Did the jet that hit the Pentagon on Sept 11 have retractable wings?

I just wonder why in the world people don't have better things to do than this.First of all the wings aren't structurally sound enough to stay together and make a hole the same size as the planes original size.Secondly there are literally thousands of different factors that are ociated with fires and explosions.The height of the building.The shape of the building.The building materials used.I've seen houses burn almost to the ground and one room not even have smoke damage. Nothing on this clip makes me suspicious.