Hi,

This is a simple conversion I would use, but please do not let them try to score (or even compare) the results with the monohulls!



PHRF = 8.65 x D-PN - 550



where D-PN is the USSA non-wind-corrected Portsmouth from

(http://www.ussailing.org/portsmouth/tables02/tables02mh.asp)



This makes the original Olympic Tornado (63.7 D-PN) approximately 1 second/mile PHRF

A Hobie 16 (76.1 D-PN) approximately 108 sec/mile,

A Gemini 3000 (82.9 D-PN) approximately 169 sec/mile



This is my own concoction, which took me some time to develop so I'll take any blame, so long as it's only amongst the multihulls! Note, the 550 comes from the PHRF conversion from time-on-time, versus the time-on-distance formula: TCF = 650/(PHRF+550) The other part is an attempt to convert the multihull Time Factor (D-PN) to the PHRF world TCF. I'd like others to look at this and challenge it. We need a good system to agree upon so we can show up to some of these PHRF races (and have them show up in ours)!



Good Luck



Steve Bellavia

Hobie FX-One, Beneteau First 265

ELI PHRF Handicap Council