Blob 11 is Not a Plane
It should be self-evident that Blob 11 is not a plane.
It looks much more like a Flying
Pig than it does like an airplane.
It looks like a flying pig in every frame, even when it is closer to the camera. It looks like a blob in every frame. As it recedes toward the building it displays perspective of a much smaller object than a plane is, still more likely a flying pig than a jet plane.
If there had been a Plane in the footage that is supposed to show a plane, it would have looked like this, at least up to the point where it vanishes into the building like a Flight Simulator Simulation by Marcus Icke.
Perspective makes things look larger when they are closer to the camera.
If there had been a Plane in the first hit footage that is supposed to show a plane, it would looked bigger than the Plane Shape Hole when it was close to the camera.
Instead it displays perspective suitable for an object about the size of the corner thingie on the buildings.