British Railways standard steam locomotives

Class Wheel
Arr.
Dr.
Dia.
Cylinders
Dia. x Str.
Boiler
Press.
Ad.
Wt.
EW
WO
Grate
Area
Evap.
Surface
Sup.
Surface
Remarks
70-7A 4-6-2 74in 20x28in 250psi 61t 95t 42sq.ft. 2475sq.ft. 675sq.ft. Britannia
71-8A 4-6-2 74in 18x28in(3) 250psi 67t 102t 49sq.ft. 2490sq.ft. 675sq.ft. Duke
72-6A 4-6-2 74in 19½x28in 225psi 58t 90t 36sq.ft. 2075sq.ft. 590sq.ft. Clan
73-5B 4-6-0 74in 19x28in 225psi 58t 76t 29sq.ft. 1650sq.ft. 360sq.ft.  
75-4B 4-6-0 68in 18x28in 225psi 52t 69t 27sq.ft. 1445sq.ft. 265sq.ft.  
76-4K 2-6-0 63in 17½x26in 225psi 51t 60t 23sq.ft. 1190sq.ft. 255sq.ft. Cf. LMS 4F
77-3K 2-6-0 63in 17½x26in 200psi 49t 58t 20sq.ft. 1050sq.ft. 190sq.ft.  
78-2K 2-6-0 60in 16½x24in 200psi 41t 50t 18sq.ft. 1025sq.ft. 135sq.ft. Cf. LMS 2F
80-4LT 2-6-4T 68in 18x28in 225psi 54t 88t 27sq.ft. 1365sq.ft. 245sq.ft.  
82-3VT 2-6-2T 63in 17½x26in 200psi 49t 75t 20sq.ft. 1050sq.ft. 190sq.ft. 3K tank
84-2VT 2-6-2T 60in 16½x24in 200psi 42t 67t 18sq.ft. 1025sq.ft. 135sq.ft. 2K tank
90-9R 2-10-0 60in 20x28in 250psi 78t 87t 40sq.ft. 2015sq.ft. 535sq.ft.  
90-9R 2-10-0 60in 20x28in 250psi 80t 89t 40sq.ft. 2015sq.ft. 535sq.ft. Stoker
90-9R 2-10-0 60in 20x28in 250psi 79t 90t 40sq.ft. 1430sq.ft. 410sq.ft. Crosti
90-9R 2-10-0 60in 20x28in 250psi 75t 84t 40sq.ft. 1430sq.ft. 410sq.ft. Ex Crosti

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