Quote:
Originally Posted by aerohead
1) ' [I]t is very important to design a rear body surface which brings the divided streamlines smoothly together. Optimum shapes are 'streamlined' bodies having a very slender rear part.' Hucho, page- 61.
2) ' [L[ow drag can only be achieved when the separation at the rear is eliminated.' Hucho, page- 16
3) ' [T]he optimum shape in terms of drag is a half-body, which forms a complete body of revolution together with its mirror image - produced through reflection from the roadway.' Hucho, page-16.
4) ' [T]he drag of the basic body is achievable. To what extent this can be approached in the development of a production vehicle is therefore more a question of the balance of the requirements of the specification, than of technical feasibility.' Hucho, page-209
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All quite correct, but no evidence whatsoever for how you apply a template shape on this forum for people modifying their road cars. Viz, to purportedly do these things:
- Show where there is separated and attached flow on existing cars
- Guide the shape of rear extensions
- Show how rear spoilers on sedans should be positioned and shaped
- Allow the assessment of the ‘aerodynamic purity’ of cars