ALCO FREIGHT UNITS

FOR MODELING INFORMATION CLICK ON THE MODEL HEADING

FA-1-424 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS PHASE TRUCKS
12 BRAZIL 3201-3212   AAR "B"
8 CANADIAN NATIONAL 9400-9407   AAR "B"
29 CANADIAN PACIFIC 4000-4027,4016   AAR "B"
16 CHICAGO, RI & PACIFIC 145-160   AAR "B"
22 ERIE 725A/D-735A/D   AAR "B"
8 GREAT NORTHERN 276A/C,310 A/C,440A/D,442A/D   AAR "B"
5 GREEN BAY AND WESTERN 501-503-506,507   AAR "B"
55 GULF,MOBILE & OHIO 700-754   AAR "B"
10 LEHIGH & NEW ENGLAND 701-710   AAR "B"
10 LEHIGH VALLEY 530-548(EVEN NOS   AAR "B"
18 MISSOURI, KANSAS & TEXAS 326A/C-334A/C   AAR "B"
30 MISSOURI PACIFIC 301-330 30   AAR "B"
44 NEW YORK CENTRAL 1000-1043   AAR "B"
30 NY, NEW HAVEN & HARTFORD 0400-0429   AAR "B"
8 PENNSYLVANIA 9600-9607   AAR "B"
6 READING 300-305   AAR "B"
32 SAINT LOUIS-SAN FRANCISCO 5200-5231   AAR "B"
3 SEABOARD AIRLINE 4200-4202   AAR "B"
5 SCOP (MEXICO) 23031-23034,23039   AAR "B"
14 SPOKANE, PORT & SEATTLE 850-861,866-867   AAR "B"
22 SOO LINE 205A/B-211A/B,2200A/B-2223A/B   AAR "B"
5 TENNESSEE CENTRAL 801-805   AAR "B"
44 UNION PACIFIC 1500A-1523A,1542A-1543A,1626-1643   AAR "B"
10 WABASH 1200A-1209A   AAR "B"

FB-1-233 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS PHASE TRUCKS
24 CANADIAN PACIFIC 4400-4423   AAR "B"
9 CHICAGO, RI & PACIFIC 128B-135B   AAR "B"
33 ERIE 725B/C-735A/D   AAR "B"
5 GREAT NORTHERN 310 B,440 B/C,442B/C   AAR "B"
34 GULF,MOBILE & OHIO B1-B33   AAR "B"
3 LEHIGH & NEW ENGLAND 751-753   AAR "B"
15 MISSOURI PACIFIC 1B-310B,321B-325B   AAR "B"
23 NEW YORK CENTRAL 2300-2322   AAR "B"
15 NY, NEW HAVEN & HARTFORD 0450-0464   AAR "B"
8 PENNSYLVANIA 9600B-9607B   AAR "B"
6 READING 300B-305B   AAR "B"
16 SAINT LOUIS-SAN FRANCISCO 5300-5315   AAR "B"
3 SEABOARD AIRLINE 4300-4302   AAR "B"
8 SPOKANE, PORT & SEATTLE 200-205,210-211   AAR "B"
1 TENNESSEE CENTRAL 801B   AAR "B"
44 UNION PACIFIC 1524B-1541B,1617B/C-1642B/C   AAR "B"
5 WABASH 1200B-1204B   AAR "B"

FA-2-359 BUILT

QUAN RR FIRST OWNER ROAD NUMBERS PHASE TRUCKS
14 ANN ARBOR 50/50A-56/56A   AAR "B"
28 BALTIMORE & OHIO 4000-4007,4018-4037   AAR "B"
25 CANADIAN NATIONAL 9408-9456   AAR "B"
20 CANADIAN PACIFIC 4042-4051,4084-4093   AAR "B"
2 CHICAGO & NORTHWESTERN 4103A,4104A   AAR "B"
12 CUBA 1600-1605,1650-1655   AAR "B"
8 ERIE 736A/D-739A/D   AAR "B"
2 GREAT NORTHERN 278A,279A   AAR "B"
8 LEHIGH VALLEY 580-594(EVEN NOS   AAR "B"
39 LOUISVILLE & NASHVILLE 300-321,353-369   AAR "B"
1 MISSOURI, KANSAS & TEXAS 331A   AAR "B"
43 MISSOURI PACIFIC 331-360,374-386   AAR "B"
18 NATIONAL DE MEXICO 6507A-6522A,6519A   AAR "B"
80 NEW YORK CENTRAL 1044-1123   AAR "B"
23 PAKISTAN 2001-2023   AAR "B"
24 PENNSYLVANIA 9608-9631   AAR "B"
6 SCOP (MEXICO) 7121-8-7121-13   AAR "B"
2 SPOKANE, PORT & SEATTLE 868-869   AAR "B"
4 WESTERN MARYLAND 301-304   AAR "B"

