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#1
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Anyone know how to convert between PHRF and Portsmouth Yardstick? The Sonata
I sail on has a PY of 1038 - wossat in PHRF-speak? -- Wally www.artbywally.com www.wally.myby.co.uk |
#2
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I convert by using two contour integrals before mapping into the complex
plane. I use CCW integrals around singularities and Hartley window functions were necessary. Then I divide by 2 and add 37. BC "Wally" wrote in message ... Anyone know how to convert between PHRF and Portsmouth Yardstick? The Sonata I sail on has a PY of 1038 - wossat in PHRF-speak? -- Wally www.artbywally.com www.wally.myby.co.uk |
#3
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Bob Crantz wrote:
I convert by using two contour integrals before mapping into the complex plane. I use CCW integrals around singularities and Hartley window functions were necessary. Then I divide by 2 and add 37. But if you do that the result will be metric! Cheers Marty |
#4
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I understand that only works on Tuesdays, right?
"Bob Crantz" wrote in message nk.net... I convert by using two contour integrals before mapping into the complex plane. I use CCW integrals around singularities and Hartley window functions were necessary. Then I divide by 2 and add 37. BC "Wally" wrote in message ... Anyone know how to convert between PHRF and Portsmouth Yardstick? The Sonata I sail on has a PY of 1038 - wossat in PHRF-speak? -- Wally www.artbywally.com www.wally.myby.co.uk |
#5
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Check out http://www.ussailing.org/portsmouth/table_v.htm
It has a conversion table and conversion formulas. |
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Mac PHRF lowered to 135 | ASA |