One of the weirdest solos Tom ever made, I initially had no idea how he did the last part of the solo, as it sounded really weird, but after a while of getting used to his style of solos, it is actually pretty easy to figure out.
It is a shame that they almost never played this live. Probably due to the chorus being so hard for Chris to sing because there were many high notes, they thought it was only good for the studio, and not a good song to be played live.
P.S. The part between the 2nd and 3rd part is just open strings, nothing special about this. Just in case anyone is wondering about that part as well.
For those who wonder how he did the solo:
1st part: playing four notes while pedaling up and down with the whammy pedal (1 octave up)
2nd part: similar way he did with the solo in Sleep Now In The Fire, with the toggle switch technique and whammy bar to change the feedback pitch. The notes in between are probably recorded with another guitar (most likely), since I watched a live video (only audio sorry, and probably one of the few times they played this song), where he pretty much did the same as the first part of this feedback solo.
3rd part: It also took me a while to figure this out, but after I saw that live video, it is actually pretty simple, which is similar to the 2nd part, except he just played around with the whammy bar without the killswitch, moving it up and down at a moderate pace, and then after 4 measures, a bit more slower.