RML - The final form of the Routemaster
(built 1961 and 1965-8)

524 RML (30' standard model)

Photo: Mark Kehoe

The RML is the high capacity version of the Routemaster designed for the major central London routes. The extra capacity was obtained by adding a 2ft 4in bay in the centre of the body and is instantly recognisable due to the square windows that rather look like an afterthought (which, of course, they were!).

RMLs 880-903 were the experimental batch which were subsequently followed by the main batch of 500 vehicles (2261 to 2760). The last one of all, RML2760, is being maintained in original condition at Upton Park garage and is still made up of its original body and sub-frames.

The RML was also the ultimate in terms of the bus weight per passenger which, at a mere 240 lbs (compared to the standard RM's 257 lbs), is lighter than most modern buses and endowed it with excellent fuel consumption.

Height14' 4.5"
Seating72 (32 Downstairs, 40 Upstairs)
EngineAEC AV590 9.6 litre diesel rated at 115 bhp at 1800 rpm
GearboxAEC direct selection/automatic 4 speed with electrical control and air operation
BrakesContinuous flow power hydraulic
SteeringPower assisted, sweeping a 69' circle
Weight7 tons 14 cwt (unladen)
12 tons 6 cwt (laden)
BodyAll aluminium stressed skin construction
ChassisTwo separate steel sub-frames:
Front 'A' frame carrying engine, steering and front suspension
Rear 'B' frame carrying rear axle and rear suspension

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