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Fairthorpe Atom

(1955 model)

Brief specs of 1955 Fairthorpe Atom

2-door 2-seater coupé, straight (inline)ingle cylinder engine, 248 cm3 / 15.1 cu in / 15.1 cu in, 9.0 kW / 12.1 hp / 12.1 hp @ 5300 rpm / 5300 rpm / 5300 rpm, 20.0 N·m / 14.8 lb·ft / 14.8 lb·ft @ 3700 rpm / 3700 rpm / 3700 rpm, manual 3-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)FairthorpeIssued from1955
ModelAtomIssued until
SerieAtomNumber made
Model familyBody construction
Model codeBody designation
ManufacturerFairthorpeCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typecoupéNumber of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length3660 mm / 144.1 in / 144.1 inTotal (curb) weight426 kg / 939 lb / 939 lb
Width1530 mm / 60.2 in / 60.2 inDry weight
Height1380 mm / 54.3 in / 54.3 inLoad capacity
Wheelbase2270 mm / 89.4 in / 89.4 inGross (max.) weight
Track frontTowing weight
Track rearWeight distribution (front)
Ground clearance200 mm / 7.9 in / 7.9 inFuel capacity18 l / 4.0 UK gal / 4.8 US gal
Length/wheelbase ratio1.61  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.79 m2 / 19.3 sq ft / 19.3 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders
Engine Typestraight (inline)ingle cylinder (Single cylinder)Total number of valves
Engine ManufacturerValves per cylinder
Engine constructionBore63.0 mm / 2.48 in / 2.48 in
FuelStroke80.0 mm / 3.15 in / 3.15 in
Fuel detailsBore/Stroke ratio0.79
Fuel supplyCarburettorEngine displacement248 cm3 / 15.1 cu in / 15.1 cu in
Engine Main bearingsUnitary capacity249.38 cm3/cylinder / 15.218 cu in/cylinder / 15.218 cu in/cylinder
Cam DesignCompression ratio
SumpMax. output power9.0 kW / 12.1 hp / 12.1 hp at 5300 rpm / 5300 rpm / 5300 rpm
AspirationnaturalMax. torque20.0 N·m / 14.8 lb·ft / 14.8 lb·ft at 3700 rpm / 3700 rpm / 3700 rpm
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)3.6 kW / 4.8 hp / 4.8 hp (est.)
CoolantairSpecific output36.3 kW/l / 0.797 bhp/cu in / 0.797 bhp/cu in
Catalytic converterSpecific torque80.6 N·m/l / 0.71 lb·ft/cu in / 0.71 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio28.6 kW/ton / 21.7 bhp/ton / 21.7 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)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationrearEngine alignment
SteeringSteering details
Turns lock-to-lockTurning circle
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontdrumBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Fairthorpe Atom

Infobox

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