MECHANICAL DETAILS

WAR DEPARTMENT DIESELS 825 AND 830

Drewry as built (Kees Mooy, Stibans group)

Engine: Gardener 6L3 (154hp@ 1200 RPM), later Gardener 6L3B (196hp@ 1200 RPM), flameproof exhaust

Gardner 6L3B (from Gardner manual)

Transmission (825) : Wilson-Sinclair fluid flywheel, Self Changing Gears type SE gearbox and RF11 reversing final drive*

SE gearbox (from Army parts list)

Transmission (830) : Wilson-Sinclair fluid flywheel, Self Changing Gears type SE4 gearbox and RF11 reversing final drive

RF11 final drive (from Army parts list)

Brakes: single acting Westinghouse straight air

Driving wheel diameter: 3'3"

Tractive effort: 10,600lb (first gear)

Max load on level: 548T

Wheelbase: 6'3"

Weight in working order (as built): 21Tons

*Originally had an earlier final drive that also formed the rear frame streacher

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