Southern Pacific steam locomotives

Class	Wheel Arr.	Dr. Dia.	Cylinders Diam. x Stroke	Boiler Press.	Ad. Wt.	EW WO	Grate Area	Evap. Surface	Sup. Surface	Remarks
A-3	4-4-2	81in	20x28in	210psi	53t	96t	50sq.ft.	2305sq.ft.	430sq.ft.
A-3	4-4-2	81in	20x28in	210psi	54t	105t	50sq.ft.	2305sq.ft.	430sq.ft.	Booster
A-5	4-4-2	81in	21x28in	210psi	49t	92t	50sq.ft.	2305sq.ft.	430sq.ft.	Or 20x28in
A-6	4-4-2	81in	22x28in	210psi	57t	111t	50sq.ft.	2305sq.ft.	430sq.ft.	Booster
AC-1, AC-2	2-8-8-2	57in	22x30in(4)	210psi	200t	218t	68sq.ft.	4875sq.ft.	2150sq.ft.	Cab forward
AC-3	2-8-8-2	57in	22x30in(4)	210psi	200t	218t	68sq.ft.	4415sq.ft.	840sq.ft.	Cab forward
AC-4	4-8-8-2	63in	24x32in(4)	235psi	216t	279t	139sq.ft.	6505sq.ft.	2990sq.ft.	Cab forward
AC-4	4-8-8-2	63in	24x32in(4)	235psi	216t	279t	139sq.ft.	6505sq.ft.	2300sq.ft.	1950
AC-5	4-8-8-2	63in	24x32in(4)	235psi	219t	282t	139sq.ft.	6505sq.ft.	2990sq.ft.	Cab forward
AC-5	4-8-8-2	63in	24x32in(4)	235psi	219t	282t	139sq.ft.	6505sq.ft.	2300sq.ft.	1948
AC-6	4-8-8-2	63in	24x32in(4)	250psi	234t	290t	139sq.ft.	6505sq.ft.	2990sq.ft.	Cab forward
AC-6	4-8-8-2	63in	24x32in(4)	250psi	237t	294t	139sq.ft.	6505sq.ft.	2300sq.ft.	1950
AC-7	4-8-8-2	63in	24x32in(4)	250psi	233t	290t	139sq.ft.	6505sq.ft.	2990sq.ft.	Cab forward
AC-7	4-8-8-2	63in	24x32in(4)	250psi	233t	290t	139sq.ft.	6505sq.ft.	2300sq.ft.	1950
AC-8	4-8-8-2	63in	24x32in(4)	250psi	241t	298t	139sq.ft.	6505sq.ft.	2990sq.ft.	Cab forward
AC-8	4-8-8-2	63in	24x32in(4)	250psi	241t	298t	139sq.ft.	6505sq.ft.	2300sq.ft.	1950
AC-9	2-8-8-4	63in	24x32in(4)	250psi	241t	313t	146sq.ft.	6920sq.ft.	2830sq.ft.
AC-9	2-8-8-4	63in	24x32in(4)	250psi	237t	307t	146sq.ft.	6990sq.ft.	2495sq.ft.	1950
AC-10 to 12	4-8-8-2	63in	24x32in(4)	250psi	241t	298t	139sq.ft.	6505sq.ft.	2990sq.ft.	Cab forward
AC-10 to 12	4-8-8-2	63in	24x32in(4)	250psi	241t	298t	139sq.ft.	6505sq.ft.	2300sq.ft.	1950
AM-2	4-6-6-2	63in	22x28in(4)	210psi	162t	192t	70sq.ft.	4365sq.ft.	1025sq.ft.	Ex MM-2
B-1	2-8-4	63in	27½x30in	240psi	119t	185t	100sq.ft.	5130sq.ft.	2135sq.ft.	B&M T-1
C-2	2-8-0	57in	22x34in	185psi	78t	86t	35sq.ft.	3045sq.ft.	none	SP FB
C-2	2-8-0	57in	22x34in	190psi	82t	91t	35sq.ft.	2250sq.ft.	650sq.ft.	Rebuilt
C-3	2-8-0	57in	23(1)/35(1)x34in	220psi	80t	91t	55sq.ft.	3600sq.ft.	none
C-4	2-8-0	57in	22x34in	185psi	80t	90t	54sq.ft.	3365sq.ft.	none
C-4	2-8-0	57in	22x34in	190psi	83t	95t	54sq.ft.	2695sq.ft.	555sq.ft.	Rebuilt
C-5	2-8-0	57in	22x30in	200psi	82t	91t	54sq.ft.	3365sq.ft.	none
C-5	2-8-0	57in	22x30in	210psi	85t	95t	54sq.ft.	2700sq.ft.	570sq.ft.	Rebuilt
C-8 to 10	2-8-0	57in	22x30in	210psi	87t	98t	50sq.ft.	2900sq.ft.	600sq.ft.
