The ALCO RSD-1 was a diesel-electric locomotive built by the American Locomotive Company (ALCO). This model was a road switcher type rated at 1,000 horsepower (750 kW) and rode on three-axle trucks, having a C-C wheel arrangement. It was often used in much the same manner as its four-axle counterpart, the ALCO RS-1, though the six-motor design allowed better tractive effort at lower speeds, as well as a lower weight-per-axle. It was developed to meet the need to supply the Soviet Union over the Trans-Iranian Railway starting in mid 1943. On the other hand, due to the traction generator and appurtenant control apparatus being sized for four axles and yet having two additional powered axles, it had poorer performance at higher speeds.[1]
Former Soviet Railways Да20-09 (DA20-09) on exhibit at the railway museum in former Varshavsky terminal -- Saint Petersburg, Russia. Originally built by ALCO as a model RSD-1 in 1944 and exported to the USSR.
There were three different specifications issued that covered the RSD-1 model; E1645 and E1646 were for wartime production for the US Army, while E1647 was a post-war order for the Mexican National Railways (Ferrocarriles Nacionales de México).
Soviet Union
Alco locos
Seventy of the RSD-1s were shipped overseas to the Soviet Union in early 1945 during World War II, as part of the Allied war effort. They were classed there as the Soviet Railways ДA20 (DA20) class, also known just as ДА after 1947 (D for Diesel, A for Alco and 20 for axle load in tons).[1] They were used in ordinary line service rather than shunting, especially in southern parts of the Soviet Union (Turkmenistan), where water for steam locomotives was scarce.[1] These locomotives were also used on the Trans-Iranian Railway. The Soviets subsequently kept many of the RSD-1s after the war, adopting the design to form the basis of their own line of diesel locomotives TE1, TEM1 and TEM2. Two RSD-1s were sunk en route to the Soviet Union when the ship they were on was torpedoed by a German U-boat (ДA20-41 and ДA20-50) and 68 were received.[1] They entered service from March 1945, and some were still in service in the 1980s.[1] The DA20-27 hauled Stalin's train to Potsdam Conference, and its positive evaluation was among reasons to copy the design[1] (the Soviet Union built only 51 diesel locomotives before the war, so it had not enough experience with designing).[2]
Soviet locos
Diesel locomotive TE5-20-032 in the Railway Museum in Saint Petersburg, Russia
The Soviet-built TE1 (ТЭ1), initially designed TE1-20, was a reverse engineered copy of the Alco product, adapted to metric system and Soviet norms.[3] They were almost identical, but locomotives after #TE1-20-122 had 1050 mm (41.34 inch), instead of 40 inch wheels (1016 mm).[3] The designation meant T - teplovoz (diesel engine), E - electric transmission, model 1, 20 ton axle load.[3] A production lasted from 1947 until 1950 and 300 were made (including 2 of TE5 class).[3] The TE2 (ТЭ2) utilized engine and electric components of TE1, but was as a twin-unit version, with a wagon-type body and utilized two-axle bogies.[4] The TE5 (ТЭ5) was a cold climate version of the TE1. The cab was extended for most of the locomotive to provide covered access to the engine and a boiler was added to keep the cab warm when the engine was not running. [5] Only two (or five) TE5 were built, within TE1 series.[3]
US Army
The first 13 RS-1s were requisitioned by the US Army, returned to ALCO and rebuilt to RSD-1s #8000-8012 for use on the Trans Iranian Railroad. This effort was to supply the Soviet Union. See the RS-1 article for the identity of the first 13 RSD-1s.
Original owners
Specification E1645
Railroad
Quantity
Road Numbers
Notes
United States Army
13
8000–8012
Persian Gulf Command, Iran
United States Army
44
8013–8056
8040 and 8045 rebuilt for Alaska Railroad as RF1 in October 1947, renumbered 1050A and 1050B
alco, diesel, electric, locomotive, built, american, locomotive, company, alco, this, model, road, switcher, type, rated, horsepower, rode, three, axle, trucks, having, wheel, arrangement, often, used, much, same, manner, four, axle, counterpart, alco, though,. The ALCO RSD 1 was a diesel electric locomotive built by the American Locomotive Company ALCO This model was a road switcher type rated at 1 000 horsepower 750 kW and rode on three axle trucks having a C C wheel arrangement It was often used in much the same manner as its four axle counterpart the ALCO RS 1 though the six motor design allowed better tractive effort at lower speeds as well as a lower weight per axle It was developed to meet the need to supply the Soviet Union over the Trans Iranian Railway starting in mid 1943 On the other hand due to the traction generator and appurtenant control apparatus being sized for four axles and yet having two additional powered axles it had poorer performance at higher speeds 1 ALCO RSD 1Former US Army ALCO RSD 1 now owned by the Tennessee Valley Railroad Museum Donated from the Eglin Air Force Base Railroad when that operation was abandoned Type and originPower typeDiesel electricModelRSD 1Build dateNovember 1942 May 1946Total produced150SpecificationsConfiguration AARC C UICCo Co Gauge4 ft 8 1 2 in 