Flxible FD Models

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:

• Cummins 165-285
• Detroit Diesel 4-71
• Detroit Diesel 6V71

Operators

United States

• Centre Area Transportation Authority - State College, PA
• Chicago Transit Authority - Chicago, IL
• Metropolitan Transportation Authority - NY
• Miami Valley Regional Transit Authority - Dayton, OH
• Ohio State University Campus Area Bus Service - OH
• Rochester Transit Corporation - Rochester, NY

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.