C-8 to 10	2-8-0	57in	22x30in	210psi	91t	102t	50sq.ft.	2900sq.ft.	600sq.ft.	Feedwater htr.
C-10	2-8-0	57in	22x30in	210psi	88t	99t	54sq.ft.	2700sq.ft.	570sq.ft.	C-5 boiler
C-11	2-8-0	61in	25x30in	190psi	96t	110t	53sq.ft.	2710sq.ft.	590sq.ft.	SLSW K-1
C-11	2-8-0	61in	25x30in	190psi	96t	110t	53sq.ft.	2750sq.ft.	590sq.ft.	2862
C-12	2-8-0	61in	25x30in	200psi	97t	111t	53sq.ft.	2750sq.ft.	590sq.ft.	SLSW K-1
C-12	2-8-0	61in	25x30in	200psi	97t	111t	53sq.ft.	2725sq.ft.	590sq.ft.	2866
F-1	2-10-2	63in	27½x32in	200psi	127t	160t	63sq.ft.	4455sq.ft.	975sq.ft.
F-2	2-10-2	57in	26¼x32in	200psi	123t	157t	63sq.ft.	4455sq.ft.	975sq.ft.
F-3	2-10-2	63in	29½x32in	200psi	136t	176t	83sq.ft.	5100sq.ft.	1230sq.ft.
F-4	2-10-2	63in	29½x32in	200psi	144t	186t	83sq.ft.	5100sq.ft.	1230sq.ft.	Coal, booster
F-4, F-5	2-10-2	63in	29½x32in	200psi	139t	180t	83sq.ft.	5100sq.ft.	1230sq.ft.	Booster
F-6	2-10-2	63in	29½x32in	200psi	142t	185t	83sq.ft.	5100sq.ft.	1230sq.ft.	Booster
GS-1	4-8-4	73in	27x30in	250psi	119t	201t	90sq.ft.	4855sq.ft.	2565sq.ft.	Booster
GS-1	4-8-4	73in	27x30in	250psi	119t	201t	90sq.ft.	4855sq.ft.	1865sq.ft.	1950
GS-2	4-8-4	73in	27x30in	250psi	121t	203t	90sq.ft.	4855sq.ft.	2565sq.ft.	Streamlined
GS-2	4-8-4	73in	27x30in	250psi	121t	203t	90sq.ft.	4855sq.ft.	1835sq.ft.	1950
GS-3	4-8-4	80in	26x32in	280psi	121t	209t	90sq.ft.	4890sq.ft.	2565sq.ft.	Streamlined
GS-3	4-8-4	80in	26x32in	280psi	121t	209t	90sq.ft.	4890sq.ft.	1835sq.ft.	1950
GS-4	4-8-4	80in	25½x32in	300psi	125t	215t	90sq.ft.	4890sq.ft.	2565sq.ft.	Streamlined
GS-4	4-8-4	80in	25½x32in	300psi	125t	215t	90sq.ft.	4890sq.ft.	1835sq.ft.	1950
GS-5	4-8-4	80in	25½x32in	300psi	126t	219t	90sq.ft.	4890sq.ft.	1835sq.ft.	Streamlined
GS-6	4-8-4	73in	27x30in	260psi	123t	212t	90sq.ft.	4855sq.ft.	1835sq.ft.	Booster
GS-7	4-8-4	70in	26x30in	250psi	110t	190t	88sq.ft.	4725sq.ft.	2060sq.ft.	SLSW L-1
GS-8	4-8-4	70in	26x30in	250psi	118t	199t	88sq.ft.	4725sq.ft.	1960sq.ft.	SLSW L-1
M-4	2-6-0	63in	20x28in	190psi	58t	68t	30sq.ft.	1510sq.ft.	270sq.ft.	SP ED
M-4	2-6-0	63in	20x28in	190psi	61t	72t	30sq.ft.	1510sq.ft.	270sq.ft.	Heavy frames
M-6	2-6-0	63in	21x28in	200psi	68t	79t	50sq.ft.	1760sq.ft.	345sq.ft.	Baldwin
M-6	2-6-0	63in	21x28in	200psi	69t	81t	50sq.ft.	1760sq.ft.	345sq.ft.	SP shops
M-6	2-6-0	63in	21x28in	200psi	72t	84t	50sq.ft.	1760sq.ft.	345sq.ft.	Feedwater htr.
