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In the first equation, the denominator in pounds is divided by 64 to convert it to cubic feet (because 1 cubic foot of salt water weights 64 pounds). The denominator is taken to the 2/3 power to make the entire metric unit-less (without this, the denominator is in cubic feet, and the numerator is in
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342:{\displaystyle {\mathit {SA/D}}={\frac {{\mathit {SailArea}}({\text{ft}}^{2})}{^{\frac {2}{3}}}}={\frac {{\mathit {SailArea}}({\text{m}}^{2})}{{\mathit {Displacement}}({\text{m}}^{3})^{\frac {2}{3}}}}}
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It is an indicator of the performance of a boat. The higher the SA/D, the more lively the boat's sailing performance:
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The SA/D, however, does not provide information about a boat behavior in a storm or upwind. A polar diagram from a
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Calculation used to estimate how much sail a boat carries relative to its weight
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539:"Sail Area-Displacement Ratio: SkipperĀ“s Basics"
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413:Ultra light racers, class racers, daysailers
38:) is a calculation used to express how much
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575:This article related to shipbuilding is a
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456:Paris, Jay E. (31 May 2018).
579:. You can help Knowledge by
427:gives a more precise view.
32:sail area-displacement ratio
18:Sail Area-Displacement ratio
425:velocity prediction program
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484:"How Sailboats Measure Up"
517:Sponberg Yacht Design Inc
458:"Comparing Design Ratios"
437:Displacementālength ratio
389:Average offshore cruisers
381:Slow auxiliary sailboats
46:carries relative to its
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631:Nautical terminology
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510:"The Design Ratios"
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646:Shipbuilding stubs
641:Naval architecture
636:Engineering ratios
508:Sponberg, Eric W.
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626:Ship measurements
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543:No frills sailing
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581:expanding it
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373:Motorsailers
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620:Categories
443:References
365:Boat Type
431:See also
408:17 - 19
400:16 - 17
392:15 - 16
384:14 - 15
376:13 - 14
548:11 July
522:9 July
493:9 July
467:9 July
48:weight
513:(PDF)
368:SA/D
577:stub
550:2020
524:2020
495:2020
469:2020
416:20+
44:boat
40:sail
36:SA/D
30:The
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180:lb
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