Technical Specifications
- The name "ATOM" registered with the Society of Motor Manufacturers and Traders
- Chassis
- Rectangular tube, 2.0 x 1.25 inches 13 guage and 1.25 x 1.25 inches of 18 guage with aluminium overclad panels.
- Fully patented box frame structure.
- Self tapping screws and nyloc nuts used for the first time on Astons.
- All the body panels are original.
- Suspension
- I.F.S. with short trailing links and coil springs. Gordon Armstrong patented.
- Divided track rods providing accurate steering geometry.
- Semi-elliptical springs to rear.
- Gordon Armstrong hydraulic level shock-absorbers to front and rear.
- 5.50 x 17 inch tyres.
- Transmission
- Electromagnetic 4 speed "COTAL" semi-automatic gearbox.
- Salisbury hypoid bevel back axle.
- Top Ratio 4.55:1, Third 6.68:1, Second 10:1, First 15:1.
- Braking
- Lockheed hydraulic on 12 inch drums.
- Engine
- (From 1944) 1970cc Claude Hill Pushrod 4 cylinder 82.55mm bore x 92mm stroke.
- Twin 1.50in S.U. Carburettors with thermo-choke.
- Inlet valves centred above pistons, exhaust valves angled in recesses to manifold. Direct drive water pump.
- Wet sump 1.50 gals. capacity.
- Coil ignition.
- (1940-44) 1950cc Single O.H.C, 78mm bore x 102 stroke, Zenith Carburettors
- (From 1944) 1970cc Claude Hill Pushrod 4 cylinder 82.55mm bore x 92mm stroke.
Additional Data
| Wheelbase: 8ft 6ins Track: 4ft 2ins Steering: 2.25 turns lock to lock | Weight: 24cwt (2,688 lbs) Petrol Tank: 17 gallons |