The Shadow DN3 was a Formula 1 racing car, which was developed in 1974 at Advance Vehicle Systems and in the Formula 1 1974 season and in the first two races of the Formula 1 1975 season was used.
Development history and technology
The Shadow D3 based largely on the Shadow DN1 from 1973, Tony Southgate revised the car, however, in significant areas. Also the DN3 had a slim thin nose, side radiator and outboard bearings front and rear. The DN3 but had a longer wheelbase, a wider track and improved aerodynamics. For the 1975 season was a chassis with new parts that were actually produced for the successor model, the DN5 provided. However, the use of this chassis was limited to the first two races of the season. As engines were V8 engines from Cosworth use.
Shadow - owner Don Nichols committed during the winter break, two new drivers. The American Peter Revson came from McLaren Racing, replacing George Follmer. Revson had won in 1973 the Grand Prix of Great Britain and Canada and was considered a top driver. The second driver's seat was the Frenchman Jean -Pierre Jarier, which debuted in 1971 in the Formula 1 and 1973 had an engagement with March Engineering. The first race was the DN3 start the season in Argentina. Revson qualified for the fourth place, 0.5 seconds behind Ronnie Peterson Lotus 72, who scored the fastest lap time. Since only one chassis was completed on time, Jarier had to take place in DN1. The Frenchman managed in training rank 16 and was about two seconds slower than Peter Revson. The race ended for both Shadows already in the first round. Revson collided at the first corner with Clay Regazzoni and Mike Hailwood. Jarier could the rotating Revson not escape and drove the Americans in the rear car, which turned out both factory cars.
Also in the second race of the season, the Brazilian Grand Prix, Revson failed prematurely. After only ten laps the car had to be parked because of an overheated engine. Jarier also had this race with the DN1 contest and had 21 laps after a brake failure.
Like most teams also took Shadow the week before the Grand Prix of South Africa for extensive test drives at the Kyalami Grand Prix Circuit. A tragic in retrospect decision since Peter Revson it was killed. In a quick passage, the front suspension broke; the DN3 wrinkle front one and rolled over the side. Revson died from his severe head injuries at the accident site. The leadership team then pulled the message for the race back.
Meanwhile in the shadow workshop two more chassis had been made ready for the race, so two were reported DN3 for the subsequent Spanish Grand Prix. The vacant space of Revson took over Brian Redman who finished the race in seventh. Redman also denied the Monaco Grand Prix, where Jarier with his first career podium - he finished the race in third place - scored the first points for the DN3. At the Grand Prix of Sweden Bertil Roos took over the free cockpit. The Swede has gained some much sponsor money his first and only Grand Prix start, remained in the race but after two rounds are with a gearbox failure.
After the race in Anderstorp, the team led by Shadow decided to award the second cockpit fix. The choice fell on the talented Welshman Tom Pryce. By the end of the season Pryce and Jarier formed the Shadow team. As the DN1 was also the DN3 a defective prone racing car. Although the tub was far stronger than the DN1, attended vibrations coming from the engine for long-term handling problems. At the end of the season the points yield was poor; only seven points were to book. That was the disappointing eighth overall place in the Constructors' title.
The last message of a DN3 there was the Grand Prix of Great Britain in 1976 by the team PR Reilly. Driver Mike Wilds missed the qualification significantly.