Stewart SF3
 Rubens Barrichello in the Stewart SF3, 1999 at the Canadian Grand Prix |
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| Constructor: |
 Stewart
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| Designer: |
Alan Jenkins , Gary Anderson (technical director) Andy Le Flemming (designer) Eghbal Hamidy , Darren Davis (aerodynamics) |
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| Predecessor: | Stewart SF2 | ||||||||
| Technical specifications | |||||||||
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| Chassis: | Pressed composite monocoque made of CFRP | ||||||||
| Engine: | Ford - Cosworth CR-1 2,998 cm³, 72 ° V10 naturally aspirated engine | ||||||||
| Front suspension: | Double wishbone axle with internal springs and shock absorbers , operated via push rods | ||||||||
| Rear suspension: | Double wishbone axle with internal springs and shock absorbers , operated via push rods | ||||||||
| Wheelbase: | 2,990 mm | ||||||||
| Weight: | 600 kg | ||||||||
| Tires: | Bridgestone | ||||||||
| Petrol: | Texaco | ||||||||
| statistics | |||||||||
| Driver: | 16. Rubens Barrichello 17. Johnny Herbert
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| First start: | 1999 Australian Grand Prix | ||||||||
| Last start: | 1999 Japanese Grand Prix | ||||||||
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| World Cup points: | 36 | ||||||||
| Podiums: | 4th | ||||||||
| Leadership laps: | 84 over 385.741 km | ||||||||
The Stewart SF3 , which in the season 1999 was used, was the third and final Formula 1 - racing cars of Stewart Grand Prix .
Technology and development
The technical director for development was Gary Anderson, who replaced Alan Jenkins. He was responsible for Andy Le Flemming for the construction and Eghbal Hamidy and his successor Darren Davis for the aerodynamic shape of the car. The car had been redeveloped under the former technical director Alan Jenkins. The new director Gary Anderson only had control over the parts that did not delay the completion date.
The engine was a Ford - Cosworth CR-1-V10 naturally aspirated engine from Cosworth with a displacement of 2,998 cm³ and a cylinder bank angle of 72 °. It developed around 589 kW (790 hp) at 16,200 rpm. Cosworth was able to save around 30 kg on the engine compared to the previous year and so it now weighed only 100 kg. As part of the partnership with Ford, the team received this engine exclusively. The self-developed semi-automatic transmission had six gears. A double wishbone axle with internal springs and shock absorbers operated by push rods was used as the front and rear suspension . The material for this came from Penske , the fuel was obtained from Texaco and the tires came from Bridgestone .
Racing history
Long-time technical director Alan Jenkins left the team in early January after letting his contract expire. As a replacement, Jordan's technical director Gary Anderson was hired.
The car was completed in late January 1999 and presented to the public in Birmingham . The SF3 had competitive performance and was more reliable than the two previous cars; so they were eliminated only twelve times this season. For comparison: in the year of that, the team's vehicles were eliminated 20 times. As a result, the driver duo around Rubens Barrichello and Johnny Herbert was able to regularly achieve points.
Barrichello was able to achieve three podium positions and three third places and qualify for pole position at the French Grand Prix . At the Spanish Grand Prix , however, he was disqualified because of an irregular vehicle floor. Since he finished the race in eighth place, he did not lose any world championship points. His team mate Johnny Herbert was able to benefit from the numerous failures of the competition at the chaotic European Grand Prix at the Nürburgring and took the first and only victory in team history. At the beginning of the season Herbert was again unable to compete in the Australian Grand Prix under strange circumstances : Before the start, both Stewart vehicles lost oil, which ignited under the vehicles and produced a lot of smoke. The starting process was canceled and Barrichello received the replacement vehicle ( T-Car ) for the restart , so that Herbert had to forego taking part in the race.
With a total of 36 points, four podium finishes and one victory, the team finished fourth in the constructors' championship; this was the best finish in the team's history.
During the season, the main sponsor Ford announced the takeover of the team. From the next season it started as Jaguar Racing . Jaguar Racing could not build on the successes of the Stewart Grand Prix in the following five years.
