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- LNWR_Whale_Precursor_Class abstract "The London and North Western Railway (LNWR) Precursor Class, the second to be known by that name, was a class of 4-4-0 steam locomotives.They were introduced by George Whale in 1904 and 130 examples were built by Crewe Works up to 1907. Their introduction allowed Whale to phase out his predecessor Francis Webb's unreliable compound locomotives. They were essentially a larger version of Webb's LNWR Improved Precedent Class. As built, they were saturated, though some were later superheated.Whale's Experiment Class 4-6-0 were essentially an extended version built from 1905. An Atlantic tank engine version, Precursor Tank Class was also built from 1906. The Precursors were developed by Charles Bowen-Cooke into the superheated George the Fifth Class 4-4-0 (1910). The main visual difference was that the Precursors had separate splashers over each of the driving wheels while the Georges had combined splashers that covered both pairs.The LNWR reused numbers and names from withdrawn locomotives, with the result that the numbering system was completely haphazard. Starting with the first of the class 513 Precursor in 1913, were given superheaters, the process continuing until just after grouping in 1923. Most of the superheated engines were also converted from having slide valves to piston valves.This resulted in two main subclasses; saturated locomotives with 19 by 26 inches (480 mm × 660 mm) cylinders, and superheated locomotives with 20.5 by 26 inches (520 mm × 660 mm) cylinders. The LMS gave them the power classification 3P. The saturated engines were given the LMS numbers in the 5187–5266 series, though not all survived long enough to receive them. The superheated engines were given the LMS numbers 5270–5319 (5267–5269 were not used).The LMS continued to superheat engines until 1926, these rebuilds retained their LMS number. Also, three superheated engines became saturated via boiler swaps.Withdrawals of the saturated engines started in 1927 and the last engine in as built condition was withdrawn in 1935. The four superheated engines which retained slide valves were withdrawn 1931–1936. Withdrawals of the superheated engines with piston valves began in 1935. Those not withdrawn had 20000 added to their numbers 1934–1937 to make room for Black Fives.At the end of 1939 only seven survived. Only a single example was inherited by British Railways in 1948, 25297 Sirocco, which was withdrawn in 1949. Despite being allocated the number 58010, that was never applied.None was preserved.".
- LNWR_Whale_Precursor_Class activeYearsEndYear "1907".
- LNWR_Whale_Precursor_Class activeYearsStartYear "1904".
- LNWR_Whale_Precursor_Class builder London_and_North_Western_Railway.
- LNWR_Whale_Precursor_Class designer George_Whale.
- LNWR_Whale_Precursor_Class numberBuilt "130".
- LNWR_Whale_Precursor_Class thumbnail LNWR_Precursor_class_locomotive_513_Precursor_(Howden,_Boys'_Book_of_Locomotives,_1907).jpg?width=300.
- LNWR_Whale_Precursor_Class wikiPageExternalLink steam_search.php?xclass=PREC.
- LNWR_Whale_Precursor_Class wikiPageID "20019845".
- LNWR_Whale_Precursor_Class wikiPageRevisionID "498005844".
- LNWR_Whale_Precursor_Class builddate "1904".
- LNWR_Whale_Precursor_Class builder "LNWR Crewe Works".
- LNWR_Whale_Precursor_Class caption "513".
- LNWR_Whale_Precursor_Class cylindercount "Two".
- LNWR_Whale_Precursor_Class cylindersize "or".
- LNWR_Whale_Precursor_Class designer George_Whale.
- LNWR_Whale_Precursor_Class disposition "All scrapped".
- LNWR_Whale_Precursor_Class hasPhotoCollection LNWR_Whale_Precursor_Class.
- LNWR_Whale_Precursor_Class name "LNWR Precursor class".
- LNWR_Whale_Precursor_Class numinclass "--01-01".
- LNWR_Whale_Precursor_Class powerclass "2".
- LNWR_Whale_Precursor_Class powertype "Steam".
- LNWR_Whale_Precursor_Class railroad "LNWR LMSBR".
- LNWR_Whale_Precursor_Class serialnumber "4415".
- LNWR_Whale_Precursor_Class totalproduction "130".
- LNWR_Whale_Precursor_Class tractiveeffort "or".
- LNWR_Whale_Precursor_Class uicclass "2".
- LNWR_Whale_Precursor_Class valvegear Joy_valve_gear.
- LNWR_Whale_Precursor_Class whytetype "4".
- LNWR_Whale_Precursor_Class withdrawndate "1927".
- LNWR_Whale_Precursor_Class subject Category:4-4-0_locomotives.
- LNWR_Whale_Precursor_Class subject Category:London_and_North_Western_Railway_locomotives.
- LNWR_Whale_Precursor_Class subject Category:Railway_locomotives_introduced_in_1904.
- LNWR_Whale_Precursor_Class type 4-4-0Locomotives.
- LNWR_Whale_Precursor_Class type Artifact100021939.
- LNWR_Whale_Precursor_Class type Container103094503.
- LNWR_Whale_Precursor_Class type Conveyance103100490.
- LNWR_Whale_Precursor_Class type Instrumentality103575240.
- LNWR_Whale_Precursor_Class type Locomotive103684823.
- LNWR_Whale_Precursor_Class type Object100002684.
- LNWR_Whale_Precursor_Class type PhysicalEntity100001930.
- LNWR_Whale_Precursor_Class type RailwayLocomotivesIntroducedIn1904.
- LNWR_Whale_Precursor_Class type Self-propelledVehicle104170037.
- LNWR_Whale_Precursor_Class type Vehicle104524313.
- LNWR_Whale_Precursor_Class type WheeledVehicle104576211.
- LNWR_Whale_Precursor_Class type Whole100003553.
- LNWR_Whale_Precursor_Class type Locomotive.
- LNWR_Whale_Precursor_Class type MeanOfTransportation.
- LNWR_Whale_Precursor_Class type Product.
- LNWR_Whale_Precursor_Class type DesignedArtifact.
- LNWR_Whale_Precursor_Class comment "The London and North Western Railway (LNWR) Precursor Class, the second to be known by that name, was a class of 4-4-0 steam locomotives.They were introduced by George Whale in 1904 and 130 examples were built by Crewe Works up to 1907. Their introduction allowed Whale to phase out his predecessor Francis Webb's unreliable compound locomotives. They were essentially a larger version of Webb's LNWR Improved Precedent Class.".
- LNWR_Whale_Precursor_Class label "LNWR Whale Precursor Class".
- LNWR_Whale_Precursor_Class sameAs m.04ycsj4.
- LNWR_Whale_Precursor_Class sameAs Q6459434.
- LNWR_Whale_Precursor_Class sameAs Q6459434.
- LNWR_Whale_Precursor_Class sameAs LNWR_Whale_Precursor_Class.
- LNWR_Whale_Precursor_Class wasDerivedFrom LNWR_Whale_Precursor_Class?oldid=498005844.
- LNWR_Whale_Precursor_Class depiction LNWR_Precursor_class_locomotive_513_Precursor_(Howden,_Boys'_Book_of_Locomotives,_1907).jpg.
- LNWR_Whale_Precursor_Class isPrimaryTopicOf LNWR_Whale_Precursor_Class.
- LNWR_Whale_Precursor_Class name "LNWR Precursor class".