In March of 2006, PHRF-LO voted in favour of adjusting all our handicaps by +6 sec/nm.
As a result, our scratch boat was changed from 171 to 177 and thus the formula was adjusted slightly to accomodate that change. Below is the modified version of the original formula used until 2008.
Q = .045
S = Scratch Boat = ASP 177
R = (8.36 x 106) ÷ ((ASP + 378.3)2)
RS = (8.36 x 106) ÷ ((177 + 378.3)2)
TOT = ((1 ÷ √RS + Q) ÷ ((1 ÷ √R) +Q))
or TOT = (685.411 ÷ (ASP + 508.411))