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Old 01-13-2021, 03:31 PM   #6 (permalink)
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Originally Posted by aerohead View Post
This is the crux of the matter and what anyone using the throttle-stop technique must appreciate.
It's my opinion that the technique fails to quantify the known unknowns, as spelled out by Sovran et al..
Hucho devoted quite a bit of his text to address this challenge. Woe to anyone who sails without this chart.
So you actually have no points to your argument except "the technique fails to quantify the known unknowns".

1. What are the known unknowns that invalidate the test procedure?

2. How do these match with the actual results achieved when a known drag change is made?

3. How have you found the approach in actual use - or are you just theorising again?
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