Earl Boebert

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About Earl Boebert

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    Anarchist
  • Birthday 09/19/1939

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  1. Earl Boebert

    The new sailing twin skin setup

    L F Herreshoff's Live Yankee was different from all in Groucho's diagram. The mast was a D, it rotated, had dual bolt ropes and the double luff extended about 1/3 of the chord. Another interesting thing about that rig was the jib, which had a rigid, double luff, rotating "jib stay." Cheers, Earl
  2. Earl Boebert

    Teams?

    I was referring to the technology base. Once a part of that is outsourced, it is practically impossible to pull it back in. The outfit you outsourced to will see to that. (I worked for one of those, and making the customer dependent upon us was basic to our business plan and our number one marketing priority.) The other stuff you mention are parts of the supply chain and you can force them inside national boundaries, or at least try. Cheers, Earl
  3. Earl Boebert

    Teams?

    An amusing discussion, but IMHO irrelevant. It's as if there was a Tutankhamun Cup, and people were arguing whether the hieroglyph for "build" included "design." The simple fact is that the context in which the DoG was conceived and which remained in place down to the time of the 1958 NYYC resolution no longer exists. That context was made up of distinct, national technology bases, each of which was "truly representative" of a particular nation. A 1958 Toyota was "truly representative" of the Japanese automotive technology base, as a 1958 Chevrolet was of the American. Globalization killed that context, never to be resurrected. This is true not only of maritime technology but also automobiles, civil aviation, and electronics. A 2019 Toyota is no longer "truly" Japanese any more than a 2019 Chevrolet is "truly" American. A race between two vehicles carrying those labels (which is supposed to happen next year in NASCAR) is about as far from a "competition between foreign countries" as you can get. So all that we have left is a Victorian jug with no bottom and a bunch of people trying to figure out how to monetize it without melting it down. So far that has not been a particularly edifying spectacle, at least to me. Cheers, Earl
  4. Earl Boebert

    The new sailing twin skin setup

    L Francis Herreshoff did a double luff main with rotating mast and rigid jib stay in his "Live Yankee," designed in 1927. Plus a flexible "fish tail" rudder and the highest ballast ratio the R Class had seen to date. Got the rig design made illegal by the NYYC for his trouble. Cheers, Earl
  5. Earl Boebert

    AC36 CLASS RULE

    If the loophole closing was the result of somebody reading this thread, I think I deserve at least a gimme cap from ETNZ Not holding my breath. Cheers, Earl
  6. Earl Boebert

    AC36 CLASS RULE

    I see the loophole in the clause on crew indication devices (allowing mechanical versions) has been removed. Damn. And here I had already blocked out a nifty pitch-and-bank indicator with a Tesla turbine running on compressed air and driving a mechanical gyroscope, for sale to the highest bidder. Cheers, Earl
  7. Earl Boebert

    Where are they now? - Retired America's Cup Boat

    Great images. Fascinating guy, Vanderbilt. Treated like dirt by his mother, the formidable Alva Vanderbilt Belmont, he supposedly took up sailing because she hated being on a boat. He invented the game of Contract Bridge, and wrote some of the most incisive analyses of racing rules ever done. He once described the process of tuning a J Boat as "grains of sand and drops of water." Still true today, right down to the toy boats people like me sail. Cheers, Earl
  8. Earl Boebert

    Rules Question: Case 78

    OK, Thanks. So I should assume the phrase " a fleet race either for one-design boats or for boats racing under a handicap or rating system" is exactly the same as the phrase "any fleet race," that is, there is no kind of fleet race which is exempt from the case. Cheers, Earl
  9. Earl Boebert

    Rules Question: Case 78

    Well, a class governed by a box rule and not using a handicap. Cheers, Earl
  10. Earl Boebert

    Rules Question: Case 78

    Case 78 in the 2018 Supplement states: I understand what a one-design boat is. I assume that the phrase "handicap or rating system" refers to something like PHRF. So my question is: why is the case limited to these two kinds of fleet races? Cheers, Earl
  11. Earl Boebert

    Will they actually sail like the 3d animations?

    So all the important stuff is TBD. OK ... am staying tuned :-) Cheers, Earl
  12. Earl Boebert

    Will they actually sail like the 3d animations?

    Ah, thanks. I was (obviously) unaware of that. Do they specify what control loops are included? Cheers, Earl
  13. Earl Boebert

    Will they actually sail like the 3d animations?

    I have to say, to this (very) old control systems guy, writing a box rule around an FCS just seems nuts. Each FCS is going to be different but presumably equivalent, and each FCS is going to be proprietary to the individual teams. Then (for sake of argument) assume you have a crash caused by a design flaw in the Team X FCS. How do you inform the other teams of a potential flaw without exposing all the gory details and competitive features of the Team X FCS? Or assume (again, for sake of argument) that it is determined that the crash resulted from a flaw in the box rule, either by forbidding something that should have been allowed or allowing something that should have been forbidden. So then what? Do you change the rule? Is everybody now going to reset to a Rev 0 FCS at a late date to exploit the change? What if a team looks at the rule change and discovers "oops, the rule let those guys do xxx and they crashed, and we did xxx as well, so do we revise our FCS or roll the dice?" I think that if you want to eliminate the possibility of an FCS arms race then the only practical way to do it is to develop a standard FCS, put it in a tamper-evident box and make everybody use it. Any other approach just seems to me to have way too much potential for descending into chaos. Or maybe not. People do roll 7s and 11s, but not usually for extended periods of time. Cheers, Earl
  14. Earl Boebert

    AC36 CLASS RULE

    OK, thanks. Looks like roll axis control is going to be "interesting" as well. Cheers, Earl
  15. Earl Boebert

    AC36 CLASS RULE

    Agree on both counts. Has anybody figured out how you tack when flying upwind? Or is touchdown between tacks inevitable? Cheers, Earl