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Fairthorpe Atom Mark I

(1955 model)





units: metric UK US

Basic (general) data

Marque (make)FairthorpeIssued from1955
ModelAtom Mark IIssued until
SerieAtomNumber made
Model familyBody construction
Model codeBody designation
ManufacturerFairthorpeCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2
Bodywork designerCargo capacity (volume)
  Max. cargo capacity (volume)

Dimensions & Weight

Length3658 mm / 144.0 in / 144.0 inGround clearance191 mm / 7.5 in / 7.5 in
Width1524 mm / 60.0 in / 60.0 inLength/wheelbase ratio1.62
Height1372 mm / 54.0 in / 54.0 inTotal (curb) weight426 kg / 939 lb / 939 lb
Wheelbase2261 mm / 89.0 in / 89.0 inDry weight
Track front1143 mm / 45.0 in / 45.0 inWeight distribution (front)
Track rear1219 mm / 48.0 in / 48.0 inFuel capacity18 l / 4.0 UK gal / 4.8 US gal

Aerodynamics

Drag coefficientFrontal Area
Cx  

Engine

Engine CodeTotal number of cylinders1
Engine Typesingle cylinder Total number of valves2
Engine ManufacturerValves per cylinder2
Engine constructionBore63.0 mm / 2.48 in / 2.48 in
Fuelpetrol (gasoline)Stroke80.0 mm / 3.15 in / 3.15 in
Fuel supplyBore/Stroke ratio0.79
Engine Main bearingsEngine displacement248 cm3 / 15.1 cu in / 15.1 cu in
Cam DesignOHV (overhead valve, I-head)Unitary capacity248.00 cm3/cylinder / 15.134 cu in/cylinder / 15.134 cu in/cylinder
SumpCompression ratio6.5 : 1
AspirationnaturalMax. output power8.9 kW / 12.1 hp / 12.1 hp at 5300 rpm / 5300 rpm / 5300 rpm
Compressor typeN/AMax. torque19.0 Nm / 14.0 lbft / 14.0 lbft at 3700 rpm / 3700 rpm / 3700 rpm
IntercoolernoneMaximum rpm
CoolantairMax. net output8.8 kW / 12.0 bhp / 12.0 bhp
Catalytic converternoSpecific output48.4 kW/l / 1.078 bhp/cu in / 1.078 bhp/cu in
  Specific torque76.61 Nm/l / 0.670 lbft/cu in / 0.670 lbft/cu in

Transmission

Transmission typemanualNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1.00
  Final gear (drive) ratio7.98

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (96 km/h)Power-to-weight ratio28.17 kW/ton / 38.30 bhp/ton / 38.30 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
0-Quarter-mile time Fuel consumption, Euro
0-Kilometer time CO2 emissions

Chassis

Engine locationrearEngine alignment
Steering  
Turns lock-to-lockTurning circle
Suspension frontI.CS.Suspension rearI.CS.
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontdrumBrakes reardrum
Brake diameter frontBrake diameter rear
Braked area  

Technical specifications and performance data of Fairthorpe Atom Mark I

 
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