Pictures of the real car:

    
(sources: 1 2 3 4 5)

Screenshots:

History:

The McLaren M2B was the McLaren team's first Formula One racing car, used during the 1966 season. It was conceived in 1965 and preceded by the M2A development car. Designed by Robin Herd, the innovative but problematic Mallite material was used in its construction. The car was powered by Ford and Serenissima engines but both lacked power and suffered from reliability issues.

Driven by team founder Bruce McLaren, the M2B had a short Grand Prix career, entering six races and starting only four. It scored the team's first point at the British Grand Prix and two more points at the United States Grand Prix.

Background and development

Bruce McLaren Motor Racing was founded in 1964; Bruce McLaren was a factory driver for the Cooper motor racing team which competed in Formula One, the highest level of international single-seater competition. For two years the McLaren team had raced in the Tasman Series, a competition for single-seaters that ran during the Formula One world championship off-season, and in various sports car races. Bruce McLaren continued to race in Grands Prix (i.e. Formula One championship races) for Cooper, but by 1965 the team's performances were worsening and so he decided to build his own Formula One car to race the following year. Despite being a skilled engineer himself, McLaren enlisted Robin Herd to design the car. Herd was an aerospace engineer who had previously worked at the National Gas Turbine Establishment (NGTE) where he had been involved with the Concorde project. In September 1965 the M2A development car was completed. Powered by a 4.5 litre Oldsmobile V8 engine, it was used to test Herd's design ideas and Firestone's tyres. With McLaren still employed by Cooper, the McLaren team initially denied that they were building a Formula One competitor, claiming that the M2A was purely a tyre test bed.

At the factory in Colnbrook, construction started on at least two M2B chassis, whilst a third was possibly started but not completed. By December 1965 the M2A had completed over 2,000 miles (3,200 km) of testing and two race engines were ready to be installed in the M2B, Bruce McLaren testing the car at Goodwood Circuit. Also that month, the design team was joined by Herd's former NGTE colleague Gordon Coppuck; Coppuck later became chief designer at McLaren. In February 1966 further testing was carried out in California, United States in anticipation of the start of the world championship season in May.

Design

The M2B was a mid-engined rear-wheel drive monocoque design, monocoques having been popularised by Lotus's 25 of 1962. Influenced by his aerospace experience, Herd built the chassis with Mallite, a material that had originally been designed for internal panelling in aircraft. Mallite is a composite of balsa wood bonded between two sheets of aluminium alloy that is much stiffer than ordinary aluminium alloy, a useful characteristic for a racing car. However, the material proved to be difficult to bend into the curved shapes needed and so, whilst the M2A prototype was made entirely of Mallite except for the steel bulkheads, on the M2B it was utilised only for the inner and upper skins, the remainder being aluminium alloy. Mallite was also complicated to repair after crash damage. Its use did mean though that the chassis was the stiffest then built for an open-cockpit car, with torsional rigidity of nearly 10,000 lb·ft (13,600 N·m) per degree. Glass-reinforced plastic bodywork covered the nose, cockpit and engine. Fuel was stored in rubber bag tanks situated within the moncoque.

Herd's knowledge of aerodynamics and Bruce McLaren's experience with Ford's sports car racing programme combined to spur the team into experimenting with aerodynamic bodywork. The M2A was fitted with a rear wing that produced downforce – downwards pressure on the car and tyres which allows faster cornering – and reduced lap times by three seconds at a test at Zandvoort circuit in November 1965, two and a half years before the Brabham and Ferrari teams eventually debuted wings in a Grand Prix. The team intended to use the wing on the M2B, but the engine problems that occurred prevented this.

The suspension was a conventional wishbone-based arrangement with inboard coilover springs and dampers at the front and outboard coilover springs and dampers at the rear. Braking was provided by Girling discs within 13 inches (330 mm) diameter magnesium alloy wheels. The wheelbase measured exactly 8 feet (2438 mm), and front and rear track was 4 feet 10 inches (1473 mm) and 4 feet 10.75 inches (1492 mm), respectively.
Ford's Indianapolis 500 engine proved to be unsuitable for Formula One.

For 1966 the Formula One engine capacity limit was increased to 3.0 litres from the 1.5 litres of the previous five seasons. McLaren considered and discounted British Racing Motors (BRM), Maserati, Coventry Climax and Oldsmobile engines before opting for a Ford V8 engine. This engine was originally designed for the Indianapolis 500, the premier single-seater oval track race in the United States, and had to be reduced in capacity from 4.2 litres to the 3.0 litre limit. This choice was partly motivated by the belief that it might bring financial support from Ford, although this never materialised. Ex BMW and Daimler-Benz engineer Klaus von Rucker was initially appointed to carry out the conversion of the engine in England. However, progress was slow so the project was transferred to Traco Engineering in California, United States, where extensive modifications were made to the internals under the oversight of McLaren's Gary Knutson. In its 4.2 litre form the Ford engine produced 470 bhp and McLaren expected the reduced capacity version to produce about 335 bhp. In fact, it produced 300 bhp in a narrow power band and was further handicapped by its large size and weight; combined with the gearbox it weighed nearly as much as rival team Brabham's entire car. In order to allow time to further develop the Ford, McLaren also used a Serenissima M166 3.0 litre V8 engine for some of the races. This engine produced about 260 bhp and required modifications to be made to the monocoque but was at least relatively light and compact. Four- and five-speed ZF transaxle gearboxes and a Borg & Beck clutch were employed.

The M2B was originally intended to be raced in a green and silver colour scheme designed by Michael Turner. However, short on money, the McLaren team made a financial deal with the makers of the film Grand Prix – a drama that included actual race footage – which involved the car being painted white with a green stripe in order to represent the film's fictional Japanese "Yamura" team.

Racing history

The M2B scored just three points in the team's debut season.

The Ford-powered M2B made its debut driven by McLaren at the world championship season-opening Monaco Grand Prix. There he qualified 10th on the grid and ran as high as sixth but retired after nine laps due to an oil leak. After Monaco McLaren decided "it looks as though we're going to have to make some fairly drastic moves in the engine room", and so for the next race in Belgium the Serenissima engine was used. The replacement unit did not provide an immediate solution though, terminally damaging its bearings in practice. With no spare, McLaren was unable to start the race. The team missed the next race in France, but at the British Grand Prix at Brands Hatch the M2B finished sixth to score McLaren's first championship point. Another non-start resulted when the Serenissima failed again before the Dutch Grand Prix, and the entries for the German and Italian Grands Prix were withdrawn in anticipation of the improved Ford engine being readied. Thus equipped at the United States Grand Prix, McLaren drove to fifth place and two more points. At final event in Mexico, the rear bodywork was cut away to help prevent overheating but the engine failed during the race. McLaren had intended for Chris Amon, who was already racing sports cars for the team, to race a second car but the engine problems prevented this.
(sources: 1)

Update description:

This is an update for the 1966 McLaren M2B. Drop these files in the car folder to install the update. This means putting them in the ...\Sierra\GPL\cars\cars66\c12 directory.

Disclaimer:

This is not a Papyrus/Sierra product. Use these files at your own risk (although they should not harm your computer in any way). Please do not sell these files for money. This is freeware.

Thanks to:

Paul Skingley
Rémy Rousz
Charles 'CJM' Mark
GPLEA

Main features:

new textures
authentic car shape

DOWNLOAD:

version 1.0 (July 25, 2013) ZIP file 4.74 MB

SRMZ forum release thread link:

here