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First Class section of a Class 171. Initial deliveries took place when the original two-car units, at the time classified as Class 170/7, entered service in 2003, followed by the four-car Class 171/8 units in 2004. At this time, the two-car sets received their Dellner couplings and were reclassified as Class 171/7.
While the RD-170 had nozzles which swiveled on two axes, the RD-171's nozzles only swivel on one axis. [2] Models called the RD-172 and RD-173 were proposed, upgrades that would provide additional thrust, and the RD-173 proposal was finalized as the RD-171M upgrade in 2006.
Much of the design of the Class 168/170/171 is derived from the Networker Turbo Class 165 and Class 166 trains built by British Rail Engineering Limited's Holgate Road carriage works. Notable features shared are the aluminium alloy frame and two-stage Voith T211r hydrodynamic transmission system. The diesel engine has changed to an MTU 6R 183TD13H.
The Zenit-2 was the first Zenit to be designed for use as an orbital carrier rocket. It consists of two stages. The first uses an RD-171 engine, and an RD-120 engine powers the second stage. It first flew on 13 April 1985, two years before the Energia, due to delays relating to the Energia's development.
All other engines of Class 171 were transferred to Zwickau following the termination of their service by Railion Deutschland AG. The locomotive train (comprising 171 011, 171 009, 171 003, 171 008, 171 004, 171 014, 171 013 and 171 005) reached Halle on 13 April 2005 and then continued to Zwickau on 21 April 2005.
The British Rail Class 170 Turbostar is a British diesel-hydraulic multiple unit passenger train designed and built by Adtranz, and later by Bombardier Transportation, at Derby Litchurch Lane Works. The Class 170 was derived from the British Rail Class 165 and 166 DMUs, known as the Networker Turbos, of the 1990s.
Class 171 may refer to: British Rail Class 171, a type of diesel multiple-unit train; Class 171, a Caledonian Railway 0-4-4T steam locomotive;
Class 171 units were introduced in passenger service in December 2003, [122] [e] allowing the Class 207 units to be withdrawn in August 2004. The Class 205s continued in passenger service until November of that year. [92] [123] [f] A Class 421 "4-CIG" unit at the Oxted "Electrification Gala" in September 1987