Painting and sponsorship
Like its predecessors, the SF3 was also white. Ribbons with Royal Stewart tartan , the tartan of Clan Stewart , to which team founder Jackie Stewart belonged, were found on the engine cover and on the sides of the front of the vehicle .
The team's main sponsor was the HSBC bank , which advertised on the side pods, the rear wing and the side of the front wing. Stewart also placed logos of the engine partner Ford on the airbox, the vehicle nose and on the side below the cockpit. Bridgestone and Texaco as further suppliers were advertised on the vehicle nose and on the front wing. Other minor sponsors were electronics company Hewlett-Packard , automotive suppliers Lear Corporation and Visteon, and telephone company MCI WorldCom .
driver
The car was driven by Rubens Barrichello, who was in his third year with Stewart, and Johnny Herbert, who came from Sauber . Luciano Burti was nominated as test and reserve driver.
The engineer responsible for Barrichello was Robin Geary , while Simon Smart was responsible for Johnny Herbert .
Further use of the chassis
A chassis from Johnny Herbert's SF3 was on display at Cosworth headquarters.
Stewart SF3B
The French tire manufacturer Michelin carried out some tests on Formula 1 cars in 2000 to focus on getting into the 2001 season. For this he used a modified Stewart SF3B and a Williams FW21B . At the wheel of the SF3B was the German Jörg Müller .
Results
| driver | No. | 1 | 2 | 3 | 4th | 5 | 6th | 7th | 8th | 9 | 10 | 11 | 12 | 13 | 14th | 15th | 16 | Points | rank |
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| Formula 1 World Championship 1999 |
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36 | 4th | |
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R. Barrichello
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16 | 5 | DNF | 3 | 9 | DSQ | DNF | 3 | 8th | DNF | DNF | 5 | 10 | 4th | 3 | 5 | 8th | ||
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J. Herbert
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17th | DNS | DNF | 10 | DNF | DNF | 5 | DNF | 12 | 14th | 11 | 11 | DNF | DNF | 1 | 4th | 7th | ||
| Legend | ||
|---|---|---|
| colour | abbreviation | meaning |
| gold | - | victory |
| silver | - | 2nd place |
| bronze | - | 3rd place |
| green | - | Placement in the points |
| blue | - | Classified outside the point ranks |
| violet | DNF | Race not finished (did not finish) |
| NC | not classified | |
| red | DNQ | did not qualify |
| DNPQ | failed in pre-qualification (did not pre-qualify) | |
| black | DSQ | disqualified |
| White | DNS | not at the start (did not start) |
| WD | withdrawn | |
| Light Blue | PO | only participated in the training (practiced only) |
| TD | Friday test driver | |
| without | DNP | did not participate in the training (did not practice) |
| INJ | injured or sick | |
| EX | excluded | |
| DNA | did not arrive | |
| C. | Race canceled | |
| no participation in the World Cup | ||
| other | P / bold | Pole position |
| SR / italic | Fastest race lap | |
| * | not at the finish, but counted due to the distance covered |
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| () | Streak results | |
| underlined | Leader in the overall standings | |
Web links
- Vehicle profile at chicanef1.com
- Vehicle profile at fedef1.com
- Vehicle profile at StatsF1.com
- motorsport-total.com Database information on Stewart SF3
Individual evidence
- ↑ statsf1.com: Stewart SF-3. Stats F1, January 1, 2000, accessed March 30, 2020 .
- ↑ a b c d grandprix.com: Changes at Stewart Grand Prix. Grand Prix, January 11, 1999, accessed March 30, 2020 .
- ↑ grandprix.com: Jenkins departs Stewart Grand Prix. Grand Prix, January 4, 1999, accessed March 30, 2020 .
- ↑ modatek.co.uk: Stewart SF3 on display at Cosworth. ModaTek, January 1, 2000, accessed March 30, 2020 .
- ↑ grandprix.com: Michelin test team to be based at Williams. Grand Prix, February 21, 2000, accessed March 26, 2020 .
- ↑ grandprix.com: Michelin sneaks closer to Formula 1. Grand Prix, September 18, 2000, accessed on March 30, 2020 (English).