FB-2-230 BUILT

QUAN RR FIRST OWNER ROAD NUMBERS PHASE TRUCKS
16 BALTIMORE & OHIO 5000-5003,5009-5020   AAR "B"
15 CANADIAN NATIONAL 9409-9437   AAR "B"
6 CANADIAN PACIFIC 4456-4470   AAR "B"
2 CHICAGO & NORTHWESTE 4103B,4104B   AAR "B"
8 ERIE 736B/C-739B/C   AAR "B"
2 GREAT NORTHERN 278B,279B   AAR "B"
4 GULF, MOBILE & OHIO B34-B37   AAR "B"
4 LEHIGH VALLEY ) 581-587(ODD)   AAR "B"
14 LOUISVILLE & NASHVIL 200-211,330-331   AAR "B"
40 MISSOURI PACIFIC 331B-335B,345B-356B,370B-392B   AAR "B"
23 NATIONAL DE MEXICO 6507B-6522B,6519B   AAR "B"
50 NEW YORK CENTRAL 3323-3372   AAR "B"
5 NYNH&H 465-469   AAR "B"
12 PENNSYLVANIA 9608B-9630B   AAR "B"
2 SPOKANE, PORT & SEAT 212-213   AAR "B"

ALCO FREIGHT MODELS
MODEL FA-1 FB-1 FA-2 FB-2 FPA-2 FPB-2 FPA-4 FPB-4
SPEC DL208 A,B DL209 A,B DL212 A DL213 A DL212 A DL213 A DL218 DL219
ENGINE 1500 HP 1500 HP 1600 HP 1600 HP 1600 HP 1600 HP 1800 HP 1800 HP
ENGINE TYPE 244 12 CYL 244 12 CYL 244 12 CYL 244 12 CYL 244 12 CYL 244 12 CYL 251B 12 CYL 251B 12 CYL
C toC TRUCKS 27'-02" 27'-02" 29'-02" 29'-02" 29'-02" 29'-02" 29'-02" 29'-02"
C TRUCK to FRONT PILOT 12'-00" 10'-00" 11'-09 1/8" 10'-03" 11'-09 1/8" 10'-03" 11'-09 1/8" 10'-03"
C TRUCK to REAR ** 9'-04" 10'-00" 10'-03" 10'-03" 10'-03" 10'-03" 10'-03" 10'-03"
PILOT to REAR ** 48'-06" 47'-02" 51'-02 1/8" 49'-08" 51'-02 1/8" 49'-08" 51'-02 1/8" 49'-08"
TOP ENGINE HOOD 14'-02 1/2" 14'-02 1/2" 14'-02 1/2" 14'-02 1/2" 14'-02 1/2" 14'-02 1/2" 14'-02 1/2" 14'-02 1/2"
TOP CAB HOOD 14'-00" 14'-00" 14'-00" 14'-00" 14'-00" 14'-00" 14'-00" 14'-00"
TOP WALKWAY none none none none none none none none
WIDTH WALKWAY none none none none none none none none
WIDTH CAB 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2"
WIDTH ENGINE HOOD 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2" 9'-10 1/2"
COUPLED LENGTH 51'-06" 50'-02" 53'-06" 52'-08" 53'-06" 52'-08" 53'-06" 52'-08"
TYPE TRUCKS AAR "B" AAR "B" AAR "B" AAR "B" AAR "B" AAR "B" AAR "B" AAR "B"
TRUCK WHB 9'-04" 9'-04" 9'-04" 9'-04" 9'-04" 9'-04" 9'-04" 9'-04"
WHEEL DIA. 40" 40" 40" 40" 40" 40" 40" 40"

Notes for ALCO trucks
c/c trks for all 2 axle trucks are the dimension from center of one truck to the center of the other truck, not the jacking pads or truck bolsters.

c/c trucks for 3 axle trucks are the dimension from one bolster to the other bolster. Bolster is the pivot point of the trucks.

This data is for units as delivered from the manufacturers.

Always refer to pictures of the unit to be modeled as many trucks are interchangeable.
The trucks were sometimes swapped by the Railroads or rebuilders.

Blunt trucks have a wheelbase of 8'-00".

AAR "A" Trucks have a wheelbase of 8'-00"

AAR "B" Trucks have a wheelbase of 9'-04" with GE traction motors.

AAR "B" trucks have a wheelbase of 9'-10" with Westinghouse traction motors.

HI-AD Switcher trucks have the same wheelbases as the AAR "B" depending on the traction motors.

A-1-A Trucks for the RSC-3 & RSC-24 have equal spaced axles of 5'-03" for a total of 10'-06". sideframes are similar to short end of tri-mounts.

A-1-A trucks for RSC-2 have equal spaced axles of 5'-03" for a total of 10'-06" Trucks are special cast units for branchline service

TRI-MOUNTS used on Alco 3 axle Freight units have axles spaced at 5'-07" and 6'-11" for a total of 12'-06".

A-1-A units used on Alco Passenger units have equal spaced axles of 7'-09" for a total of 15'-06".

HI-AD 3 axle trucks have unequal spaced axles of 6'-07 3/8" and 6'-11 5/8" for a total of 13'-07".

C-630's equipped with FM "Trainmaster " trucks have unequal spaced axles of 5'-05" and 7'-03" for a total of 12'-08".

MLW type "B" have a whb of 8'-10"

MLW "Flex" 3 axle have a whb of 11'-02"

More ALCO information
S.A. McCall