ALCO HOOD UNITS-ALL ROADS

SWITCHER-300-7 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
2 LEHIGH VALLEY 102,102 BLATZ
4 USN(MARE iSLAND) 3,4,5,11 BLATZ
1 USN(NORFOLK) 3 BLATZ

ALCO HI HOOD UNITS

MODEL 0900-1 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
1 NEW HAVEN 900 SPECIAL

HH600-78 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
3 AT & SF 2300,2301 & 2302 BLUNT
3 BELT RY OF CHICAGO 300,302 & 303 BLUNT
11 BOSTON & ALBANY 674-684 BLUNT
2 BOSTON & MAINE 1101 & 1102 BLUNT
4 CENTRAL OF NEW JERSEY 1020-1023 BLUNT
1 CHICAGO & EASTERN ILLINOIS 102 BLUNT
1 CHICAGO & ILLINOIS WESTERN 1 BLUNT
9 DELAWARE LACKAWANNA & WESTERN 401-408 BLUNT
1 ERIE JOLIET & ELGIN 209 BLUNT
1 HOBOKEN MFGRS 601 BLUNT
8 ILLINOIS CENTRAL 9006-9013 BLUNT
1 LEHIGH VALLEY 105 BLUNT
1 MASSENA TERMINAL 7 BLUNT
2 MICHIGAN LIMESTONE & CHEMICAL 101,102 BLUNT
10 NEW HAVEN 0911-0920 BLUNT
7 PATAPSCO & BACK RIVERS 54-60 BLUNT
1 PEORIA & PEKIN UNION 100 BLUNT
4 PORTLAND TERMINAL (MAINE) 1001-1004 BLUNT
6 SOUTH BUFFALO 50,53,56 & 59 BLUNT
1 UNIVERSAL ATLAS CEMENT (NY) 4 BLUNT

HH660-43 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
1 ALCO PLANT SWITCHER 4 BLUNT
1 BOSTON & MAINE 1162 BLUNT
1 BUFFALO CREEK 43 BLUNT
3 DELAWARE LACKAWANNA & WESTERN 409-411 BLUNT
4 ERIE 302-305 BLUNT
3 ERIE JOLIET & ELGIN 210-212 BLUNT
1 GREEN BAY & WESTERN 101 BLUNT
1 INLAND STEEL 50 BLUNT
1 LEHIGH VALLEY 116 BLUNT
1 LOUISVILLE & NASHVILLE 10 BLUNT
2 MAINE EAST COAST 951-952 BLUNT
4 MILWAUKEE 1600-1603 BLUNT
1 MSTL D939 BLUNT
10 NEW HAVEN 0921-0930 BLUNT
3 NICKEL PLATE 125-127 BLUNT
3 SOUTHERN PACIFIC 1001-1003 BLUNT
1 TENNESSEE CENTRAL 50 BLUNT
2 WABASH 100,150 BLUNT

HH900-21 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
8 BIRMINGHAN SOUTHERN 81-88 BLUNT
1 ERIE JOLIET & ELGIN 402 BLUNT
1 KANSAS CITY TERMINAL 50 BLUNT
3 MINNESOTA TRANSFER 90-92 BLUNT
1 PHILADELPHIA BETHELEM & NE 207 BLUNT
2 READING 40,41 BLUNT
1 ROCK ISLAND 101 BLUNT
2 WARRIOR RIVER TERMINAL 50,51 BLUNT
2 YOUNGSTOWN & NORTHERN 211,212 BLUNT

HH1000-34 BUILT

QUAN RR ORIGINAL OWNER ROAD NUMBERS TRUCKS
12 AT & SF 2310-2321 BLUNT
1 ATLANTIC COAST LINE 600 BLUNT
1 BIRMINGHAN SOUTHERN 89 BLUNT
3 MANUFACTURERS 201-203 BLUNT
1 MSTL D539 BLUNT
2 MILWAUKEE 16,701,671 BLUNT
4 MICHIGAN LIMESTONE & CHEMICAL 103-106 BLUNT
1 MISSOURI PACIFIC 9102 BLUNT
2 NEWBURGH & SOUTH SHORE 1,2 BLUNT
7 OLIVER IRON MINING 900-906 BLUNT

ALCO HI-HOODS
MODEL CNJ 1000 900 HH 600 HH 660 HH900 HH1000
SPEC none none none none none none
ENGINE 300 HP 600 HP 600 HP 660 HP 900 HP 1000 HP
ENGINE TYPE I-R 300 531 6 CYL 531 6 CYL 539 6 CYL 531 turbo 539 turbo
C toC TRUCKS 17'-00" 21'-03" 21'-03" 21'-03" 21'-03" 21'-03"
C TRUCK to FRONT PILOT 7'-09" 10'-09" 10'-09" 10'-09" 10'-09" 10'-09"
C TRUCK to REAR PILOT 7'-09" 11'-03" 11'-03" 11'-03" 11'-03" 11'-03"
PILOT to PILOT 28'-02" 42'-03" 42'-03" 42'-03" 42'-03" 42'-03"
TOP ENGINE HOOD 13'-06" 14'-03" 14'-03" 14'-03" 14'-03" 14'-03"
TOP CAB HOOD 13'-06" 14'-03" 14'-03" 14'-03" 14'-03" 14'-03"
TOP WALKWAY none 5'-00" 5'-00" 5'-00" 5'-00" 5'-00"
WIDTH WALKWAY none 9'-07" 9'-07" 9'-07" 9'-07" 9'-07"
WIDTH CAB 10'-00" 9'-10" 9'-10" 9'-10" 9'-10" 9'-10"
WIDTH ENGINE HOOD 10'-00" 5'-09" 5'-09" 5'-09" 5'-09" 5'-09"
COUPLED LENGTH 32'-08" 45'-02 3/4 45'-02 3/4 45'-02 3/4 45'-02 3/4 45'-02 3/4
TYPE TRUCKS special BLUNT BLUNT BLUNT BLUNT BLUNT
TRUCK WHB 7'-02" 8'-00" 8'-00" 8'-00" 8'-00" 8'-00"
WHEEL DIA. 36" 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