page_title: Bristol Lodekka
section_title: Chassis codes
hierarchical_section_title: Bristol Lodekka / Chassis codes
caption_attribution_description: English: 1959 Bristol Lodekka LD6B belonging to Cumbria Coaches. Photographed in Hawes, Yorkshire
context_page_description: The Bristol Lodekka was a half-cab low-height step-free double-decker bus built by Bristol Commercial Vehicles in England. It was the first production bus design to have no step up from the passenger entrance throughout the lower deck, although Gilford and Leyland Motors had developed low floor city buses in the 1930s, these did not enter production.
context_section_description: In accordance with Bristol Commercial Vehicles practice, chassis were designated by a two or three letter code, followed by the number of engine cylinders and engine manufacturer.
  LDX:    Low 'Decker, Experimental (the first two LD vehicles)
  LD:     Low 'Decker
  LDL:    Low 'Decker, Long (Essentially pre-production FL models - introduced when the maximum legal length of double deck buses was extended from 27 ft (8.2 m) to 30 ft (9.1 m). Braking was improved from the earlier vacuum assisted to compressed air assisted)
  LDS:    Low 'Decker, Short (Essentially pre-production FS models)
  FS:     Flat-floor, Short length
  FSF:    Flat-floor, Short length, Forward entrance
  FL:     Flat-floor, Long
  FLF:    Flat-floor, Long, Forward entrance
  Example engine classifications
  FS5G:   FS with Gardner 5LW engine
  FL6B:   FL with Bristol BVW engine (AVW type in Bristol LD6B)
  FLF6G:  FLF with Gardner 6LW or 6LX engine
  FLF6L:  FLF with Leyland O.600 or O.680 engine
caption: 1959 Bristol Lodekka LD6B built new as convertible open-top bus. Now in service with Cumbria Classic Coaches.[3]
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