timbo wrote:And the most rigid boundary conditions are in full-scale wind tunnel))
Yes - but you can correlate from wind tunnel to straight line (not straightforward by any means, but comparatively easy compared to a full track).
timbo wrote:
Well, I agree, but straight-line test can show only part of the puzzle, right?
A very small part of it yes. But you can use that data to calibrate other means of estimating performance.
If McLaren's problem truly is getting their design tools set up right, then it will be much more useful than only being allowed to test on race tracks.