Boston & Maine 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-13	4-4-0	63in	17x24in	150psi	25t	39t	16sq.ft.	1115sq.ft.	none	Rebuilt
A-18	4-4-0	63in	17x24in	145psi	24t	38t	16sq.ft.	1145sq.ft.	none
A-23-a	4-4-0	69in	17x24in	145psi	28t	44t	18sq.ft.	1360sq.ft.	none
A-23-b	4-4-0	63in	17x24in	150psi	29t	44t	18sq.ft.	1360sq.ft.	none	Or 145psi
A-24	4-4-0	63in	17x24in	150psi	28t	44t	18sq.ft.	1375sq.ft.	none
A-25	4-4-0	63in	17x24in	150psi	30t	45t	18sq.ft.	1390sq.ft.	none
A-25	4-4-0	63in	17x24in	150psi	28t	43t	18sq.ft.	1660sq.ft.	none	Rebuilt
A-26	4-4-0	69in	18x22in	150psi	30t	46t	19sq.ft.	1375sq.ft.	none
A-28	4-4-0	63in	17x24in	145psi	27t	43t	18sq.ft.	1440sq.ft.	none	Or 140psi
A-30	4-4-0	69in	18x22in	160psi	30t	47t	17sq.ft.	1555sq.ft.	none
A-34-a	4-4-0	69in	18x24in	160psi	31t	48t	19sq.ft.	1475sq.ft.	none
A-35-a	4-4-0	63in	18x22in	150psi	29t	45t	17sq.ft.	1380sq.ft.	none
A-35-b	4-4-0	63in	18x22in	160psi	31t	50t	17sq.ft.	1625sq.ft.	none
A-36-a	4-4-0	63in	18x24in	160psi	30t	46t	19sq.ft.	1520sq.ft.	none
A-36-b	4-4-0	63in	18x24in	150psi	30t	46t	19sq.ft.	1380sq.ft.	none
A-36-c	4-4-0	63in	18x24in	150psi	30t	46t	19sq.ft.	1520sq.ft.	none
A-37-a	4-4-0	63in	18x24in	145psi	27t	43t	19sq.ft.	1380sq.ft.	none
A-37-d,f	4-4-0	63in	18x24in	150psi	29t	44t	19sq.ft.	1395sq.ft.	none	Or 145psi
A-37-e	4-4-0	63in	18x24in	150psi	29t	44t	19sq.ft.	1335sq.ft.	none
A-37-g	4-4-0	63in	18x24in	150psi	30t	46t	19sq.ft.	1395sq.ft.	none
A-39-a	4-4-0	67in	18x24in	150psi	30t	47t	19sq.ft.	1630sq.ft.	none
A-39-b	4-4-0	67in	18x24in	150psi	30t	47t	19sq.ft.	1605sq.ft.	none
A-39-c,d	4-4-0	69in	18x24in	160psi	31t	48t	19sq.ft.	1685sq.ft.	none	Or 175psi
A-39-e	4-4-0	67in	18x24in	175psi	31t	48t	19sq.ft.	1685sq.ft.	none	Or 160psi
A-41	4-4-0	69in	18x24in	190psi	34t	52t	26sq.ft.	1750sq.ft.	none	A-41-a,b,c,d,e
A-41-f	4-4-0	69in	18x24in	190psi	36t	56t	26sq.ft.	1720sq.ft.	none
A-46	4-4-0	73in	19x26in	200psi	39t	57t	30sq.ft.	2165sq.ft.	none
A-47	4-4-0	73in	19x24in	180psi	37t	57t	26sq.ft.	2000sq.ft.	none	Or 63in
B-10	2-6-0	57in	18x24in	150psi	47t	54t	19sq.ft.	1520sq.ft.	none	WN&R 22
B-11-b	2-6-0	63in	20x24in	175psi	50t	58t	28sq.ft.	1665sq.ft.	none	Fitchburg 260
B-12	2-6-0	57in	19x26in	160psi	50t	58t	30sq.ft.	1715sq.ft.	none	Fitchburg 228
