 Jo Bonnier's Cooper T81, in the colours of his Anglo-Suisse Racing team | |||||||||
| Category | Formula One | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Constructor | Cooper Car Company | ||||||||
| Designer(s) | Derrick White | ||||||||
| Predecessor | Cooper T77/Cooper T80 | ||||||||
| Successor | Cooper T86 | ||||||||
| Technical specifications | |||||||||
| Chassis | Aluminium monocoque | ||||||||
| Suspension (front) | lower wishbones, upper rocker arms, inboard coil springs over dampers | ||||||||
| Suspension (rear) | top links, reversed lower wishbones, twin radius arms, coil springs over dampers | ||||||||
| Axle track | F: 1,495 mm (58.9 in) R: 1,455 mm (57.3 in) | ||||||||
| Wheelbase | 2,490 mm (98.0 in) | ||||||||
| Engine | Maserati 2989cc V12 naturally aspirated Mid-engined, longitudinally mounted | ||||||||
| Transmission | T81: ZF 5DS25 T81B: Hewland DG300 5-speed manual gearbox, | ||||||||
| Fuel | BP | ||||||||
| Tyres | (Works team) Dunlop (1966), Firestone (1966/7) | ||||||||
| Competition history | |||||||||
| Notable entrants | Cooper Car Company, R.R.C. Walker Racing Team | ||||||||
| Notable drivers |  Chris Amon, Jo Bonnier, Richie Ginther, Jochen Rindt, Pedro Rodríguez, Jo Siffert, John Surtees,  Jacky Ickx | ||||||||
| Debut | 1966 Syracuse Grand Prix | ||||||||
| |||||||||
| Constructors' Championships | 0 | ||||||||
| Drivers' Championships | 0 | ||||||||
The Cooper T81 is a Formula One car produced by the Cooper Car Company for the 1966 Formula One season. It represented something of a comeback for Cooper's fortunes, winning two races and enabling Cooper to finish third in the Constructors' Championship in 1966 and 1967.[1][2]