This won't answer you question but it has a bunch of otherinfo that might help. Dan Pfeifer has a great Pearson website that has about as much info that you will find on Pearsons on the web. I can't copy and paste 2 things atonce so I post the website address next.Dave Designer Shaw Main Area 258 Hull Speed 6.70Model # 61 For Tri 206 SA/D 16.7First Year 1978 I 35.0 D/L 269Last Year 1981 J 11.8 BR 40%LOA 31.0 P 39.0 L/B 2.93LWL 25.0 E 13.3 LWL /B 2.36Beam 10.6 Eng A4/D OR 19%Disp 9,400 CSF 2.01Draft 5.5 MCR 23.3Sail Area 465 M/F 1.25Ballast 3,800 PHRF 174