ALCO SWITCHER UNITS-SOUTHEASTERN ROADS ONLY

S-1

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
1 CG 6 BLUNT
1 CG 329 BLUNT
4 GM&O 661-664 BLUNT
4 L&N 16-19 BLUNT
52 L&N 24-75 BLUNT
4 L&N 2101-2104 BLUNT
2 L&N 2375-2376 BLUNT
1 N&W(NKP) 2085 BLUNT
1 N&W(Wabash) 3002 BLUNT
1 N&W(Wabash) 3151 BLUNT
4 N&W(Wabash) 3152-3155 BLUNT
1 N&W(Wabash) 3157 BLUNT
1 SAL 1201 BLUNT
2 SOU 2000-2001 BLUNT
1 SOU 2006 BLUNT
3 SOU(AGS) 6500-6502 BLUNT
1 SOU(CNOTP) 6000-6001 BLUNT
1 WM 102 BLUNT

S-2



L&N 22 Custom painted by S.A. McCall

GM&O 1010 Factory painted by Atlas
QUAN FIRST OWNER NUMBERS TRUCKS
1 ACL 602 BLUNT
1 ACL 604 BLUNT
1 ACL 610 BLUNT
1 ACL 612 BLUNT
1 ACL 614 BLUNT
1 ACL 618 BLUNT
1 ACL 620 BLUNT
1 ACL 622 BLUNT
1 ACL 624 BLUNT
1 ACL 626 BLUNT
1 ACL 628 BLUNT
1 ACL 630 BLUNT
1 ACL 632 BLUNT
1 ACL 634 BLUNT
1 ACL 636 BLUNT
1 ACL 638 BLUNT
1 ACL 640 BLUNT
1 ACL 642 BLUNT
3 ACL 44-46 BLUNT
B&O BLUNT
58 C&O 5000-5057 BLUNT
1 CG 21 BLUNT
1 CG 23 BLUNT
1 CG 24 BLUNT
1 CG 28 BLUNT
1 CG 29 BLUNT
6 CG 330-335 BLUNT
GM&O 15-20? BLUNT
7 L&N 2105-2111 BLUNT
1 L&N 2200 BLUNT
5 L&N 2220-2224 BLUNT
2 L&N 2300-2301 BLUNT
7 L&N 2305-2311 BLUNT
5 L&N 2320-2324 BLUNT
5 L&N 2370-2374 BLUNT
19 N&W(NKP) 2025-2043 BLUNT
2 N&W(NKP) 2044-2045 BLUNT
12 N&W(Wabash) 3310-3321 BLUNT
1 N&W(Wabash) 3325 BLUNT
21 RF&P 51-71 BLUNT
3 SAL 1403-1405 BLUNT
10 SAL 1425-1434 BLUNT
25 SOU 2208-2232 BLUNT
3 SOU(CNOTP) 6057-6059 BLUNT
5 WM 140-144 BLUNT

S-3

QUAN FIRST OWNER NUMBERS TRUCKS

S-4



Custom detailed by S.A. McCall
QUAN FIRST OWNER NUMBERS TRUCKS
14 C&O 5100-5113 AAR "A"
8 L&N 2225-2232 AAR "A"
20 L&N 2350-2369 AAR "A"
38 N&W(NKP) 2046-2083 AAR "A"
3 N&W(Wabash) 3322-3324 AAR "A"
10 SAL 1482-1491 AAR "A"
2 SOU(CNO&TP) 6074-6075 AAR "A"
2 WM 145-146 AAR "A"

S-5

QUAN FIRST OWNER NUMBERS TRUCKS
1 ISL. CRK. COAL 909 AAR "A"

S-6

QUAN FIRST OWNER NUMBERS TRUCKS
1 TENN. COPPER 107 AAR "A"
1 US PIPE & FDY 38 AAR "A"
2 WM 151-152 AAR "A"

T-6

QUAN FIRST OWNER NUMBERS TRUCKS
40 N&W Oct-49 AAR

ALCO SWITCHERS DIMENSIONAL DATA

MODEL S-1 S-2 S-3 S-4 S-5 S-6 T-6
SPEC E-1530 E-1540 E-1530A E-1540A,B DL-421 A DL-430 DL-440
ENGINE 660 HP 1000 HP 660 HP 1000 HP 800 HP 900 HP 950 HP
ENGINE TYPE 539-6CYL 539-6CYL 539-6CYL 539-6CYL 251-6 CYL 251-6 CYL 251B
C toC TRUCKS 22'-00" 22'-06" 22'-00" 22'-06" 22'-00" 22'-00" 22'-00"
C TRUCK to FRONT PILOT 9'-03" 9'-09" 9'-03" 9'-09" 9'-09" 9'-09" 9'-09"
C TRUCK to REAR PILOT 9'-03" 9'-03" 9'-03" 9'-03" 9'-03" 9'-03" 9'-03"
PILOT to PILOT 40'-06" 41'-06" 40'-06" 41'-06" 41'-00" 41'-00" 41'-00"
TOP ENGINE HOOD 12'-02 1/2" 12'-04 1/2" 12'-02 1/2" 12'-04 1/2" 12'-06 1/2" 12'-06 1/2" 12'-06 1/2"
TOP CAB HOOD 14'-04" 14'-06" 14'-04" 14'-06" 14'-08" 14'-08" 14'-08"
TOP WALKWAY 5'-00" 5'-02" 5'-00" 5'-02" 5'-06" 5'-06" 5'-06"
WIDTH WALKWAY 9'-07" 9'-07" 9'-07" 9'-07" 9'-07" 9'-07" 9'-07"
WIDTH CAB 10'-00" 10'-00" 10'-00" 10'-00" 9'-11" 9'-11" 10'-00 1/2"
WIDTH ENGINE HOOD 5'-07" 5'-07" 5'-07" 5'-07" 5'-07" 5'-07" 5'-07"
COUPLED LENGTH 44'-05 3/4" 45'-11 3/4" 44'-05 3/4" 45'-11 3/4" 45'-05 3/4 45'-05 3/4 46'-00 3/4"
TYPE TRUCKS BLUNT BLUNT AAR "A" AAR "A" AAR "A" AAR "A" AAR "A"
TRUCK WHB 8'-00" 8'-00" 8'-00" 8'-00" 8'-00" 8'-00" 8'-00"
WHEEL DIA. 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