amateur pilots, who had learned to fly in small propeller planes, and were described by their instructors as having had only “average” or even “very poor” piloting skills. But on their first attempt at flying jet aircraft, on September 11, 2001, these men were supposedly able to fly Boeing 757s and 767s at altitudes of tens of thousands of feet, without any assistance from air traffic control. Three of them were apparently able to successfully navigate their planes all the way to the intended targets, which they hit with pinpoint accuracy.