The design resulted from a need for more powerful engines for passenger trains. The PB15 Class engine was designed by Locomotive Engineer, Henry Horniblow and LW Piggott. Per Queensland Railway's classification system they were designated the PB15 class engine, P representing they were a passenger locomotive, the B that they had three driving axles and the 15 the cylinder diameter in inches. The PB15 engines were in essence identical to the B15 class engine.[2][3][4][5]
In 1925/26, Walkers manufactured a further 30 improved PB15 Class locomotives. These engines of these wheel arrangement were fitted with larger tenders and Walschaerts valve gear. This earned this variant of the PB15 engines the nickname Walschaerts.[2][4]
In 1932, a number of PB15 class locomotives attached to Ipswich depot were fitted with a second sandbox for rear sanding to assist with shunting work on the colliery branches. These types of engines were nos. 351, 508, 567, 574, 587, 591, and 750, the last mentioned being a Walschaert engines or 1924 type PB15 engine. Later, the rear sanding equipment attached to classmate engine No. 591 was removed and PB15 engine No. 525 was fitted in lieu.
Preservationedit
Five examples of these engines have been preserved:
448 is operational on the Queensland Pioneer Steam Railway, Swanbank and has been named in preservation RV Armstrong after the society's late founding member.[6] It could be classmate engine No. 446, but this is wrong.[1][6]
732 is in storage at the Workshops Rail Museum, one of the 1924 Walschaert type engines[5]
738 is on display at the Rosewood Railway Museum, Rosewood, one of the 1924 Walschaert type engines
In popular cultureedit
A virtual model of the PB15 is seen on the Trainz series.
Referencesedit
^ abcde"PB15 Class « qrig.org – queensland railway's interest group".
^ abcdArmstrong, John (1994). Locomotives in the Tropics Volume 2. Brisbane: Australian Railway Historical Society. pp. 79–83, 102–106. ISBN9780909937263.
^Turner, Jim (1997). Australian Steam Locomotives 1896-1958. Kenthurst: Kangaroo Press. pp. 21, 88. ISBN086417778X.
^ abcdOberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. pp. 106–108. ISBN9781921719011.
^ abClark, Peter (2012). An Australian Locomotive Guide. Rosenberg Publishing. pp. 51/52. ISBN9781921719554.
Media related to Queensland PB15 class locomotives at Wikimedia Commons
PB15 class Queensland's Railways Interest Group
May 06, 2024
queensland, pb15, class, locomotive, queensland, railways, pb15, class, locomotive, class, steam, engines, operated, queensland, railways, queensland, railways, pb15, class448, swanbanktype, originpower, typesteamdesignerhenry, horniblow, piggottbuilderevans, . The Queensland Railways PB15 class locomotive is an old class of 4 6 0 steam engines operated by the Queensland Railways Queensland Railways PB15 class448 at SwanbankType and originPower typeSteamDesignerHenry Horniblow amp LW PiggottBuilderEvans Anderson Phelan amp Co 70 North Ipswich Railway Workshops 1 Kitson amp Co 20 Toowoomba Foundry 20 Walkers Limited 122 Build date1899 1926Total produced233SpecificationsConfiguration Whyte4 6 0Gauge1 067 mm 3 ft 6 in Leading dia 2 ft 2 in 660 mm Driver dia 4 ft 0 in 1 219 mm Length47 ft 6 in 14 48 m Axle load8 1 tonnes 8 0 long tons 8 9 short tons Loco weight32 tonnes 31 5 long tons 35 3 short tons Tender weight24 tonnes 23 62096 long tons 26 45547 short tons Total weight56 tonnes 55 115566 long tons 61 729433 short tons Fuel typeCoalFuel capacity4 tonnes 3 9 long tons 4 4 short tons Water cap 2 500 imperial gallons 11 000 L 3 000 US gal Firebox Grate area12 sq ft 1 1 m2 Boiler pressure150 psi 1 034 kPa later upgraded to160 psi 1 103 kPa Heating surface Tubes and flues780 sq ft 72 m2 Cylinders2 outsideCylinder size15 in 20 in 381 mm 508 mm Valve gearStephenson locos built 1899 1912 Walschaerts locos built 1924 26 Performance