M-6, M-8	2-6-0	63in	21x28in	200psi	72t	84t	50sq.ft.	2005sq.ft.	375sq.ft.	Taper boiler
M-7	2-6-0	63in	15½/26x28in	200psi	70t	80t	50sq.ft.	2340sq.ft.	none	Vauclain cpd.
M-9	2-6-0	63in	21x28in	210psi	68t	80t	50sq.ft.	1825sq.ft.	375sq.ft.	184 tubes
M-9	2-6-0	63in	21x28in	210psi	73t	86t	50sq.ft.	1825sq.ft.	375sq.ft.	Feedwater htr.
M-9	2-6-0	63in	21x28in	210psi	71t	83t	50sq.ft.	1715sq.ft.	375sq.ft.	168 tubes
M-9, M-11	2-6-0	63in	21x28in	210psi	69t	81t	50sq.ft.	1920sq.ft.	355sq.ft.	197 tubes
M-11	2-6-0	63in	22x28in	200psi	69t	82t	50sq.ft.	1920sq.ft.	355sq.ft.
M-11	2-6-0	63in	22x28in	200psi	73t	86t	50sq.ft.	1920sq.ft.	355sq.ft.	Feedwater htr.
MC-1	2-8-8-2	57in	26/40x30in	200psi	179t	193t	68sq.ft.	5175sq.ft.	1220sq.ft. (Preheater)
MC-2	2-8-8-2	57in	26/40x30in	200psi	179t	198t	68sq.ft.	5175sq.ft.	1220sq.ft. (Pre.),cab fwd
MC-4	2-8-8-2	57in	26/40x30in	200psi	181t	191t	68sq.ft.	5175sq.ft.	1220sq.ft. (Pre.),cab fwd
MC-6	2-8-8-2	57in	26/40x30in	200psi	182t	198t	68sq.ft.	4415sq.ft.	840sq.ft.	Cab forward
Mk-2, Mk-4	2-8-2	57in	23½x30in	210psi	94t	120t	70sq.ft.	4205sq.ft.	860sq.ft.
Mk-2, Mk-4	2-8-2	57in	23½x30in	210psi	101t	130t	70sq.ft.	4205sq.ft.	860sq.ft.	Feedwater htr.
Mk-4	2-8-2	57in	23½x30in	210psi	104t	135t	70sq.ft.	4205sq.ft.	860sq.ft.	Heavy frame
Mk-5, Mk-6	2-8-2	63in	26x28in	210psi	95t	127t	70sq.ft.	4205sq.ft.	860sq.ft.
Mk-5, Mk-6	2-8-2	63in	26x28in	210psi	104t	136t	70sq.ft.	4205sq.ft.	860sq.ft.	Heavy frame
Mk-5, Mk-6	2-8-2	63in	26x28in	210psi	105t	136t	70sq.ft.	4205sq.ft.	860sq.ft.	Feedwater htr.
