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Re: [PSUBS-MAILIST] submarine kit-builder's society



Models don't have to scale linearly to be useful. Many quantities scale to higher powers, or to fractional ones. The key is to know what the scaling law is, and apply it correctly. When you're only trying to determine one quantity the task is relatively easy; when you need to determine several different ones from the same scale model things get more complicated. Ask any naval architect about towing tank tests of surface vessel hulls, where wave drag and viscous drag have different scaling laws...

Marc

On 6/7/2010 1:53 AM, Jens Laland wrote:
Wil

Thanks for your answer, and especially the inspiring point about
"linearity" of test results using several models, each one built to a
different scale.

Best regards,
Jens Laland





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