La notazione Whyte è un sistema per descrivere il rodiggio di una locomotiva ideato da Frederick Methvan Whyte e divenuto in uso agli inizi del XX secolo, pubblicato per la prima volta sul American Engineer and Railroad Journal del dicembre 1900. La notazione conta le ruote direzionali, poi le ruote motrici, e infine le ruote di supporto posteriori non motrici, in gruppi separati da trattini. Altre notazioni come quella dell'UIC e le francese, turca e svizzera contano gli assi anziché le ruote.

Rodiggi comuni Rodiggio(la locomotiva è orientata da sinistra a destra) Classificazione Whyte Nome Numero di unità prodotte Locomotive normali 0-2-2 Northumbrian 2-2-0 Planet 2-2-2 Patentee, Single, Jenny Lind 2-2-4T Aerolite 4-2-0 Jervis, p. 33. 4-2-2 Bicycle, Iron Duke, Single 4-2-4T Huntington 6-2-0 Crampton 0-4-0 Four-coupled 0-4-0+4 Four-coupled usate sui motori ferroviari 0-4-2 Olomana 0-4-4T Forney 2-4-0 Porter, 'Old English'Ellis, C Hamilton, Some Classic Locomotives, Allen & Unwin, 1949.173 p. 2-4-2 Columbia 2-4-4T Boston 4-4-0 AmericanWhite (1968), p. 46. eight-wheeler 4-4-2 Atlantic 4-4-4 Reading, Jubilee (Canada) 0-3-0(una ruota per asse; usata sulla Patiala State Monorail Trainways e la Listowel and Ballybunion Railway) 0-6-0 Six-coupled, Bourbonnais (Francia), USRA 0-6-0 (Stati Uniti) 0-6-2 Branchliner, Webb 0-6-4 Forney six-coupled 0-6-6 2-6-0 MogulWhite (1968), p 62-65. 11.000 2-6-2 Prairie 2-6-4 Adriatic 2-6-6 Suburban 4-6-0 Ten-wheelerWhite (1968), p. 57. (non britanniche) 4-6-2 Pacific 6.800 4-6-4 Hudson, Baltic 4-6-6 Usato dalla Boston and Albany Railroad. 0-8-0 Eight-coupled, USRA 0-8-0 (Stati Uniti) 0-8-2 River Irt 0-8-4T London 2-8-0 ConsolidationWhite (1968), p. 65. 35.000 2-8-2 Mikado, Mike, MacArthur 2-8-4 Berkshire, Kanawha 2-8-6 Usato solo su quattro locomotive Mason Bogie 4-8-0 Mastodon 4-8-2 Mountain, Mohawk (NYC) 4-8-4 Northern, Niagara, Confederation, Dixie, Greenbrier, Pocono, Potomac, Heavy Mountain (Atchison, Topeka, and Santa Fe), Golden State (Southern Pacific), Western, Laurentian (Delaware & Hudson Railroad), General, Wyoming (Lehigh Valley), Governor, Big Apple, GS Series "Daylight" (Southern Pacific) 4-8-6 Proposto dalla Lima, mai realizzato 6-8-6 Turbine 1 0-10-0 Ten-coupled, (rarely) Decapod 0-10-2 Union 2-10-0 Decapod, Russian Decapod 2-10-2 Santa Fe, Central, Decapod (solo dalla Southern Pacific) 2-10-4 Texas, Colorado (CB&Q), Selkirk (Canada) 4-10-0 Mastodon 4-10-2 Reid Tenwheeler,Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik, pp. 10-11, 31. ISBN 0869772112Holland, D.F. (1971). Steam Locomotives of the South African Railways. Vol. 1: 1859–1910 (1st ed.). Newton Abbott, England: David & Charles, pp. 92-95, 123-124, 134-135. ISBN 978-0-7153-5382-0 Southern Pacific, Overland 0-12-0 Twelve-coupled 2-12-0 Centipede 2-12-2 Javanic30 2-12-4 Bulgaria20 2-12-6 Proposto dalla Lima, mai realizzato 4-12-2 Union PacificWestcott, Linn H. (1960). Model Railroader Cyclopedia - Volume 1: Steam Locomotives. Kalmbach Books. ISBN 0-89024-001-9 88 4-14-4 AA20 1 Locomotive duplex 4-4-4-4 (PRR T1)53 6-4-4-6 (PRR S1) 1 4-4-6-4 (PRR Q2) 26 4-6-4-4 (PRR Q1) 1 Locomotive articolate (a semplice e doppia espansione) 0-4-4-0 Four Coupled Mallet 2-4-4-0 Vivarais5 0-4-4-2 Swiss 2-4-4-2 Skookum 4-4-6-2 AT&SF"The Jointed-Boiler Locomotives," Trains magazine, February 1945 2 0-6-6-0 Erie 2-6-6-0 Mogul Mallet 2-6-6-2 Chesapeake1,300 2-6-6-4] Adriatic Mallet 60 2-6-6-6 Allegheny, Blue Ridge 68 4-6-6-2 (Southern Pacific AM-2) 4-6-6-4 Challenger 252 2-6-8-0 (Southern Railway, Great Northern Railway)39 0-8-8-0 Angus 2-8-8-0 Bull Moose 2-8-8-2 Mikado Mallet222 2-8-8-4 Yellowstone 78 4-8-8-2 Mountain Mallet 195 4-8-8-4 Big Boy 25 2-10-10-2 (Santa Fe and Virginian railroads) 20 2-8-8-8-2 Triplex (Erie RR) 3 2-8-8-8-4 Triplex (Virginian RR) 1 Locomotive articolate Garratt 0-4-0+0-4-0 Double Four Coupled 0-6-0+0-6-0 Double Six Coupled 2-4-0+0-4-2 Double Porter 2-4-2+2-4-2 Double Columbia 2-6-0+0-6-2 Double Mogul 2-6-2+2-6-2 Double Prairie 2-8-0+0-8-2 Double Consolidation 2-8-2+2-8-2 Double Mikado 4-4-2+2-4-4 Double Atlantic 4-6-0+0-6-4 Mogyana 4-6-2+2-6-4 Double Pacific 4-6-4+4-6-4 Double Baltic, Double Hudson 4-8-0+0-8-4 Double Mastodon 4-8-2+2-8-4 Double Mountain 4-8-4+4-8-4 Double Northern

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Categoria:Meccanica e tecnologia ferroviaria