(1955 model)
| Marque (make) | Fairthorpe | Issued from | 1955 |
|---|---|---|---|
| Model | Atom Mark III | Issued until | |
| Serie | Atom | Number made | |
| Model family | Body construction | ||
| Model code | Body designation | ||
| Manufacturer | Fairthorpe | Country | UK |
| Base platform | Number of doors | 2 | |
|---|---|---|---|
| Bodywork type | fixed-head coupé | Number of seats | 2 |
| Bodywork designer | Cargo capacity (volume) | ||
| Max. cargo capacity (volume) |
| Length | 3658 mm / 144.0 in / 144.0 in | Ground clearance | 191 mm / 7.5 in / 7.5 in |
|---|---|---|---|
| Width | 1524 mm / 60.0 in / 60.0 in | Length/wheelbase ratio | 1.62 |
| Height | 1372 mm / 54.0 in / 54.0 in | Total (curb) weight | 431 kg / 950 lb / 950 lb |
| Wheelbase | 2261 mm / 89.0 in / 89.0 in | Dry weight | |
| Track front | 1143 mm / 45.0 in / 45.0 in | Weight distribution (front) | |
| Track rear | 1219 mm / 48.0 in / 48.0 in | Fuel capacity | 20 l / 4.5 UK gal / 5.4 US gal |
| Drag coefficient | Frontal Area | ||
|---|---|---|---|
| Cx |
| Engine Code | Total number of cylinders | 2 | |
|---|---|---|---|
| Engine Type | straight (inline) | Total number of valves | 4 |
| Engine Manufacturer | BSA | Valves per cylinder | 2 |
| Engine construction | Bore | 70.0 mm / 2.76 in / 2.76 in | |
| Fuel | petrol (gasoline) | Stroke | 84.0 mm / 3.31 in / 3.31 in |
| Fuel supply | Bore/Stroke ratio | 0.83 | |
| Engine Main bearings | Engine displacement | 646 cm3 / 39.4 cu in / 39.4 cu in | |
| Cam Design | OHV (overhead valve, I-head) | Unitary capacity | 323.00 cm3/cylinder / 19.711 cu in/cylinder / 19.711 cu in/cylinder |
| Sump | Compression ratio | 6.5 : 1 | |
| Aspiration | natural | Max. output power | 26.1 kW / 35.5 hp / 35.5 hp at 5700 rpm / 5700 rpm / 5700 rpm |
| Compressor type | N/A | Max. torque | 49.0 Nm / 36.1 lbft / 36.1 lbft at 3750 rpm / 3750 rpm / 3750 rpm |
| Intercooler | none | Maximum rpm | |
| Coolant | air | Max. net output | 25.7 kW / 34.9 bhp / 34.9 bhp |
| Catalytic converter | no | Specific output | 54.2 kW/l / 1.208 bhp/cu in / 1.208 bhp/cu in |
| Specific torque | 75.85 Nm/l / 0.663 lbft/cu in / 0.663 lbft/cu in |
| Transmission type | manual | Number of gears | 3 |
|---|---|---|---|
| Wheel drive | rear wheel drive | Top gear (drive) ratio | 1.00 |
| Final gear (drive) ratio | 4.90 |
| Acceleration 0-50 mph (80 km/h) | Top (maximal) speed | ||
|---|---|---|---|
| Acceleration 0-60 mph (96 km/h) | Power-to-weight ratio | 81.21 kW/ton / 110.41 bhp/ton / 110.41 bhp/ton | |
| Acceleration 0-100 km/h | Fuel consumption, City (urban) | ||
| Acceleration 0-100 mph (160 km/h) | Fuel consumption, Road (extra-urban) | ||
| Acceleration 80-120 km/h (50-70 mph) in top | Fuel consumption, Mixed (combined) | ||
| 0-Quarter-mile time | Fuel consumption, Euro | ||
| 0-Kilometer time | CO2 emissions |
| Engine location | rear | Engine alignment | |
|---|---|---|---|
| Steering | |||
| Turns lock-to-lock | Turning circle | ||
| Suspension front | I.CS. | Suspension rear | I.CS. |
| Wheels front | Wheels rear | ||
| Tyres front | Tyres rear | ||
| Brakes front | drum | Brakes rear | drum |
| Brake diameter front | Brake diameter rear | ||
| Braked area |
Technical specifications and performance data of Fairthorpe Atom Mark III
