This article includes a list of general references, but it lacks sufficient corresponding inline citations .(May 2019) |
Category | USAC IndyCar | ||
---|---|---|---|
Constructor | Team Lotus | ||
Designer(s) | Colin Chapman Len Terry | ||
Predecessor | Lotus 34 | ||
Successor | Lotus 42 | ||
Technical specifications [1] | |||
Chassis | Aluminium monocoque. | ||
Suspension (front) | Double wishbones, inboard coil springs over dampers. | ||
Suspension (rear) | Reverse lower wishbones, top link, twin radius rods, coil springs over dampers, anti-roll bar | ||
Length | 155.9 in (396 cm) | ||
Width | 73 in (185 cm) | ||
Height | 31 in (79 cm) | ||
Axle track | Front: 60 in (152 cm) Rear: 60 in (152 cm) | ||
Wheelbase | 95.9 in (244 cm) | ||
Engine | Ford 4,195 cc (256.0 cu in) DOHC 90° V8, naturally aspirated, mid-mounted. | ||
Transmission | ZF 2DS-20 2-speed manual gearbox. | ||
Power | 500 hp (370 kW) | ||
Weight | 612 kg (1,349 lb) | ||
Competition history | |||
Notable entrants | Team Lotus | ||
Notable drivers | Jim Clark Bobby Johns Dan Gurney A. J. Foyt Mario Andretti | ||
Debut | 1965 Indianapolis 500 | ||
|
The Lotus 38 was the first rear-engined car to win the Indianapolis 500, in 1965, driven by Jim Clark. It was run by Lotus at Indianapolis from 1965 to 1967; a total of 8 were built, most for use by Lotus, but several were sold for use by other drivers, including A. J. Foyt and Mario Andretti. [2] [3]
The Lotus 38 was designed by Colin Chapman and Len Terry as Lotus' 1965 entry for the Indianapolis 500. It was an evolution of the previous Lotus 29 and Lotus 34 Indy designs, but this time with a full monocoque tub chassis; it was powered by the same four-cam Ford V8 fuel injected engine as used in the 34, giving out around 500 bhp. In all of them, the engine was mid-mounted, improving the weight distribution and giving it good handling. The 38 was significantly larger than Formula One cars of the time, but was dwarfed by the massive American roadsters.
The 38 was specially designed with an "offset" suspension, with the car body situated asymmetrically between the wheels, offset to the left using suspension arms of unequal length. Although in theory this was better suited for the ovals (which have only left turns), for example by evening out tyre wear between the two sides, in practice the handling was sufficiently idiosyncratic that the concept never caught on widely.
At the 1965 Indianapolis 500, Clark qualified second with a 4 lap average speed of 160.729 mph (258.668 km/h) with a new one lap record of 160.973 mph (259.061 km/h). Although Clark and A.J. Foyt had both broken the 160 mph barrier in practice earlier in the month, Clark was the first to do so in official qualifying. Ironically, Foyt grabbed the pole with an average of 161.233 mph (259.479 km/h) in a slightly modified Lotus 34 while also turning in a new one lap record of 161.958 mph (260.646 km/h).
Clark led from the start and although Foyt passed him on the second lap, the Lotus 38 roared past on lap 3 and from then on the only time Clark lost the lead was on lap 65 when he had his first pit stop. Foyt led until his stop on lap 74 and from then on Clark was never headed. The Scotsman led all but 10 laps and won with only four other cars on the lead lap, with the rest of the finishers all at least 2 laps behind. With Parnelli Jones finishing second (also in a modified 34), it was payback for Clark and Lotus losing the race in 1963 when many, including team owner/founder Colin Chapman and journalist/author Brock Yates, felt that Jones' oil spewing front engined roadster should have been black flagged.
Lotus returned with the 38 in 1966, though they conceded victory to Graham Hill in a Lola, after some confusion with the scoring due to an erroneous lap chart, and again in 1967 when Clark retired early with a blown engine.
After a fair amount of resistance from American teams who generally believed that rear-engine cars were for "drivers who like to be pushed around", the Lotus 38 had proved that mid-engined cars could make the grade at The Brickyard, and the days of the front-engined roadsters were effectively over (in fact, only 4 of the 33 starters in 1965 were front engine cars). Clark won the 1965 Indianapolis 500 with a then race record average speed of 150.686 mph (242.506 km/h), the first time the Indianapolis 500 had been run at a speed of over 150 mph. The previous record had been set by Foyt in 1964 at an average of 147.350 mph (237.137 km/h). Foyt's win in 1964 in a front engine Watson-Offy roadster was the last time a front engined car would win the Indy 500.
Design elements in the 38 were eventually worked into the design of the legendary Lotus 49, and Foyt's early Coyotes (as well as a number of other contemporary Indy cars) were Lotus 38 clones.
James Clark Jr. OBE was a British Formula One racing driver from Scotland, who won two World Championships, in 1963 and 1965. A versatile driver, he competed in sports cars, touring cars and in the Indianapolis 500, which he won in 1965. He was particularly associated with the Lotus marque.
Anthony Joseph Foyt Jr. is an American retired auto racing driver who has raced in numerous genres of motorsports. His open wheel racing includes United States Automobile Club Champ cars, sprint cars, and midget cars. He raced stock cars in NASCAR and USAC. He won several major sports car racing events. He holds the USAC career wins record with 159 victories, and the American championship racing career wins record with 67.
The Milwaukee Mile is a one-mile-long (1.6 km) oval race track in the central United States, located on the grounds of the Wisconsin State Fair Park in West Allis, Wisconsin, a suburb west of Milwaukee. Its grandstand and bleachers seats approximately 37,000 spectators. Paved 68 years ago in 1954, it was originally a dirt track. In addition to the oval, there is a 1.8 mile (2.8 km) road circuit located on the infield.
