Been seeing a lot of these lately. Many seem to be sway-backed.
Is it my eyes or do they sag in the middle when full. This appears so to me even when the train is in motion. Maybe when Uke retires he can get out there with a straight - edge or chalk line.
Calvin said
6:09 AM, 04/20/11
I think that some tank cars have larger diameter ends, as a result of double shielding to discourage failure of the integrity of the tank in a derailment.
This makes the car look like it is sagging in the middle.
Pipes FC said
7:10 AM, 04/20/11
I'm sure they don't sag. I've seen them being scrapped in Columbus. Theres several layers. It looked like an outer layer, then fiber glass insulation, and then another tank.
Its neat when you stand next to one in the sun and you can hear the inside expanding.
-- Edited by Pipes FC on Wednesday 20th of April 2011 07:16:12 AM
Knucklepin said
8:05 AM, 04/20/11
Some could possibly be built to slope toward the middle to allow all of the liquid to completely drain when unloading.
Uke said
8:20 AM, 04/20/11
Sounds reasonable ta me... That slight 'dip' in the center ta help the draining of the contents. Most tankers are dedicated ta haul one type of liquid. More often than not, petroleum product, which is not surprising considering how much oil we move.
On the northern lines, imports from Canada, tanks arrive in strings, with mixed trains outa Vancouver. A lot of that oil has been coming from Alberta's 'oil sands' fields. That's up here in PNW territory.
Down south, probably a more local source of the oil is close ta wes's area. Just like the coal sources... Think local. Coal, oil, natural gas sources are less costly when produced, then consumed close to the supply.
Economics. Shipping huge quantities of any bulk cargo, is cheaper (than trucks) by rail.
Uke said
11:24 PM, 05/05/13
Three North American tank car builders... All of 'em follow standards set by AAR, and FRA enforces the standards.
And your eyes aren't playin' tricks on ya wes. Take a peek at American Railcar's schematic for a 15,000+ tank...
And here's two very typical tankers ta prove the point:
The cars are built with 'fatter' ends, and narrower center sections...and the vast majority unload from the botton center. All North American tank cars are 'lined' by a second inner tank, and food product tanks are usually buily with an inner 'fiberglass' third section, which is washed after every use.
-- Edited by Uke on Monday 6th of May 2013 05:37:20 AM
This is old stuff, and I thank you guys that are trying to get me up to speed.
(But you can't polish a horse turd.)
My broken down old machinist eye has a good shot at these tankers while they cross a pair of overpasses in south Lexington. They are on Norfolk So. rails. I bet they are swaybacked at least 5 inches.
Knucklepin's answer makes a lot of sense if the drain point is close to the middle of the car.
Thanks again..................wes
Calvin said
12:24 PM, 05/06/13
Everybody wants pictures......
Uke said
12:30 PM, 05/06/13
Ouch!
Cy Valley said
1:54 PM, 05/06/13
Pipes, maybe you see it but I don't see it. Do you see it? Does Snippy see it? Just wondered.
Snippy said
1:57 PM, 05/06/13
Snippy said
1:57 PM, 05/06/13
That tank car sucked.
Snippy said
1:59 PM, 05/06/13
Krink can see it, *cy*.
Snippy thinks Krink must have given up on Talledaga. Almost four hour rain delay to go racin' into the night. Got to watch Danica's boyfriend fuck her on national TeeVee.
Uke said
4:43 PM, 05/06/13
Cy Valley wrote:
Pipes, maybe you see it but I don't see it. Do you see it? Does Snippy see it? Just wondered.
BurningJournaldotcom (The websight on the internets/www thing) is concerned about the mental state of poster Cy Valley. The sight may be forced to take drastic action. Very soon, in order to protect the majority of actual, real members AKA: "The members of BurningJournaldotcom"!
Apologies in advance to all who may be inconvenienced by our possible actions. Thank you, The Staphph
Cy Valley said
7:59 PM, 05/06/13
But Uke, the question remains, do you see poster Pipes pic? I see 7.jpg
Been seeing a lot of these lately. Many seem to be sway-backed.
Is it my eyes or do they sag in the middle when full. This appears so to me even when the train is in motion. Maybe when Uke retires he can get out there with a straight - edge or chalk line.
I think that some tank cars have larger diameter ends, as a result of double shielding to discourage failure of the integrity of the tank in a derailment.
This makes the car look like it is sagging in the middle.
I'm sure they don't sag. I've seen them being scrapped in Columbus. Theres several layers. It looked like an outer layer, then fiber glass insulation, and then another tank.
Its neat when you stand next to one in the sun and you can hear the inside expanding.
-- Edited by Pipes FC on Wednesday 20th of April 2011 07:16:12 AM
Some could possibly be built to slope toward the middle to allow all of the liquid to completely drain when unloading.
On the northern lines, imports from Canada, tanks arrive in strings, with mixed trains outa Vancouver. A lot of that oil has been coming from Alberta's 'oil sands' fields. That's up here in PNW territory.
Down south, probably a more local source of the oil is close ta wes's area. Just like the coal sources... Think local. Coal, oil, natural gas sources are less costly when produced, then consumed close to the supply.
Economics. Shipping huge quantities of any bulk cargo, is cheaper (than trucks) by rail.
Three North American tank car builders... All of 'em follow standards set by AAR, and FRA enforces the standards.
And your eyes aren't playin' tricks on ya wes. Take a peek at American Railcar's schematic for a 15,000+ tank...
http://www.americanrailcar.com/RailcarManufacturing/Car.aspx?car=tank
And here's two very typical tankers ta prove the point:
The cars are built with 'fatter' ends, and narrower center sections...and the vast majority unload from the botton center. All North American tank cars are 'lined' by a second inner tank, and food product tanks are usually buily with an inner 'fiberglass' third section, which is washed after every use.
-- Edited by Uke on Monday 6th of May 2013 05:37:20 AM
This is old stuff, and I thank you guys that are trying to get me up to speed.
(But you can't polish a horse turd.)
My broken down old machinist eye has a good shot at these tankers while they cross a pair of overpasses in south Lexington. They are on Norfolk So. rails. I bet they are swaybacked at least 5 inches.
Knucklepin's answer makes a lot of sense if the drain point is close to the middle of the car.
Thanks again..................wes
Everybody wants pictures......
That tank car sucked.
Snippy thinks Krink must have given up on Talledaga. Almost four hour rain delay to go racin' into the night. Got to watch Danica's boyfriend fuck her on national TeeVee.
BurningJournaldotcom (The websight on the internets/www thing) is concerned about the mental state of poster Cy Valley. The sight may be forced to take drastic action. Very soon, in order to protect the majority of actual, real members AKA: "The members of BurningJournaldotcom"!
Apologies in advance to all who may be inconvenienced by our possible actions. Thank you, The Staphph