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Submitted: May 24, 2007
Image Size: 1.3 MB
Resolution: 2104×1642

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MoPac GP18by ~classictrains

Photography / Transportation

Yet another Geep variation... a MoPac GP18 constructed with FA1 trade in parts (note the Alco trucks). The second unit is a high-hood GP18 and behind is a C&EI GP30... a very fine day for a railfan.

~Sylderon Jun 12, 2007

Again, I'm loving your colors. What film did you use?

~classictrains Jun 12, 2007

Mostly ASA 64 Ektachrome... but it is very deceiving since almost everything I post has been gamma and contrast corrected and color balanced to some degree. The result is that you are complementing my eye more than you are the film I used.

Thanks!

~Sylderon Jun 12, 2007

Well, so is mine, but you can't improve what was never there to begin with. Incidentally, most of my more recent work has been done entirely with Ektachrome.

~factorone33 Jun 7, 2007 Professional Photographer

I'm guessing that EMD and Alco trucks were relatively easy to interchange on the frames then.

~classictrains Jun 7, 2007

yep.... pretty much everyone used the same bolster style for B trucks... this was decades before self steering technology... C and A1A were a whole different deal too.

~factorone33 Jun 7, 2007 Professional Photographer

I kinda am at a loss for what the concept behind A1A trucks was. IT seems like a primitive version of a C truck...

~classictrains Jun 8, 2007

The center axle on the A1A was not powered. It served to provide the pulling power of a B truck but with the weight spread out over 3 axles. Sounds kind of silly today but in the 30's and 40's when the concept originated there was a lot of light weight stick rail out there.

~Sylderon Jun 12, 2007

It also improved ride quality at high speeds.

~classictrains Jun 12, 2007

thanks... I didn't know that.

~factorone33 Jun 9, 2007 Professional Photographer

It sounds good in a pragmatic fashion, but hardly useful today with the computerized traction that we have...

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