The Atom Mark III is a rear wheel drive coupé car with a rear mounted engine, manufactured by Fairthorpe.
Its engine is a naturally aspirated petrol, 0.6 litre, overhead valve 2 cylinder with 2 valves per cylinder. This unit has an output of 35 bhp (35.5 PS/26.1 kW) of power at 5700 rpm, and maximum torque of 49 N·m (36.1 lb·ft/5 kgm) at 3750 rpm.
The engine drives the wheels via a 3 speed manual 'box.
Quoted weight at the kerb is 431 kg.
Full specs
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| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 2 seater fixed-head coupé | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2261 | 89 | |
| Voies AV | 1143 | 45 | |
| Voies AR | 1219 | 48 | |
| Longueur | 3658 | 144 | |
| Largeur | 1524 | 60 | |
| Hauteur | 1372 | 54 | |
| Garde au sol | 191 | 7.5 | |
| 1.62 | |||
| Poids avec pleins | 431 kg | 950 | |
| Répartition poids AV | |||
| Réservoir à essence | 20.5 litres | 4.5 [5.4] UK [US] gal. | |
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | |||
| maître-couple | |||
| SCx | |||
| naturally aspirated petrol | |||
| Constructeur du moteur | BSA | ||
| Type moteur | |||
| Cylinders | Straight 2 | ||
| Cylindrée | 0.6 litre 646 cc (39.421 cu in) |
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| Alésage × Course | 70 × 84 mm
2.76 × 3.31 in |
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| Rapport alésage / course | 0.83 | ||
| Distribution | overhead valve (OHV)
2 Soupapes par cylindre 4 Total vannes |
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| Puissance maximale (Net) |
35.5 PS (35 bhp) (26.1 kW) à 5700 tr/mn |
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| Couple maximale (Net) |
49 Nm (36.1 ft·lb) (5 kgm) à 3750 tr/mn |
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| Specific output (Net) |
40.4 kW/litre 54.9 ps/litre 54.2 bhp/litre 0.89 bhp/cu in |
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(Net) |
75.85 Nm/litre
0.92 ft·lb/cu3 |
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| Construction | |||
| Lubrification | |||
| Taux de compression | 6.5:1 | ||
| Carburant | 1 Am carb | ||
| bmep (brake mean effective pressure) | 953.2 kPa (138.2 psi) | ||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | |||
| Refroidissement | Air | ||
| Cylindrée Unitaire | 323 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalyseur | N | ||
| Performances | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | |||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Vitesse | |||
| Power-to-weight ratio | Higher is better 82.34 PS/tonne (1000 kg) 0.08 PS/kg 60.56 kW/tonne (1000 kg) 0.06 kW/kg 81.21 bhp/tonne (1000 kg) 0.08 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 16.51 kg/kW 27.58 lb/bhp |
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| Consommation | |||
| Consommation | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Emissions de CO₂ | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| Châssis | |||
| Emplacement de moteur | rear | ||
| Engine layout | unknown | ||
| Traction | rear wheel drive | ||
| Répartition du couple | N/A | ||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspension AV | I.CS. | ||
| Suspension AR | I.CS. | ||
| Roues AV | |||
| Roues AR | |||
| Pneumatiques AV | |||
| Pneumatiques AR | |||
| Freins AV/AR | Dr/Dr | ||
| Diamètre des freins AV | |||
| Diamètre des freins AR | |||
| Braked area | |||
| Transmission | 3 speed manual | ||
| Rapport de démultiplication supérieure | 1 | ||
| Rapport de pont | 4.90 | ||
| Généralités | |||
| Carfolio.com ID | 46992 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 6.1 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1955 Fairthorpe Atom Mark III added before December 1995. Last modified 2013-02-28. |
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