Flxible FD Models

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Flxible FD Models
Years of manufacture 1961 to 1968
Length 31, 33, 35 & 40 feet
Width 96 inches
Power/Fuel Diesel

The Flxible FD Models were 31 to 40 foot transit buses built from 1961 to 1968 in the United States. The styling of these buses were similar to the GM New Look.

Model Breakdown

  • F = manufactured by Flxible (this dates back to when Flxible purchased the Twin Coach's transit bus line).
  • D = diesel engine.
  • 47 = Detroit Diesel 4-71, 6V = Detroit Diesel 6V-71 engine, 6V5 = 6V-71 engine and built in Evergreen, AL, 6VT = 6V-71 engine with a T-drive transmission, or V8C = Cummins 165-285 engine.
  • -31 = 31-foot, -33 = 33-foot, -35 = 35-foot, or -40 = 40-foot.
  • 1 = transversely mounted engine.
  • -1 = transit bus or -7 = suburban bus.
  • -UL = under-floor luggage bays
  • -AC = air conditioning

Specifications

Engine:

Operators

United States Flag of the United States.png

Demonstrator and engineering units

Below is a list of known demonstrator and engineering buses.

Fleet
number
Thumbnail Year Serial Engine Transmission Notes
51351 Detroit Diesel 6V71N
  • FD6V401-7-AC model
  • Sold to an unknown Philadelphia operator in 1965.
51942 Detroit Diesel 6V71N
  • FD6V401-7 model
  • Sold to Red & Tan Lines 231 in 1964.