Type D Maximum Capacity

Blue Bird All American FE dimensions

Blue Bird · Front engine · Current platform · OEM verified

A flat-front Type D with five wheelbases, up to 90-passenger capacity and a low-profile front-engine layout. It offers more body efficiency than a conventional bus, but the engine cover affects the front conversion plan.

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Dimensions

Overall length27–40 ft
Buildable interior length18–30 ft
Buildable floor area120–215 sq ft
Standing volume720–1280 cu ft
Interior width90.75 in
Interior height77 in
Exterior width96 in
Overall height122–128 in
Wheelbases141", 169", 190", 211", 232"
GVWRup to 36200 lb

Drivetrain & chassis

EngineCummins B6.7 200–300 hp, OEM calibration dependent
TransmissionAllison 2500 PTS
TransmissionAllison 3000 PTS
Tires11R22.5 Load Range G
BrakesHydraulic disc, air drum or air disc depending on configuration
SuspensionLeaf spring; air suspension available
Fuel60–100 gallons
Axle ratioBroad range available; verify axle tag/build sheet

Cummins B6.7: The same engine family appears across several modern Type C and Type D buses. Confirm emissions year, rating plate, CPL and installed horsepower on the vehicle.

Configurations

141″ wheelbase about 27–29 ft
190″ wheelbase about 32–35 ft
232″ wheelbase about 39–40 ft

Strengths and cautions

Works in its favour

  • Flat-front body uses overall length efficiently
  • Up to 90-passenger body capacity
  • Current Cummins and Allison component support
  • Wide entrance door and 77-inch headroom

Check before you buy

  • Front engine cover consumes or shapes usable floor area
  • Engine heat and sound management matter in a conversion
  • Wheelbase alone does not identify body length
  • Air-brake and hydraulic-brake versions require different ownership planning

Will a bed fit crosswise?

Interior width is about 90.75 inches before framing and panelling.

Twin crosswise (75″) Fits, about 15.8″ spare
Full / double crosswise (75″) Fits, about 15.8″ spare
Queen crosswise (80″) Fits, about 10.8″ spare
King crosswise (80″) Fits, about 10.8″ spare

Similar platforms

Figures here come from manufacturer documentation, but bodies were ordered to spec, so two vehicles of the same model year can still differ. Measure before you buy materials.
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