------------------------------ Date: Wed, 17 Mar 99 07:40:22 -0700 From: Charlie Mutschler Subject: Re: [HOn3]: Mikado comparisons Rick Shoup Sez: > >How's about a discussion on pulling capabilities of C-16, 25, K27, etc. > >I do know the current 6 EBT 2-8-2 locos could pull 20 hoppers each loaded >with 30,000 lbs of coal up a 2%grade. But they were much bigger than all >but one class of K something. The early (1873) 2-6-0's had 5,000 lbs >tractive effort. The first three 2-8-0's built in 1874 had 9,600 tractive >effort. Do not know what that translates to in number of cars. >Regards.......... Rick Shoup > I've pulled the data from the following sources: Rainey & Kyper, *East Broad Top,* Bender, *Uintah Railway: the Gilsonite Route,* Ferrell, *Rails Sagebrush and Pine,* Martin, *Gold Rush Narrow Gauge,* and Hauck & Richardson, *Steam in the Rockies: A Denver & Rio Grande Roster.* For simplicity, I list class, engine number, cylinders, drivers, and tractive effort - in that order. EBT 2-8-2's. Class ?, No. 12. Baldwin, 1911. 17x24, 48, TE 22,100. Class ?, No. 14 - 15. Baldwin, 1912, 1914. 19x24, 48, TE 27,600. Class ?, No. 16 - 18. Baldwin, 1916, 1918, 1920. 20x24, 48, TE 30,600. Sumpter Valley 2-8-2's. Class ?, Nos. 16-18. Baldwin, 1915-1916. 17x22, 42, TE??. Class ?, Nos. 19-20. ALCO, 1920. 19x20, 44, TE??. (WP&Y TE 19,000) Uintah Ry. 2-8-2's. Class ?, No. 30. Baldwin, 1911. 19x22, 40, TE 30,300. Class ?, No. 40. Baldwin, 1913. 17x22, 42, TE 23,160. White Pass & Yukon 2-8-2's. Class ?, Nos. 70-73. Baldwin, 1938, 1939, 1947. 17x22, 44, TE 21,600. Class ?, Nos. 80-81. ALCO, 1920. 19x20, 44, TE 19,000. (Ex SV 19, 20.) Class ?, Nos. 190-200. Baldwin, 1943. 17x24, 48, TE 16,000. (US Army standard design) D&RGW 2-8-2's. Class K-27. Nos. 450-464. Baldwin, 1903. 17x22, 40, TE 27,000. Class K-28. Nos. 470-479. ALCO, 1923. 18x22, 48, TE 27,540. Class K-36. Nos. 480-489. Baldwin, 1925. 20x24, 44, TE 36,200. Class K-37. Nos. 490-499. Baldwin / D&RGW. 20x24, 44, TE 37,100. Note* Class K-37 were rebuilt from standard gauge Class C-41 2-8-0s (Baldwin, 1902) as narrow gauge 2-8-2s in 1928 and 1930. The D&RGW ordered new narrow gauge running gear from Baldwin, and did the rebuilding in its Burnham shops (Denver). Mechanically the K-37 class is virtually identical to the K-36 class - same cylinders and drivers. Anybody have tractive effort figures for the Sumpter Valley locos, especially the Baldwins? Confirmation of the tracitve effort figures for the Army's 2-8-2's? Cheers. Charlie -30- ------------------------------ Date: Tue, 16 Mar 1999 09:41:23 -0700 From: Rick Steele Subject: Pulling Power of 2-8-0's Here on the HOn3 list, it has been mentioned that the pulling power of the 2-8-0 locomotives lend themselves to small layouts. I wonder if anybody has realized how little they could actually pull. I am listing the steepest parts. The C&S timetable for 6/5/1922 lists the following tonnage ratings for the 2-8-0's on the following parts of their system (westbound): Locomotive Class B-4-A B-4-C B-4-D B-4-E B-4-F B-4-B Crossons to Estabrook: 100 110 140 155 180 Grant to Kenosha: 90 95 125 140 180 Como to Boreas: 75 90 110 120 148 Dickey to Climax: 75 90 110 120 148 Mt. Princeton to Alpine Tunnel: 90 100 110 120 The B-4-A is the Baldwin equivilant of the C-16 Now, to figure how few number of cars this actually is, here is a tonnage rating on the cars: Way Cars: 8 tons Box Cars 11 ton Flat Cars 8 tons Coal Cars 10 tons Stock Cars 11 tons Refrigerator Cars : 15 tons So you add, for example for the B-4-B's, the weight of all of the cars, and you find that you can haul , from Como to Boreas, 5 box cars 1 refrigerator and a Caboose, empty. Figure your loads at 25 tons each, so the same locomotive can haul one loaded Box, one loaded refrigerator, and empty flat and a caboose. Remember, the Caboose also weighs and must be figured in the total weight of the train. Really efficient, huh? Bad toward the bottom line, but great for modeling. But that's the way it was... No wonder the trend was toward larger and larger equipment. Rick Steele ------------------------------