B-15	2-6-0	63in	19x26in	200psi	56t	65t	30sq.ft.	1895sq.ft.	none
C-3-b	4-6-0	55in	18x24in	150psi	36t	48t	19sq.ft.	1530sq.ft.	none	Or 140psi
C-6-a	4-6-0	55in	18x24in	150psi	39t	51t	23sq.ft.	1640sq.ft.	none	B&L 174
C-13-a	4-6-0	58in	19x26in	150psi	40t	53t	19sq.ft.	1725sq.ft.	none	222 tubes
C-13-a	4-6-0	58in	19x26in	150psi	40t	53t	19sq.ft.	1910sq.ft.	none	248 tubes
C-15-a	4-6-0	63in	19x26in	180psi	48t	63t	28sq.ft.	1995sq.ft.	none	271 tubes
C-15-b,c	4-6-0	63in	19x26in	180psi	48t	63t	28sq.ft.	1970sq.ft.	none	267 tubes
C-15-d	4-6-0	67in	19x26in	180psi	50t	65t	28sq.ft.	1995sq.ft.	none	Ex C-15-a
C-15-e	4-6-0	67in	19x26in	180psi	50t	65t	28sq.ft.	1970sq.ft.	none	Ex C-15-b
C-15-g	4-6-0	63in	19x26in	180psi	48t	64t	28sq.ft.	1930sq.ft.	none	Ex C-16
C-15-h	4-6-0	67in	19x26in	180psi	49t	66t	28sq.ft.	1930sq.ft.	none	Ex C-16
C-16	4-6-0	63in	21(1)/32(1)x26in	200psi	47t	64t	27sq.ft.	1995sq.ft.	none
C-19	4-6-0	69in	20x26in	180psi	52t	75t	35sq.ft.	1840sq.ft.	420sq.ft.	Fitchburg 313
C-20	4-6-0	63in	20x26in	180psi	54t	72t	36sq.ft.	2705sq.ft.	none
C-21	4-6-0	72in	20x26in	200psi	58t	77t	46sq.ft.	2835sq.ft.	none
D-2	0-4-4T	55in	16x20in	150psi	30t	45t	13sq.ft.	950sq.ft.	none
E-1-a	2-6-4T	55in	17x24in	175psi	41t	60t	18sq.ft.	950sq.ft.	none
E-1-b	2-6-4T	55in	17x24in	140psi	41t	60t	18sq.ft.	950sq.ft.	none
F-5	0-4-0	51in	16x22in	130psi	32t	32t	12sq.ft.	960sq.ft.	none
F-8	0-4-0T	51in	16x24in	130psi	41t	41t	13sq.ft.	880sq.ft.	none	Rebuilt
F-9	0-4-0	51in	16x24in	130psi	32t	32t	12sq.ft.	895sq.ft.	none
G-3	0-6-0	51in	16x22in	150psi	37t	37t	16sq.ft.	1165sq.ft.	none
G-4-a	0-6-0	51in	17x24in	140psi	40t	40t	15sq.ft.	1250sq.ft.	none
G-7	0-6-0	51in	18x24in	150psi	42t	42t	16sq.ft.	1405sq.ft.	none	Or 140psi
G-8	0-6-0	51in	18x24in	150psi	44t	44t	17sq.ft.	1280sq.ft.	none
G-9-a	0-6-0	51in	18x24in	150psi	45t	45t	18sq.ft.	1150sq.ft.	none
G-9-b	0-6-0	51in	18x24in	150psi	45t	45t	18sq.ft.	1330sq.ft.	none	Also G-9-c
G-10	0-6-0	51in	19x24in	160psi	56t	56t	23sq.ft.	1635sq.ft.	none
G-11-a	0-6-0	51in	19x26in	200psi	64t	64t	28sq.ft.	1770sq.ft.	none
G-11-b	0-6-0	51in	20x26in	185psi	68t	68t	28sq.ft.	1335sq.ft.	290sq.ft.
G-11-c	0-6-0	51in	21x28in	190psi	74t	74t	33sq.ft.	1890sq.ft.	475sq.ft.	USRA
H-1	0-8-0	57in	25x30in	180psi	104t	104t	53sq.ft.	2575sq.ft.	590sq.ft.
