The other shots seem to confirm the missile is just shorter than the bay itself. That would lend itself to a missile around the length (and therefore width) of the PL-12. I'm of course not saying that it's the PL-12 itself, but PL-12 sized. The first picture, due to the angle, made the missile look far longer relative to bay length, which was why we had all thought it was a bigger missile initially.It may have the proportional dimensions of the PL-12, but so is most other type of missiles. It's difficult to measure the size of the dummy missiles in the pictures with reasonable accuracy to tell if it's close to PL-12. Another thing is the dummy missile nose cone is very different with that of the PL-12 missile.