The March 73A was an open-wheel formula racing car, designed, developed, and built by British manufacturer and constructor, March Engineering, for Formula 5000 racing, between 1973 and 1974.[1][2] It competed in both the European and SCCA U.S. F5000 championships.[3] It also competed in one non-championship Formula One World Championship Grand Prix; the 1973 Race of Champions.[4] It was later converted into a closed-wheel Can-Am-style prototype chassis, where it competed in the 1984 championship.[5]
| Category | Formula 5000 |
|---|---|
| Constructor | March |
| Predecessor | March 72A |
| Technical specifications | |
| Chassis | Aluminium monocoque with load-bearing engine-transmission assembly, fiberglass and aluminum body |
| Suspension (front) | Independent, wishbones and inclined coil spring/shock absorber units |
| Suspension (rear) | Independent, single top link, twin tower links and coil spring/shock absorber units |
| Engine | Mid-engine, longitudinally mounted, 5.0 L (305.1 cu in), Chevrolet, 90° V8, NA |
| Transmission | Hewland 5-speed manual |
| Weight | 1,500 lb (680 kg) |
| Competition history | |
| Notable drivers |  Skip Barber John Gunn Bill Tempero Clive Baker |
| Debut | 1973 |
References edit
- ^ Brown, Allen. "March 73A car-by-car histories". OldRacingCars.com.
- ^ "March". www.f5000registry.com.
- ^ "March « F5000 « OldRacingCars.com". www.oldracingcars.com.
- ^ "March 73/A Formula 5000". racecarsdirect.com.
- ^ "March 73A". Retrieved 14 January 2023.