H-2	0-8-0	52in	25x28in	175psi	100t	100t	47sq.ft.	2775sq.ft.	640sq.ft.
H-3	0-8-0	51in	23x28in	250psi	111t	111t	47sq.ft.	2750sq.ft.	610sq.ft.
J-1	4-4-2	79in	19x28in	200psi	39t	71t	42sq.ft.	2895sq.ft.	none
K-5	2-8-0	61in	20x30in	200psi	65t	75t	47sq.ft.	2860sq.ft.	none
K-5-d	2-8-0	61in	20x30in	200psi	65t	75t	47sq.ft.	2045sq.ft.	435sq.ft.
K-6	2-8-0	61in	22(1)/35(1)x32in	200psi	68t	79t	47sq.ft.	2860sq.ft.	none
K-6-a	2-8-0	61in	20x32in	200psi	69t	81t	47sq.ft.	2860sq.ft.	none	Ex K-6
K-7-a	2-8-0	61in	20x30in	200psi	67t	77t	47sq.ft.	2860sq.ft.	none
K-7-b	2-8-0	61in	20x30in	200psi	69t	80t	47sq.ft.	2045sq.ft.	435sq.ft.
K-7-c	2-8-0	61in	20x30in	200psi	75t	85t	47sq.ft.	2045sq.ft.	435sq.ft.
K-8	2-8-0	61in	24x30in	200psi	89t	100t	53sq.ft.	2370sq.ft.	520sq.ft.
L-1	4-8-0	54in	20x28in	180psi	58t	76t	30sq.ft.	2675sq.ft.	none	Fitchburg 500
M-1	2-6-6-2	61in	22/35x30in	200psi	123t	143t	50sq.ft.	4645sq.ft.	none	Mallet
M-2	0-8-8-0	51in	26/40x28in	230psi	205t	205t	77sq.ft.	5215sq.ft.	1850sq.ft.	235 tubes
M-2	0-8-8-0	51in	26/40x28in	230psi	205t	205t	77sq.ft.	5145sq.ft.	1850sq.ft.	230 tubes
N-1	2-8-2	63in	28x32in	170psi	106t	143t	70sq.ft.	4180sq.ft.	845sq.ft.	Erie N1
P-1	4-6-2	73in	22x28in	200psi	64t	99t	50sq.ft.	3660sq.ft.	none
P-1-a	4-6-2	73in	22x28in	200psi	68t	107t	50sq.ft.	2730sq.ft.	650sq.ft.	Also P-1-b
P-2-a	4-6-2	73in	22x28in	200psi	66t	106t	53sq.ft.	3945sq.ft.	none
P-2-b	4-6-2	73in	22x28in	200psi	70t	111t	53sq.ft.	3025sq.ft.	685sq.ft.	Also P-2-c,d
P-2-b	4-6-2	73in	22x28in	200psi	72t	113t	53sq.ft.	3095sq.ft.	685sq.ft.	Syphons
P-3	4-6-2	73in	24x28in	180psi	73t	115t	53sq.ft.	2950sq.ft.	785sq.ft.
P-4	4-6-2	80in	23x28in	260psi	95t	154t	67sq.ft.	3845sq.ft.	965sq.ft.	Booster
P-5	4-6-2	69in	25x28in	200psi	86t	135t	69sq.ft.	3500sq.ft.	740sq.ft.	DLW 1151
R-1	4-8-2	73in	28x31in	240psi	122t	188t	79sq.ft.	4510sq.ft.	1925sq.ft.
S-1-a	2-10-2	61in	29x32in	190psi	144t	170t	80sq.ft.	4645sq.ft.	1145sq.ft.	Also S-1-b
S-1-c	2-10-2	61in	29x32in	190psi	132t	167t	80sq.ft.	4645sq.ft.	1145sq.ft.
T-1	2-8-4	63in	28x30in	240psi	114t	181t	100sq.ft.	5135sq.ft.	2110sq.ft.	Booster