Mk-5, Mk-6	2-8-2	63in	26x28in	210psi	108t	138t	70sq.ft.	4205sq.ft.	860sq.ft.	Heavy frame
Mk-7 to 9	2-8-2	63in	27x30in	205psi	112t	146t	70sq.ft.	4155sq.ft.	1010sq.ft.	EPSW H-1,2s
Mk-7 to 9	2-8-2	63in	27x30in	176psi	117t	152t	70sq.ft.	4155sq.ft.	1030sq.ft.	Feedwater htr.
Mk-7 to 9	2-8-2	63in	27x30in	205psi	117t	152t	70sq.ft.	4155sq.ft.	1010sq.ft.	1950
Mk-10	2-8-2	52in	24½x28in	180psi	94t	119t	63sq.ft.	3550sq.ft.	860sq.ft.	C&IM E-4
Mk-11	2-8-2	52in	22x28in	200psi	78t	102t	54sq.ft.	2975sq.ft.	640sq.ft.	C&IM E-1
MM-2	2-6-6-2	63in	25/38x28in	200psi	145t	175t	70sq.ft.	4365sq.ft.	1025sq.ft.	Cab forward
MM-2	4-6-6-2	63in	25/38x28in	200psi	145t	180t	70sq.ft.	4365sq.ft.	1025sq.ft.	Rebuilt
MM-3	2-6-6-2	57in	23½/37x32in	220psi	171t	203t	67sq.ft.	4905sq.ft.	1140sq.ft.	VT&S
Mt-1,3 to 5	4-8-2	73in	28x30in	210psi	112t	167t	76sq.ft.	4555sq.ft.	1160sq.ft.
Mt-1, Mt-3	4-8-2	73in	28x30in	210psi	112t	167t	78sq.ft.	4550sq.ft.	1135sq.ft.	1950
Mt-2	4-8-2	73in	29x30in	225psi	119t	177t	84sq.ft.	5060sq.ft.	1380sq.ft.	EPSW L1s
Mt-4	4-8-2	73in	28x30in	210psi	112t	167t	76sq.ft.	4545sq.ft.	1135sq.ft.	1950
Mt-5	4-8-2	73in	28x30in	210psi	112t	167t	76sq.ft.	4515sq.ft.	1135sq.ft.	1951
P-1	4-6-2	77in	22x28in	210psi	64t	101t	50sq.ft.	2750sq.ft.	550sq.ft.
P-1	4-6-2	77in	22x28in	210psi	69t	111t	50sq.ft.	2750sq.ft.	550sq.ft.	Feedwater htr.
P-1	4-6-2	77in	22x28in	210psi	73t	113t	50sq.ft.	2750sq.ft.	550sq.ft.	Booster
P-1	4-6-2	77in	22x28in	210psi	74t	116t	50sq.ft.	2750sq.ft.	550sq.ft.	Feedwater htr.
P-3	4-6-2	77in	22x28in	210psi	64t	101t	50sq.ft.	2750sq.ft.	550sq.ft.	Baldwin
P-3	4-6-2	77in	22x28in	210psi	68t	106t	50sq.ft.	2750sq.ft.	550sq.ft.	SP shops
P-4	4-6-2	77in	23x28in	210psi	70t	120t	50sq.ft.	2750sq.ft.	550sq.ft.	Booster
P-5	4-6-2	77in	22x28in	210psi	64t	100t	50sq.ft.	2750sq.ft.	550sq.ft.
P-6	4-6-2	77in	25x28in	200psi	78t	126t	70sq.ft.	2980sq.ft.	805sq.ft.
P-6	4-6-2	77in	25x28in	200psi	81t	130t	70sq.ft.	2980sq.ft.	770sq.ft.	Feedwater htr.
P-7	4-6-2	73in	25x28in	200psi	78t	125t	70sq.ft.	2980sq.ft.	805sq.ft.
P-8, P-10	4-6-2	73in	25x30in	200psi	82t	138t	70sq.ft.	3350sq.ft.	840sq.ft.
