1.
The hole is too small to accommodate a 757. False. the diameter of the fuselage of a 757 is 12'. The actual hole in the Pentagon (pre collapse) has been estimated at 15'. The wingspan is 124'. The damage done to the facade of the Pentagon at near ground level was about 100' wide, enough to accommodate the wings minus the(non fuel containing) tips. Also the collapsed portion of the Pentagon is aprox equal to the distance between the two engines. Coincidence?
Note undercut damage at ground level to the left of the collapsed section and the wooden pilings used to prop it up.
2.
The "Amazing Pentalawn" was pristine. False. There is a least one good aerial photograph showing extensive burn damage to the lawn. Since the plane did not hit perpendicular to the Pentagon , the burning fuel was carried in the direction of the plane's momentum. To the left of the point of impact (when facing the building).
3.
The engine part shown in the pics is too small to come from a 757 engine. False. It would certainly be true if it was the turbofan from a Rolls Royce RB211-535E4B Engine, but its not. It’s the compressor disk, and the dimensions are correct.
4.
There is no wreckage of a 757 on the lawn. Aircraft and body parts should be strewn everywhere. False. There are plenty of photographs showing aircraft
skin on the lawn. Any parts
outside the pentagon will be very light as the plane had considerable momentum when it hit the building. Since fuel explosions are low velocity compared to high order explosives,(and less likely to overcome the force of momentum) dense objects such as steel parts and human remains would carry in the direction in the aircraft. More significantly this is proof high explosives were not involved as we would see significantly more damage to the Pentagon and building debris scattered in the area.