The really "Old School" boating thread

[gn7]

I think that's because Lou was a pretty mello easy going guy. That was right when the whole "U" designation issue came up with the Unlimiteds, that was primarily between Rudy and Bill Muncey. K was not a "runabout" class at the time and many didn't use it. Most boats in the "marathon" class ran without a letter designation at all during that period. Shortly later, Rudy, Nordskog, Bill Cooper, and Lou started the "professional racers" association, and the boats started carrying the S/C designation.
Prior to the "professional" association, the marathon guy were pretty much a rag tag, run what ya brung group with no real boat rules. The only real limitation was the Salton Sea 500 which didn't allow supercharging. Unlimited fit them pretty good really. There simply was no limits. Aircraft, tank, multi engines, you name it, it was all OK. Until after the 1965 Salton Sea 500, and then they called out restrictions calling for automotive engines.

KRR came some time after 1965.