figuresMaximum speed65 km h 40 39 mph Tractive effort12 750 lbf 56 71 kN CareerOperatorsQueensland RailwaysNumbers347 362 385 384 404 413 434 509 518 537 540 609 12 5 103 126 128 143 220 286 339 340 731 751Delivered1899First run22 12 1899 1 Last run8 1970 1 Retired8 1970 1 Withdrawn8 1970 1 Preserved444 448 454 732 738Current ownerVarious Heritage GroupsDisposition5 preserved 228 scrapped Contents 1 History 2 Preservation 3 In popular culture 4 References 5 External linksHistory editThe design resulted from a need for more powerful engines for passenger trains The PB15 Class engine was designed by Locomotive Engineer Henry Horniblow and LW Piggott Per Queensland Railway s classification system they were designated the PB15 class engine P representing they were a passenger locomotive the B that they had three driving axles and the 15 the cylinder diameter in inches The PB15 engines were in essence identical to the B15 class engine 2 3 4 5 The first PB15 engines were delivered by Walkers Limited Maryborough in December 1899 By 1912 a total of 202 engines had been built by Walkers 122 Evans Anderson Phelan amp Co 70 Kitson amp Co 20 and Toowoomba Foundry 20 They were fitted with Stephenson valve gear In May 1918 engine no 411 was converted at North Ipswich Railway Workshops into a tank engine the one off member of the 6D15 class engine In March 1922 however due to poor performance it was converted back to its original tender form 2 4 In 1924 one example of the engine was built by North Ipswich Railway Workshops for the Aramac Shire Tramway It was acquired by Queensland Railways in 1958 2 4 In 1925 26 Walkers manufactured a further 30 improved PB15 Class locomotives These engines of these wheel arrangement were fitted with larger tenders and Walschaerts valve gear This earned this variant of the PB15 engines the nickname Walschaerts 2 4 In 1932 a number of PB15 class locomotives attached to Ipswich depot were fitted with a second sandbox for rear sanding to assist with shunting work on the colliery branches These types of engines were nos 351 508 567 574 587 591 and 750 the last mentioned being a Walschaert engines or 1924 type PB15 engine Later the rear sanding equipment attached to classmate engine No 591 was removed and PB15 engine No 525 was fitted in lieu Preservation editFive examples of these engines have been preserved 444 is on display at the Workshops Rail Museum Ipswich 448 is operational on the Queensland Pioneer Steam Railway Swanbank and has been named in preservation RV Armstrong after the society s late founding member 6 It could be classmate engine No 446 but this is wrong 1 6 454 is undergoing a major overhaul at the Bellarine Railway Queenscliff Victoria 7 732 is in storage at the Workshops Rail Museum one of the 1924 Walschaert type engines 5 738 is on display at the Rosewood Railway Museum Rosewood one of the 1924 Walschaert type enginesIn popular culture editA virtual model of the PB15 is seen on the Trainz series References edit a b c d e PB15 Class qrig org queensland railway s interest group a b c d Armstrong John 1994 Locomotives in the Tropics Volume 2 Brisbane Australian Railway Historical Society pp 79 83 102 106 ISBN 9780909937263 Turner Jim 1997 Australian Steam Locomotives 1896 1958 Kenthurst Kangaroo Press pp 21 88 ISBN 086417778X a b c d Oberg Leon 2010 Locomotives of Australia 1850s 2010 Dural Rosenberg Publishing pp 106 108 ISBN 9781921719011 a b Clark Peter 2012 An Australian Locomotive Guide Rosenberg Publishing pp 51 52 ISBN 9781921719554 a b PB15 No 448 Australian Steam Locomotives Bellarine RailwayExternal links edit nbsp Media related to Queensland PB15 class locomotives at Wikimedia Commons PB15 class Queensland s Railways Interest Group Retrieved from https en wikipedia org w index php title Queensland PB15 class locomotive amp oldid 1175050522, wikipedia, wiki, book, books, library,
