RT 3183

larry flewers

Chatham, United Kingdom

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The AEC Regent III RT was a variant of the AEC Regent III. It was a double-decker bus produced jointly between AEC and London Transport. It was the standard red London bus during the 1950s
The prototype (London Transport RT 1) was built in 1938 with AEC’s 8.8-litre engine (a stopgap measure until the new 9.6-litre was available) and air-operated pre-selective gearbox. Finding a satisfactory British substitute for the German air compressor, bought from Bosch, was to cause problems for AEC, once war broke out. A prototype chassis was placed into service, disguised as an old vehicle. It carried a secondhand open-staircase body previously carried on Leyland Titan (fleet number TD 111), dating from 1931. Thus bodied, RT 1 entered service in July 1938 as ST 1140, even though it was nothing like a standard ST vehicle. It continued in service until December 1938.

While the chassis was on trial, a new body was constructed at London Transport’s Chiswick works. Its four-bay body resembled that of the conventional Roe body exhibited at the 1937 Commercial Motor Show, though the overall impression of modern design and the features included marked a big step forward. This body replaced the old one on RT 1 and the bus re-entered service in 1939.
London Transport ordered 338 (later cut to 150) chassis which were in production when the war broke out in September 1939. The last of the batch, RT 151, did not reach London Transport until January 1942. The only other RT-type chassis constructed before the end of the war was destined for Glasgow, originally intended to be an exhibit at the 1939 Commercial Motor show, but cancelled due to the outbreak of war. It differed from the pre-war London examples in having a body built by Weymann, though the cab area was very similar to the London vehicles
Production of the RT recommenced in late 1946, being delayed by London Transport’s wish to have the bodies jig-built, following its experience building Halifax bombers at Aldenham Tube Depot (later to become its main bus works). The new vehicles were built to a modified version of the pre-war London Transport design, but were similar in appearance to their predecessors. The main visual differences were:
1.The ultimate (narrow) destination blind was now located just above the driver with the via blind (wide) between the ultimate and the top deck windows.
2.The front route number remained above the top deck windows (known by some as the lighthouse box…as well as the more widely used roofbox) although the rear one was removed and the route number joined the ‘via’ points in the main display.
3.The bodywork was constructed by contractors rather than by London Transport.
4.The lower edge of the cab window forward of the driver’s door and the lower edge of the driver’s windscreen were horizontal, whereas on pre-war examples they curved downwards towards the corner of the cab. Also, the lower offside bodyside, behind the rear wheel, did not curve is, as that before the rear wheel.
5.The number of ventilation slats below the windscreen was reduced from 6 to 4.

In total, London Transport received 4,674 post-war RT-class buses between 1947 and 1954, with a small number of similar buses being sold to operators outside London (see below).

However, the London “RT” family of vehicles could be considered to have numbered 6,956 in total, consisting of 4,825 RTs; 1,631 RTLs and 500 RTWs. The latter two types had a variant of the Leyland Titan chassis and, in addition, the RTW’s had Leyland 8 feet wide steel framed bodies (as opposed to 7 feet 6 inches). The whole family were never all in operation at the same time.

The very last RT (RT624, now preserved by Ensignbus) operated on route 62 from Barking Garage on 7 April 1979.

Like the pre-war Glasgow vehicle, not all post-war production went to London Transport. Between 1946 and 1951, 101 chassis were delivered to ten other operators. Of these, only forty had RT-style bodies, thirty nine, by Park Royal, for St Helens Corporation and one, by Metro-Cammell, for Coventry Corporation.
This Bus is in the London Transport Country service livery
Taken at Tenterden Kent
Camera Canon eos 500D
Lens Tamron 18-270mm @ 20mm
iso 200
Raw
3 shots tonemapped in Photomatix pro

Artwork Comments

desktop tablet-landscape content-width tablet-portrait workstream-4-across phone-landscape phone-portrait
desktop tablet-landscape content-width tablet-portrait workstream-4-across phone-landscape phone-portrait

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