Do Thunderbolts come in different sizes?

[ThunderboltFreak]

I think they do, I did have a prime example but can't seem to find the video. It was posted on youtube. It was like a bunch of photos popping up simontaniously of tornado sirens in a certain county. The "Work It" song was playing during the "slideshow".

[CDV777-1]

No, they don't.
The only difference is the rotator boxes.
The 1003 has a taller rotator box than the
1000 and 1000T. The 1000 series be has
a bit of different shaped rotator box but
it's pretty close to the original size.

[Archon]

Blower motor came in 7 1/2 & 10 HP