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Old 08-16-2005
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Peterson

Johns'' data for the Peterson 34 (1979) appear to have come from the sailcalc database, which is notorius for errors (in many cases the basic boat measurements were "reverse-engineered" from the various ratios!).

The Island Yachts/Composite Technologies Peterson 34, built from 1976 to 1981, has a beam of 11''3", not 9''

Here are the data for my boat (1980 Peterson 34):

Principal Dimensions

LOA - 34

Beam - 11.3

LWL - 28.3

Draft - 6.3

Displacement (est.) - 10800

Ballast - 5100 (so the ballast ratio is about 47%)

I - 46.5

J - 14.6

P - 41.3

E - 11.7

Sail Area - 581 (approximately 58% of that is in the foretriangle)

PHRF Rating - 114 to 117 (depending on region and boat modifications)

D/WL - 213

SA/D - 19.02

Theoretical HullSpeed - 7.13

Velocity Ratio -1.1

Capsize Ratio - 1.98

IMS Calculated Limit of Positive Stability - 121

Brewer Comfort Ratio - 22.01


Jeff, I''ll contact you off the board about a visit.

Regards,

Tim
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