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- Der Lotus 98T war ein Formel-1-Rennwagen des britischen Rennstalls Lotus, der in der Formel-1-Saison 1986 eingesetzt wurde. (de)
- The Lotus 98T was a Formula One car designed by Gérard Ducarouge and Martin Ogilvie and built by Team Lotus for use in the 1986 Formula One World Championship. Development of the previous year's 97T, the car was raced by Brazilian Ayrton Senna, in his second year with the team, and Scottish newcomer Johnny Dumfries. The chassis featured a lower monocoque than the 97T as a result of a regulation change stipulating a reduction in fuel capacity to 195 litres. The powertrain consisted of the new Renault EF15B turbocharged V6 engine, driving through a six-speed, manual transmission by Hewland. The EF15B was to appear in two forms, the standard engine and the "D.P." engine which featured pneumatic valve springs for the first time. At the end of the season Renault introduced the revised EF15C which in addition to the D.P. valve gear also boasted common rail fuel injection and much-revised water cooling through the cylinder head reducing the likelihood of pre-ignition (detonation). Power figures for this period of F1 history are largely speculative as most engine manufactures freely admitted that their testbeds would not have a sufficient power rating to measure the 1.5-litre turbo's output at above 4-bar boost. It is claimed that the Renault EF15B in its pinnacle increment was claimed to produce in excess of 1000 HP at unrestricted boost pressure, thus making it one of the most powerful engines ever used in Formula 1 history. This was, however, during qualifying, where teams used unrestricted boost pressures for maximum power output, and for very quick lap times. These qualifying spec. engines , thanks to the unrestricted boost were pushed to their absolute structural limits and would only last about a couple of clean laps. There were also engines set up for races, and these produced around 900 HP in this trim, which was about the maximum the engine could cope with over a race distance. The 98T was also the final Lotus powered by a Renault engine, as Lotus switched to Honda for the following year/season. The gearbox came in two variants, a conventional five-speed, and a new six-speed. The six-speed was very much a development gearbox and was largely unreliable. While Senna opted to run only with the five-speed, Dumfries was tasked with testing the six-speed. Both gearboxes featured Hewland internals within a Lotus designed casing. Other notable innovations of the 98T included a two-stage ride height adjustment, water injection through the intercoolers, an early form of barge board (also present on the 97T), and an advanced (for the time) fuel consumption microcomputer. (en)
- La Lotus 98T est une monoplace de Formule 1 engagée par l'écurie Lotus dans le cadre du championnat du monde de Formule 1 1986. Elle est pilotée par l'Écossais Johnny Dumfries et le Brésilien Ayrton Senna. (fr)
- La Lotus 98T è una vettura di Formula 1 con cui il team britannico affrontò la stagione 1986. I piloti furono il confermato Ayrton Senna e il nuovo Johnny Dumfries. (it)
- ロータス98T (Lotus 98T) は、チーム・ロータスが1986年のF1世界選手権参戦用に開発したフォーミュラ1カー。設計はジェラール・ドゥカルージュ。 (ja)
- Lotus 98T – bolid brytyjskiego zespołu Lotus przeznaczony na 1986 rok. Kierowcami bolidu w sezonie 1986 byli Brytyjczyk Johnny Dumfries i Brazylijczyk Ayrton Senna. (pl)
- Lotus 98T — гоночный автомобиль Формулы-1, выступавший в сезоне 1986 года. (ru)
- O 98T foi o modelo da equipe Lotus na temporada de 1986 de Fórmula 1. Condutores: Johnny Dumfries e Ayrton Senna. Essa temporada foi a última vez que a Lotus estampou a cor preta, marca dos cigarros John Player Special em suas carenagens. (pt)
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- Carbon fibre and Kevlar Aluminium honeycomb monocoque (en)
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- 11 (xsd:integer)
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- Double wishbones, pull-rod actuated coil springs over dampers, anti-roll bar (en)
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- Double wishbones, pull-rod actuated coil springs over dampers, anti-roll bar (en)
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- Der Lotus 98T war ein Formel-1-Rennwagen des britischen Rennstalls Lotus, der in der Formel-1-Saison 1986 eingesetzt wurde. (de)
- La Lotus 98T est une monoplace de Formule 1 engagée par l'écurie Lotus dans le cadre du championnat du monde de Formule 1 1986. Elle est pilotée par l'Écossais Johnny Dumfries et le Brésilien Ayrton Senna. (fr)
- La Lotus 98T è una vettura di Formula 1 con cui il team britannico affrontò la stagione 1986. I piloti furono il confermato Ayrton Senna e il nuovo Johnny Dumfries. (it)
- ロータス98T (Lotus 98T) は、チーム・ロータスが1986年のF1世界選手権参戦用に開発したフォーミュラ1カー。設計はジェラール・ドゥカルージュ。 (ja)
- Lotus 98T – bolid brytyjskiego zespołu Lotus przeznaczony na 1986 rok. Kierowcami bolidu w sezonie 1986 byli Brytyjczyk Johnny Dumfries i Brazylijczyk Ayrton Senna. (pl)
- Lotus 98T — гоночный автомобиль Формулы-1, выступавший в сезоне 1986 года. (ru)
- O 98T foi o modelo da equipe Lotus na temporada de 1986 de Fórmula 1. Condutores: Johnny Dumfries e Ayrton Senna. Essa temporada foi a última vez que a Lotus estampou a cor preta, marca dos cigarros John Player Special em suas carenagens. (pt)
- The Lotus 98T was a Formula One car designed by Gérard Ducarouge and Martin Ogilvie and built by Team Lotus for use in the 1986 Formula One World Championship. Development of the previous year's 97T, the car was raced by Brazilian Ayrton Senna, in his second year with the team, and Scottish newcomer Johnny Dumfries. The chassis featured a lower monocoque than the 97T as a result of a regulation change stipulating a reduction in fuel capacity to 195 litres. The powertrain consisted of the new Renault EF15B turbocharged V6 engine, driving through a six-speed, manual transmission by Hewland. (en)
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- Lotus 98T (de)
- Lotus 98T (fr)
- Lotus 98T (it)
- Lotus 98T (en)
- ロータス・98T (ja)
- Lotus 98T (pl)
- Lotus 98T (pt)
- Lotus 98T (ru)
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