Thought you might like to see the 9' curved trestle which is on a grade. Took me a few weeks to scratchbuild it. This bridge lays behind the Badger Creek sawmill. http://www.badger-creek.co.uk [ 05 March 2001: Message edited by: Paul Templar ]
Beautiful trestle Paul,But where is Susan? Did she decide to stay in town on this trip? <marquee>North American Rail Alliance</marquee>
That is a great piece of work Paul! Nine feet! How did you determine the height at each bent? Did you trim to fit the roadbed, or make the scenery fit at the bottom?
Good work Paul. The setting is very realistic. I particularly like the misty background that makes one feel like you are in the mountains.
Catt - Susan is at home looking after my other loco's Watash - I brought the ground up to meet the trestle. The bridge was made using the jig I wrote about earlier in this forum called "Scratchbuild your own trestle bridge" dated 13th February.
Paul, I have wondered lately about how they did build some of the tall tressles. I wish I had paid attention when I was around them now. When a tressle is taller than any available tree, how did they add onto a bent to gain the height? Did they stand one log on top of the one below, or beside it and bolt through? I guess it would be stronger to stack one on top, like two soda straws end to end. I have never seen this detail in any photos or movies that I could see. It doesen't show how in any of my engineering books either. Do you know?
<BLOCKQUOTE>quote:</font><HR>Originally posted by watash: Paul, I have wondered lately about how they did build some of the tall tressles. I wish I had paid attention when I was around them now. When a tressle is taller than any available tree, how did they add onto a bent to gain the height? Did they stand one log on top of the one below, or beside it and bolt through? I guess it would be stronger to stack one on top, like two soda straws end to end. I have never seen this detail in any photos or movies that I could see. It doesen't show how in any of my engineering books either. Do you know?<HR></BLOCKQUOTE> Hi Watash, Medford logging Company of Oregon used the McGiffert log loader to lower bents into place for trestle contruction.
Yeah Paul, I understand about lowering an assembled section of bent down to the bottom of a canyon. But my question is: If the bent is made from logs that are only 75 feet long, how did they attach the next set of logs to reach all the way up to the railroad bed grade? Did they stand one log on top of the one below, or did they set it beside the one below and bolt them together with a little over-lap? I remember a tressle shakes and quakes a little as you run across it. It was not stiff like a bridge.
Guys, Gotta love those trestles! I know I do.... And I love those geared locomotives even more!!! My favorite is the Shays, 3 truck most of all. But anyway I'd love to see someone freelance a Western Maryland Shay #6 3 truck on that treesle, just for the picture of it! And hello Watash......
Hi Watash, I havn't got a clue as to how they did that, one pole on top of another, sounds scary to me. Anybody else know how this was accomplished.
Paul, Simply stunning work!! Watash, I can't verify where I picked this up but, the timbers were bolted together end to end using fishplates similar to how rail sections are bolted together. I believe they used 4 plates, (1 per side with staggered bolts), again I may be off on this but I know I've seen a reference to this someplace. I may have come across it in a book about the Michigan- Calfornia Lumber company which I read years ago. It was a library book so I can't readily verify this...if anyone has this book please comment. 2slim
I figured it must have been something like that 2slim. I know they were sure spindly. 7600EM-1 the EM-1 was a Yellowstone articulated wasn't it? Didn't it have the twin air pumps up on the front of the smokebox, a 2-8-8-4 huge whopper? That was very much like the RF&P 2-8-8-2 was I think. Those and the SP 2-8-8-4 AC-9s are my very favorite engines!
Watash, Yes the EM-1's were "Yellowstones" 2-8-8-4's But my class of 2-8-8-4 "EM-1" was the Baltimore And Ohio's The largest locomotive on the railroad The road numbers for the B&O were #'s 7600 to 7629. they were the delivery numbers. And in 1956 they became 650 to 679. and then run till the bad news came to scrape 'em (thats swearing to me) And besides that the B&O had the largest order of 2-8-8-4 of any railroad that ordered them. As for the specks of the Locomotive it weighted in at 1,010,700 lbs. And tractive power was 115,000 lbs. I like 'em better than the big boys themself! real decent looking steamer. And thinking of it no they didn't have the pumps on the boiler front. They were a cleaned up engine B&O didn't like the "Flying Pumps" on their locomotives. ~John
I am especially fond of the "flying air pumps", we used to pace the SP AC-9's until they would out run us! That was a thrill! Paul and 2slim, I found an old Railroad Civil Engineering Handbook by Trotwine, that mentions "cleating" uprights as being the prefered method of adding extensions to timber roadway bedding supports. This in reference to "Joinery of timber truss and bracing of support columns using "bridge bolts", pegs, and keys." It mentions the requirements for shaping timbers of 5 feet square at starting and the allowable taper for timbers over onehundred and fifty feet in length! It is obvious they still had lots of old growth trees to work with. Can you emagine how many trees over 150 feet tall had to be cut to build a trestle like your model? No wonder almost all the old growth is gone! I have seen photos of some of that sized trunks on logging boggies, but they were cut to short lengths. Ever wondered how they moved the 150 footers to a trestle construction sight? Now I know they mounted them on boggies chained to the trunk, then had one engine in front chained to the boggie at that end, while a second engine was chained to the rear boggie. "This arrangement allows safe and proper management of the over-hang around curves whilest decending mountain railway." I would loved to have seen this one! [ 11 March 2001: Message edited by: watash ]
Watash, The 2-6-6-2's (KK-1's) and the 2-6-6-4's (KB-1's) had the "Flying Pumps" and the best thing I liked about those engine were that the pumps more or less framed the B&O capitol dome herald on the smoke box front it just was a neat little frame that caught my eye. Then latter after the B&o bought them new from Baldwin or from Seaboard they cleaned up the boilers and lowered the pumps to the pilot deck. And still it never turned a decent looking steamer bad but it remained the same in looks to me. But as you said I did like the looks of the "Flying Pumps" on those engines. Being that they weren't a major locomotive to the B&O. I believe that the biggest quantity of locomotives were the 2-8-0's and the 2-10-2's *Big Sixes* I know of 125, 2-10-2's on the B&O roster. And numerous 2-8-0's. ~John
