On a level 665 gross tons.

" 20 ft. grade 305 " "

" 40 " 190 " "

" 60 " 135 " "

" 80 " 100 " "

" 100 " 75 " "

[Ill.u.s.tration: Locomotive.]

DIVISION I.

ROAD LOCOMOTIVES FOR Pa.s.sENGER OR FREIGHT SERVICE.

CLa.s.s 20-1/2 C

General Design Ill.u.s.trated by Prints on Pages 52 and 56.

CYLINDERS.

Diameter of cylinders 13 inches.

Length of stroke 22 or 24 inches.

DRIVING-WHEELS.

Diameter of drivers 56 to 66 inches.

TRUCK.

FOUR-WHEELED CENTRE-BEARING TRUCK, WITH SWING BOLSTER.

Diameter of wheels 24 to 30 inches.

WHEEL-BASE.

Total wheel-base 20 ft. 1-3/4 inches.

Rigid " (distance between driving-wheel-centres) 6 ft. 6 inches.

TENDER.

ON TWO FOUR-WHEELED TRUCKS.

Capacity of tank 1400 gallons.

WEIGHT OF ENGINE IN WORKING ORDER.

On drivers 30,000 pounds.

On truck 20,000 "

------ Total weight of engine, about 50,000 "

LOAD.

IN ADDITION TO ENGINE AND TENDER.

On a level 710 gross tons.

" 20 ft. grade 325 " "

" 40 " 200 " "

" 60 " 140 " "

" 80 " 105 " "

" 100 " 80 " "

DIVISION I.

ROAD LOCOMOTIVES FOR Pa.s.sENGER OR FREIGHT SERVICE.

CLa.s.s 22-1/2 C.

General Design Ill.u.s.trated by Prints on Pages 52 and 56.

CYLINDERS.

Diameter of cylinders 14 inches.

Length of stroke 22 or 24 inches.

DRIVING-WHEELS.

Diameter of drivers 56 to 66 inches.

TRUCK.

FOUR-WHEELED CENTRE-BEARING TRUCK, WITH SWING BOLSTER.