Unitrans RT742 is an ex-London Transport

London Transport Executive

The London Transport Executive was the organisation responsible for public transport in the Greater London area, UK, between 1948-1962. In common with all London transport authorities from 1933 to 2000, the public name and operational brand of the organisation was London Transport.-Creation:On 1...

 double decker bus

Double-decker bus

A double-decker bus is a bus that has two storeys or 'decks'. Global usage of this type of bus is more common in outer touring than in its intra-urban transportion role. Double-decker buses are also commonly found in certain parts of Europe, Asia, and former British colonies and protectorates...

 operated in regular service by Unitrans

Unitrans

Unitrans is the name for the transit system which operates in Davis, California. It takes its name from an abbreviation of the words "University Transport". Excepting several managerial and maintenance positions, Unitrans is managed and operated entirely by students of the University of...

 in Davis, California

Davis, California

Davis is a city in Yolo County, California, United States. It is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area...

. RT742 has been restored to its original appearance and is the only double decker bus in the Unitrans fleet to retain its original roofbox (the route number indicator located above the front upper-deck windows). It was also the second to last double decker bus in the Unitrans fleet to retain its original "pre-select" manual transmission

Manual transmission

A manual transmission, also known as a manual gearbox or standard transmission is a type of transmission used in motor vehicle applications...

 (the other being RTL1014), however it has since been refitted with an Allison transmission and a modern Cummins diesel engine. It has recently undergone a complete body re-build, including new sliding windows, replacing broken crank-style windows in the passenger compartment.

Technical specifications

Manufacturer (chassis

Chassis

A chassis consists of an internal framework that supports a man-made object. It is analogous to an animal's skeleton. An example of a chassis is the underpart of a motor vehicle, consisting of the frame with the wheels and machinery.- Vehicles :In the case of vehicles, the term chassis means the...

): Associated Equipment Company (AEC)

Manufacturer (coachwork

Coachwork

Coachwork is the body of a horse-drawn coach or carriage, a motor vehicle , a railroad car or railway carriage. Usually reserved for bodies built on a separate chassis, rather than being of unitary or monocoque construction...

): Saunders-Roe Ltd

Saunders-Roe

Saunders-Roe Limited was a British aero- and marine-engineering company based at Columbine Works East Cowes, Isle of Wight.-History:The name was adopted in 1929 after Alliot Verdon Roe and John Lord took a controlling interest in the boat-builders S.E. Saunders...

Model (chassis): AEC Regent III RT

AEC Regent III RT

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.-Prototype:...

Model (coachwork): Saunders roofbox 3RT3/3 (originally fitted with a Park Royal roofbox 3RT3 body until refurbishment in 1965)

Date built: July, 1948

Engine: Cummins

Cummins

Cummins Inc. is a Fortune 500 corporation that designs, manufactures, distributes and services engines and related technologies, including fuel systems, controls, air handling, filtration, emission control and electrical power generation systems...

 diesel

Diesel engine

A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

 with an Allison transmission. (originally equipped with an AEC 9.6 liter diesel and an air operated Wilson preselector gearbox

Preselector gearbox

A preselector or self-changing gearbox is a type of manual gearbox used on a variety of vehicles, most commonly in the 1930s...

.

Length: 27 feet, 6 inches

Width: 7 feet, 6 inches

Seating capacity: 56 (26 downstairs, 30 upstairs)

Original operator: London Transport

London Transport Executive

The London Transport Executive was the organisation responsible for public transport in the Greater London area, UK, between 1948-1962. In common with all London transport authorities from 1933 to 2000, the public name and operational brand of the organisation was London Transport.-Creation:On 1...

Original fleet number: RT742

Original license plate number: JXC 105

Date acquired by Unitrans: 1972

Current status: Unitrans Fleet - Active