1 435 mm standard gauge 1 520 mm 4 ft 11 27 32 in RussiaLength55 ft 5 3 4 in 16 91 m Width10 ft 0 in 3 05 m Height14 ft 5 in 4 39 m Loco weight247 500 lb 112 300 kg Fuel capacity1 000 US gal 830 imp gal 3 800 L Prime moverALCO 539TEngine typeStraight 6 Four stroke dieselAspirationTurbochargerDisplacement9 572 cu in 157 L GeneratorDC generatorTraction motorsDC traction motorsCylinders6Cylinder size12 1 2 in 13 in 318 mm 330 mm TransmissionElectricLoco brakeStraight airTrain brakesAirPerformance figuresMaximum speed65 mph 105 km h Power output1 000 hp 750 kW Tractive effort40 425 lbf 179 820 N CareerLocaleNorth America Soviet Union IranFormer Soviet Railways Da20 09 DA20 09 on exhibit at the railway museum in former Varshavsky terminal Saint Petersburg Russia Originally built by ALCO as a model RSD 1 in 1944 and exported to the USSR Contents 1 Variations 2 Soviet Union 2 1 Alco locos 2 2 Soviet locos 3 US Army 4 Original owners 4 1 Specification E1645 4 2 Specification E1646 4 3 Specification E1647 5 References 6 External linksVariations EditThere were three different specifications issued that covered the RSD 1 model E1645 and E1646 were for wartime production for the US Army while E1647 was a post war order for the Mexican National Railways Ferrocarriles Nacionales de Mexico Soviet Union EditAlco locos Edit Seventy of the RSD 1s were shipped overseas to the Soviet Union in early 1945 during World War II as part of the Allied war effort They were classed there as the Soviet Railways DA20 DA20 class also known just as DA after 1947 D for Diesel A for Alco and 20 for axle load in tons 1 They were used in ordinary line service rather than shunting especially in southern parts of the Soviet Union Turkmenistan where water for steam locomotives was scarce 1 These locomotives were also used on the Trans Iranian Railway The Soviets subsequently kept many of the RSD 1s after the war adopting the design to form the basis of their own line of diesel locomotives TE1 TEM1 and TEM2 Two RSD 1s were sunk en route to the Soviet Union when the ship they were on was torpedoed by a German U boat DA20 41 and DA20 50 and 68 were received 1 They entered service from March 1945 and some were still in service in the 1980s 1 The DA20 27 hauled Stalin s train to Potsdam Conference and its positive evaluation was among reasons to copy the design 1 the Soviet Union built only 51 diesel locomotives before the war so it had not enough experience with designing 2 Soviet locos Edit Diesel locomotive TE5 20 032 in the Railway Museum in Saint Petersburg Russia The Soviet built TE1 TE1 initially designed TE1 20 was a reverse engineered copy of the Alco product adapted to metric system and Soviet norms 3 They were almost identical but locomotives after TE1 20 122 had 1050 mm 41 34 inch instead of 40 inch wheels 1016 mm 3 The designation meant T teplovoz diesel engine E electric transmission model 1 20 ton axle load 3 A production lasted from 1947 until 1950 and 300 were made including 2 of TE5 class 3 The TE2 TE2 utilized engine and electric components of TE1 but was as a twin unit version with a wagon type body and utilized two axle bogies 4 The TE5 TE5 was a cold climate version of the TE1 The cab was extended for most of the locomotive to provide covered access to the engine and a boiler was added to keep the cab warm when the engine was not running 5 Only two or five TE5 were built within TE1 series 3 US Army EditThe first 13 RS 1s were requisitioned by the US Army returned to ALCO and rebuilt to RSD 1s 8000 8012 for use on the Trans Iranian Railroad This effort was to supply the Soviet Union See the RS 1 article for the identity of the first 13 RSD 1s Original owners EditSpecification E1645 Edit Railroad Quantity Road Numbers NotesUnited States Army 13 8000 8012 Persian Gulf Command IranUnited States Army 44 8013 8056 8040 and 8045 rebuilt for Alaska Railroad as RF1 in October 1947 renumbered 1050A and 1050BSpecification E1646 Edit Railroad Quantity Road Numbers NotesUnited States Army 30 8600 8629 to Soviet Railways Da20 1 to Da20 30United States Army 11 8630 8640 lost in U boat attackUnited States Army 8 8641 8648 to Soviet Railways Da20 31 to Da20 38United States Army 1 8649 lost in U boat attackUnited States Army 30 8650 8679United States Army 20 8680 8699 to Soviet Railways Da20 39 to Da20 58Specification E1647 Edit Railroad Quantity Road Numbers NotesFerrocarriles Nacionales de Mexico 6 5700 5705 RSD 1 being delivered to the US Army Transportation Museum at Fort Eustis seen in 2011References Edit a b c d e f Rakov 1995 p 371 374 Rakov 1995 p 356 a b c d e Rakov 1995 p 375 377 Rakov 1995 p 379 380 Westwood J N 1963 Soviet Railways Today London Ian Allan p 71 Rakov Vitaliy 1995 Lokomotivy otechestvennyh zheleznyh dorog 1845 1955 Locomotives of domestic railways 1845 1955 in Russian Moscow ISBN 5 277 00821 7 External links Edit Wikimedia Commons has media related to ALCO RSD 1 locomotives ALCo World The Russian RSD 1 CopiesAnother RSD 1 roster with build dates http www thedieselshop us Alco RSD1 HTML Archived 2007 11 02 at the Wayback Machine Retrieved from https en wikipedia org w index php title ALCO RSD 1 amp oldid 1115951207, wikipedia, wiki, book, books, library,
