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Model Railroading > southern e unit air tanksDate: 07/25/15 14:03 southern e unit air tanks Author: john7968 can anyone help ...need the dimensions, length and diameter,of the four air tanks on the roofof the southern e units
Date: 07/25/15 14:35 Re: southern e unit air tanks Author: wabash2800 I can't answer you question but if you can't find an answer, you might try purchasing the tanks manufactured for "torpedo geeps" and placing them on an E8 to see if they are the same thing. If they are too long, you can cut a section out to make them shorter. If they are too short, add a section the same diameter. I suspect they are least the same diameter. If you can't get them in your scale and they are correct, you can take measurements off the part.
Edited 2 time(s). Last edit at 07/25/15 16:09 by wabash2800. Date: 07/25/15 14:50 Re: southern e unit air tanks Author: BNModeler I'm just using the standard air tanks that you would find under any SD/GP style unit and they look right to me.
Date: 07/26/15 16:56 Re: southern e unit air tanks Author: Notch16 This got me intrigued, because the Krauss-Maffei ML 4000s received stock EMD air tanks after a couple years of service, and I've been looking for the best available commercial part to upgrade my Rivarossi models. So I did a little photo comparison. It's not 100% dimensionally scientific, but I blew up the best broadside photos of each model that I could find, and scaled them, side by each, to their proper overall HO length, then cropped. There's no scale to this photo, but all images are in very close proximity to their correct relative sizes -- I would say plus or minus 5%.
~ BZ Date: 07/26/15 17:07 Re: southern e unit air tanks Author: wabash2800 Interesting, thanks for sharing. It appears that if the GP9 and E8 tank are the same diameter, one could use the stock GP9 tanks and cut a section out and resplice them to the proper length. A plastic after market part would likely be easier to cut and work, with the aid of a miter box and razor saw.
Edited 1 time(s). Last edit at 07/26/15 17:10 by wabash2800. Date: 07/26/15 17:37 Re: southern e unit air tanks Author: Notch16 Details West has cast pewter tanks for the GP9 "Torpedo" style, catalog number AT-146. They also stock an AT-205 "Underframe Tank" but I don't know the dimensions.
At first glance, I thought the DW "Torpedo" tanks had the mounting bands cast in the wrong place for the SR E-units. But actually, the distance between those straps seems about the same as it is for the E-unit tanks. That's a nice little bonus, because it means you can cut just the ends off the DW tanks, then cut the remaining tank portions flush with the outer edge of each strap, then reattach the ends -- with no seams showing! Nice! And probably not a lucky accident, but part of the standardization of parts. Could be, anyway. Sometimes things are the same dimensions for a reason, but it seems like a little gift anyway. ~ BZ Edited 1 time(s). Last edit at 07/26/15 17:38 by Notch16. |