Trufans...

[Tad_T]

That’s cool

[peteski]

The video in the OP shows prototype locos with fans (quite visibly) spinning. Yes, the second clip appears to have that (video?) phenomenon where blades look like they are spinning slower than they actually are, but not the first clip. Anyway, it doesn't matter. Those who like this feature will but it and those that don't won't. I think it's cool as $#!+!

That is likely the stroboscopic effect of the camera's shutter speed and number of frames per second of the video. You see this effect frequently in videos or movies. Things like helicopter rotor spinning very slowly on a flying helicopter or car wheels seemingly turning backwards on a forward moving car.

[Chris333]

I wonder why they didn't use tiny stepper motors.

[Jesse6669]

I was thinking this thread was going to be about live streaming busty cougars.. 

[peteski]

I wonder why they didn't use tiny stepper motors.

They rotate in discrete steps, stepper motors running at relatively (for them) high speeds make a lot of noise. They "sing".  Just look for online videos of floppy drives playing music using their head stepper motors to make the sound.  I suspect that even very small motors would make similar noises.  Plus you can't just hook them up to DC voltage to run. They need relatively complex electronics to make them move.  That all requires free space inside the model.

[nickelplate759]

I think so

Is this picture from the "only fans" service I've been hearing so much about?

[tehachapifan]

Is this picture from the "only fans" service I've been hearing so much about?

You win the Interwebs for the day!!

[basementcalling]

Just add resistors so the decoder runs hot enough to make etched metal blades spin from the heat exhaust, just like the real thing. 

[Ed Kapuscinski]

I was thinking this thread was going to be about live streaming busty cougars.. 

There's still time!

[packers#1]

Honestly I’m more excited about the new drivetrain versus the fans. I think they would be great for a switching layout, where you’re running slower and especially when paired with a protothrottle. But the big thing here is, if the drivetrain works well, there’s suddenly so much more room above the drivetrain for electronics and speakers. You could fit such a big speaker now, or maybe a rechargeable battery to no longer even need track power, or maybe even both.

I’m still debating whether to get a UP Geep or not. They haven’t really sold off the GP40’s the same way as the GP15’s and 38-2’s to shortlines, but I could be convinced some time to build a UP branch set in the upper Midwest. Ultimately though, I’m hopeful they’ll do a run of DME/ICE as a GP40-2, so I can patch it as a lease unit.