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It's not hard to understand. The smaller the wind tunnel, the less it can be relied on for accuracy.
Every credible technical reference states that; to suggest otherwise is simply to mislead.
It's the major reason why no major car manufacturer, race team, etc, uses small wind tunnels to test full-size vehicles. Instead, they spend hundreds of millions of dollars building huge wind tunnels.
This isn't a new idea - Volkswagen built their full-size wind tunnel in 1966.It had a 5 per cent blockage factor.
I won't bother contributing further to the thread: night doesn't become day just because someone here says so.
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