Very mind boggling force indeed. The amount of force 10 pounds of C4 gives off is also pretty mind boggling. Even just a car moving at 15k is a lot more force then people realize.
But, despite that fact I don't buy into the complete disintegration of the whole plane aside from the fuselage. The engines are far more structurally integral, and have a higher density per cubic inch then any other part of the plane, and they are the heaviest parts also.
If ANY part of the plane should have punched through the pentagons reinforced concrete walls it would have been engines. Titanium, that's what we use for battle tanks, and naval vessels. There is a measureable amount of titanium in turbine jet engine construction as it has some useful chemical properties with regards to insulation/thermodynamics.
I would LOVE for a physicist to come here and tell me I'm wrong about the above stated facts, and show me the err of my ways, explaining why they never made it inside, but the fuselage -made of substantially less integral, dense, and heavy aluminum alloys- punched through how many layers of the wall?
I mean, lets level it down. Forget all the dumb conspiracy theory bullshit with the people who thought they heard a missile, because honestly two turbine jet engines with maxed out thrust at nearly ground level is pretty god damn loud, don't know how many people realize just how loud it is. So that's easy to mistake.
Forget the fact that some of the windows where the wings should have been remained intact, that could just be angles and camera magick. None of that really bears any evidence, just speculation. But the plane -with exception to the fuselage of the craft of course- could not just disappear.
I mean, the empennage? Ok, fair enough it could have been bent and dragged in with the rest of the plane, but the engines? Nah.
The bodies? No, don't believe that for a second that everyone on board was reduced to pieces so small they couldn't be found. It is feasible for this to happen to some people depending on their locations, but it's not feasible for every single individual on the plane. The plane would either be empty, or there would have to be some hardcore explosives.
Not Kerosene either, something a lot more brisant would be required.
WOOPS! I accidentally wrote that the wings were more integral then the fuselage, it was meant to read engines obviously.
"George Bush says he speaks to god every day, and christians love him for it. If George Bush said he spoke to god through his hair dryer, they would think he was mad. I fail to see how the addition of a hair dryer makes it any more absurd."