The 49th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Monday, May 31, 1965.
This article discusses the year-by-year history of the Indianapolis 500 race.
The 52nd International 500 Mile Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Thursday May 30, 1968. For the second year in a row, one of Andy Granatelli's STP Turbine-powered machines was leading late in the race, but once again, it failed within sight of victory.
The 63rd 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana, on Sunday May 27, 1979. Second-year driver Rick Mears took the lead for the final time with 18 laps to go, and won his first of four Indianapolis 500 races. It was also Mears' first of a record six Indy 500 pole positions. Brothers Al and Bobby Unser combined to lead 174 of the 200 laps, but Al dropped out around the midpoint, and Bobby slipped to 5th place at the finish nursing mechanical issues. It was also Roger Penske's second Indy 500 victory as a car owner.
The 53rd International 500 Mile Sweepstakes was an auto race held at the Indianapolis Motor Speedway in Speedway, Indiana on Friday, May 30, 1969. It was the third round of the 1969 USAC Championship Car season. Polesitter A. J. Foyt led the race in the early stages, looking to become the first four-time winner of the 500. Near the halfway point, however, a lengthy pit stop to repair a broken manifold put him many laps down. Despite a hard-charging run towards the end, he wound up managing only an eighth-place finish, 19 laps down. Lloyd Ruby, a driver with a hard-luck reputation at the Speedway, was leading the race just after the midpoint. During a pit stop, he pulled away with the fueling hose still attached, ripped a hole in the fuel tank, and was out of the race. The incident put Mario Andretti in the lead for rest of the way.
The 50th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Monday, May 30, 1966. The official program cover for the race celebrated both the 50th running of the race, and 150th anniversary of Indiana statehood.
The 48th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Saturday, May 30, 1964. The race was won by A. J. Foyt, but is primarily remembered for a fiery seven-car accident which resulted in the deaths of racers Eddie Sachs and Dave MacDonald. It is also the last race won by a front-engined "roadster", as all subsequent races have been won by rear-engined, formula-style cars. It was Foyt's second of four Indy 500 victories.
The 47th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Thursday, May 30, 1963.
The 45th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Tuesday, May 30, 1961. For the first time since 1949, the Indianapolis 500 was not recognized on the World Championship calendar. The race celebrated the 50th anniversary of the first Indy 500 in 1911.
The 78th Indianapolis 500 was held at the Indianapolis Motor Speedway in Speedway, Indiana on Sunday, May 29, 1994. The race was sanctioned by United States Auto Club (USAC), and was included as race number 4 of 16 of the 1994 PPG IndyCar World Series. For the second year in a row, weather was nary a factor during the month. Only one practice day was lost to rain, and pole day was only partially halted due to scattered showers. Warm, sunny skies greeted race day.
The 76th Indianapolis 500 was held at the Indianapolis Motor Speedway in Speedway, Indiana, on Sunday, May 24, 1992. The race is famous for the fierce battle in the closing laps, as race winner Al Unser Jr. held off second place Scott Goodyear for the victory by 0.043 seconds, the closest finish in Indy history. Unser Jr. became the first second-generation driver to win the Indy 500, following in the footsteps of his father Al Unser Sr. He also became the third member of the famous Unser family to win the race.
The 71st Indianapolis 500 was held at the Indianapolis Motor Speedway in Speedway, Indiana, on Sunday May 24, 1987. After dominating practice, qualifying, and most of the race, leader Mario Andretti slowed with mechanical problems with only 23 laps to go. Five laps later, Al Unser Sr. assumed the lead, and won his record-tying fourth Indianapolis 500 victory. During the month of May, an unusually high 25 crashes occurred during practice and qualifying, with one driver in particular, Jim Crawford, suffering serious leg injuries.
The 1963 Tony Bettenhausen 200 was the seventh round of the 1963 USAC Championship Car season, held on August 18, 1963, at the 1-mile (1.6 km) Milwaukee Mile, in West Allis, Wisconsin.
The Lotus 29 was a British racing car built by Team Lotus for the 1963 Indianapolis 500. It was their first attempt at the event and the two cars which were entered finished second and seventh in the hands of Jim Clark and Dan Gurney. Although they were not the first rear-engined cars built for the category, they were first to prove that the configuration was definitely a potential race-winner, and that the days of the big and heavy front-engined roadsters were numbered.
Leonard E. Terry was an English racing car designer and engineer, known for his work with Lotus, BRM and Eagle. He also designed chassis for many other teams, including ERA and Aston Martin and produced his own car in which he competed.
Indianapolis 500 Evolution is a racing game, developed by British studio Brain in a Jar Ltd, based on the Indianapolis 500 and American Championship car racing from 1961 to 1971. It is similar to Destineer's 2007 game Indianapolis 500 Legends. In the game, players take on the roles of various famous racers from that time period with 21 missions, photos, and movies, as well as competing on courses such as the Indianapolis Motor Speedway, as well as the Milwaukee Mile, Trenton, Riverside, Hanford and Langhorne Speedway. Honey Creek, the name for inner road course of the Milwaukee Mile, is also included, and is still used for various club racing events in the present day.
The Ford Indy V8 engine is a naturally-aspirated, pushrod, V-8, Indy car racing engine, intitally specially designed by Ford for use by Team Lotus, to compete in the Indianapolis 500; from 1963 to 1967. This is the engine that gave Jim Clark the victory in 1965 with his Lotus 38 chassis, Graham Hill victory in 1966 with his Lola T90 chassis, and A. J. Foyt the win at Indianapolis in 1967, in his Coyote 67 chassis.
Media related to Lotus 38 at Wikimedia Commons