[Rory McNeil]

The riddle about the sailors made my head hurt, but I just tried the formula they have for determining HP from ET,MPH, and weight.
Both my cars were way off, the RWHP the calculator claimed was about what my engine dyno numbers were, the flywheel HP was way too high. I think that calculator is more oriented towards typical street cars, or poorly set up vehicles. I find the old Moroso "Power Speed Calculator" slide rule to be much more accurate. The HP lines up very closely, and the ET and MPH pretty much line up to each other as well.