SR9 Update – 12th September 2005

Production of the SR9 remains on target. Carbon Chassis moulds are now complete, the first nose box is being built, ready for the crash test and the pattern for the rear bodywork is ready for surface finishing.

Mick Hyde, Radical co-founder expands, “The biggest difference between the SR9 and all our previous cars is the carbon chassis and floor. Now the chassis moulds are ready all we need to do is finish machining the aluminium inserts (to which the engine and suspension are attached) and we can start producing our first chassis. We are working with a small, enthusiastic team who have all the relevant expertise and equipment (computer-controlled autoclaves and carbon profilers). Our in-house machine shop, Amicon Engineering, are doing a superb job on the complex inserts.

The floor of the SR9 comprises three parts; the front diffuser, the central floor and the rear diffuser. Unlike the SR8 they are all manufactured from double skins of carbon separated by honeycomb. The patterns are currently being produced from hardwood. The extra strength is required in the floor because of the hugely higher levels of downforce produced when cars travel at 200mph rather than the 160mph of the SR8.

The bodywork pattern is being produced in-house and is made by the same method as our SR8 i.e. a lattice of wooden runners, cut by a computer controlled water jet, assembled and then overlaid with fibreglass and filler. The rear bodywork is ready for its final coat of filler before a high gloss finish is added. Moulds are taken from the pattern ready for final production.



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