Flight 77, the supposed plane that hit the Pentagon on 9/11 was a Boeing 757. It is the same plane that President Trump flies in.
A Boeing 757 uses one of 2 different engines: Either a Rolls-Royce RB211 or a Pratt & Whitney PW2000
Here is a diagram of a Rolls-Royce RB211. It says the opening of the turbine of a RB211 is 84.8 inches in diameter. (7 feet)
https://ars.els-cdn.com/content/image/3-s2.0-B0122274105003562-gr7.jpg
Here is a photo of President Trumps plane (757), look at the size of the opening of the plane turbine and the person standing next to the plane. Look at the center hub of the turbine, compare its size to the person standing next to the plane.
Here is a photo from the Pentagon on 9/11. Look at the round object behind the person on the left. That is the center hub of a turbine from the object that hit the Pentagon. Notice anything wrong?
I worked next to the factory that made the ALCM and was familiar with its size and shape from inert rounds that were stored in hallway locations in another building. Can you say as much? The body diameter was 24 inches, which is clearly in the ballpark of my remark---and smaller than the hole made by the 757 (which, again, was seen and identified as an airliner).
Look, you have no argument. You are sweeping aside all the positive evidence that it was exactly as described, which cannot be refuted.