P-8, P-10	4-6-2	73in	25x30in	200psi	83t	139t	70sq.ft.	3350sq.ft.	840sq.ft.	Booster
P-12	4-6-2	73in	27x28in	205psi	86t	140t	70sq.ft.	4155sq.ft.	1005sq.ft.	EPSW E3s
P-14	4-6-2	77in	25x28in	210psi	84t	139t	70sq.ft.	3955sq.ft.	770sq.ft.	Streamlined
S-1	0-6-0	51in	18x24in	160psi	45t	45t	20sq.ft.	990sq.ft.	none
S-2	0-6-0	51in	18x24in	160psi	45t	45t	16sq.ft.	1405sq.ft.	none
S-5	0-6-0	57in	19x26in	180psi	59t	59t	30sq.ft.	1810sq.ft.	none
S-6	0-6-0	57in	19x26in	180psi	62t	62t	31sq.ft.	1815sq.ft.	none	Vanderbilt
S-7	0-6-0	57in	20x26in	180psi	68t	68t	30sq.ft.	1805sq.ft.	none
S-8	0-6-0	51in	19x26in	175psi	63t	63t	30sq.ft.	1580sq.ft.	none
S-9	0-6-0	51in	19x26in	190psi	66t	66t	30sq.ft.	1580sq.ft.	none
S-10	0-6-0	51in	19x26in	190psi	70t	70t	30sq.ft.	1280sq.ft.	255sq.ft.	133 tubes
S-10	0-6-0	51in	19x26in	190psi	70t	70t	30sq.ft.	1250sq.ft.	255sq.ft.	129 tubes
S-10	0-6-0	51in	19x26in	175psi	70t	70t	30sq.ft.	1250sq.ft.	255sq.ft.	Radial stays
S-11	0-6-0	51in	19x26in	190psi	67t	67t	30sq.ft.	1250sq.ft.	255sq.ft.
S-12	0-6-0	57in	20x26in	200psi	70t	70t	30sq.ft.	1250sq.ft.	255sq.ft.
S-22	0-6-0	51in	20x26in	180psi	67t	67t	30sq.ft.	1560sq.ft.	none
SE-1	0-8-0	46in	21x24in	160psi	61t	61t	28sq.ft.	1705sq.ft.	none
SE-4	0-8-0	57in	23¾x30in	210psi	104t	104t	50sq.ft.	2305sq.ft.	430sq.ft.	Ex A
SP-1 to 3	4-10-2	63in	25x28(1):32in	225psi	144t	201t	90sq.ft.	5685sq.ft.	1385sq.ft.	Simple
T-3	4-6-0	69in	20x26in	180psi	51t	65t	28sq.ft.	1885sq.ft.	none	SP DC
T-23	4-6-0	63in	21x28in	210psi	71t	89t	49sq.ft.	1980sq.ft.	385sq.ft.	197 tubes
T-23	4-6-0	63in	21x28in	210psi	74t	93t	49sq.ft.	1980sq.ft.	385sq.ft.	Feedwater htr.
T-23	4-6-0	63in	21x28in	210psi	74t	93t	49sq.ft.	1965sq.ft.	370sq.ft.	187 tubes
T-25	4-6-0	69in	20x28in	200psi	61t	78t	30sq.ft.	2560sq.ft.	none	.
T-26	4-6-0	69in	21x28in	200psi	69t	85t	49sq.ft.	1980sq.ft.	370sq.ft.	197 tubes
T-26	4-6-0	69in	21x28in	200psi	69t	85t	49sq.ft.	1915sq.ft.	370sq.ft.	182 tubes
T-28, T-31	4-6-0	63in	22x28in	210psi	73t	94t	32sq.ft.	2425sq.ft.	465sq.ft.
T-32	4-6-0	69in	23x28in	210psi	79t	99t	32sq.ft.	2425sq.ft.	465sq.ft.
Tw-2, Tw-3	4-8-0	51in	20x26in	170psi	54t	64t	31sq.ft.	1875sq.ft.	none	SP GB, GC
Tw-8	4-8-0	55in	21x32in	180psi	70t	87t	35sq.ft.	2815sq.ft.	none	SP GH
Tw-8	4-8-0	55in	21x32in	190psi	73t	91t	35sq.ft.	2255sq.ft.	465sq.ft.	Rebuilt