Justin wrote:

CJ wrote:Unfortunately it wouldn't as the blower would slow down with the chopper

Unless of course it was independently driven.

Said picture appears to be using the standard XT22 series motor.

I would think the siren with the square horns is a very early Sentry - it looks very similar to one of the vertical Sterlings that there have been pictures on here of before, only with square horns

Hah. Nice catch though

Alert?

It would certainly assist in keeping the wind down tones loud, in comparison to say an unassisted rotor (like that of the T-128 or the 2001) where they get quieter as they spin down as less air is being sucked in; this design seems to keep the air supply up to the rotor. Unfortunately it wouldn't a...

It's a mobile phone mast.

Somewhere on YouTube there is a video of the "Ghost Allertor" that spins around with the wind. It's possibly the same scenario. lolz. I've gotta go see that. *off to YouTube* EDIT: Think I found it: http://www.youtube.com/watch?v=y_UB3JLGCg4 I have a feeling that Allertor has some broken ...

Well it looks like you're starting to get somewhere, great work guys!

JBKIRBY wrote: Then, I may have reversed one of the brushes.

There is no real orientation for the brushes - the shape there is what has been formed by wear.

In a motor, brushes do not affect the direction of rotation. Are the field windings connected?

ver tum wrote:but that might change if I can manage to get the mic inside the horn of a TBolt while it's sounding!

I hope it's a tough dynamic mic, a condenser would break right away!