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Kevin McCready

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Posts posted by Kevin McCready

    MOB Link

    in MarineTalk

    Posted

    I see a thread has bee locked on this. I couldn't find the new thread. Hoping someone can let me know or IT can amend the locked thread with a link to the new thread.

     

    Reported that he had survival gear on. Not reported that he had personal EPIRB.

    yacht in big trouble off Whangarei

    in MarineTalk

    Posted

    Fish said "Sounds like you may have some prior knowledge or insider trading going on here."

     

    Fish, That's insulting. I have no insider knowledge.

     

    I'm happy to exclude govt from the bet. Like I said, you bet that a registered charity or business cites this incident within the next two years when they call for mandatory boat driver licensing. I bet they won't. Bet?

    yacht in big trouble off Whangarei

    in MarineTalk

    Posted

    Would heading to Great Barrier have been a plan? Hard to navigate if no nav gear or charts, but perhaps someone could have met them in the lee and guided them in? A few weeks ago I was sheltering in lee of Waiheke and the swell from outside in the gulf wrapped right around and swayed us at anchor.

     

    BTW huge thanks to wheels and others who have given me new respect for this coast.

    Pacific Cruising Guides

    in MarineTalk

    Posted

    FWIW, I've heard about, but haven't seen: Landfalls of Paradise  Cruising Guide to the Pacific Islands By Earl R. Hinz. Honolulu: University of Hawaii Press. 1993. Softcover. 369 pages. Includes 150 photographs, 90 charts and 56 Ports of Entry. 25cm x 20cm.  Covering 33 island groups including Polynesia, Melanesia, Micronesia, Galapagos and the other islands of Oceania.

    IOR boats and the death roll

    in MarineTalk

    Posted

    From my sailing database:

    Death Roll =  broaching to windward, putting the spinnaker pole into the water and causing a crash-gybe of the boom and mainsail, which sweep across the deck and plunge down into the water. The Death Roll often results in destruction of the spinnaker pole and sometimes even demasting of the boat. Serious injury to crew is possible due to the swift and uncontrolled action of the boom and associated gear sweeping across the boat and crashing to the (now) leeward side.  
    Jeff Toghill in Sailing for beginners 3rd ed 1998 writes “Much has been made of the so-called death roll, which affects ocean racing yachts when under spinnaker. Basically what happens is that the yacht, running downwind with spinnaker up and full main out the other side, begins to yaw on the seas coming up from astern.
    This sets up a roll, which is aggravated by the alternating pressure of wind in the spinnaker as the boat rolls to windward, and the main as it rolls to leeward. The roll increases as sea and wind effects synchronise to the point where, unless it is stopped, the yacht will roll to windward and dip its spinnaker pole into the sea. This drags the spinnaker down into the water, it fills, and the strain is enormous. If the spinnaker is attached to the top of the mast, chances are that the top of the mast will be pulled off. Even if no structural damage is sustained, the boat is pulled up to a standing halt, and a long process of cutting away must be started before the boat can get under way again.
    The death roll is particularly prevalent in the Southern Hemisphere, where the long rolling swells coming up from the Roaring Forties can quickly induce a heavy roll. It accounts for a great number of dismastings in this part of the world. Although it is very difficult to prevent the roll developing, it can often be corrected by easing the spinnaker sheet before the roll develops.”
    For dinghy sailors, a Death roll is a common type of oscillation while running downwind. It may, and often will, result in a capsize if the skipper does not take quick action to prevent one.
    Methods to cure a death roll include sheeting in the sail, so that it exerts a definite force to leeward and no force to windward, slamming the centerboard down to stabilize the boat, shifting the skipper and crew’s weight to counter the roll and, if all else fails, luffing up slightly to sail on a broad reach instead of a dead run. It is always more efficient, and ultimately faster, to sail with the sail pulled in slightly than to risk a capsize.
     

    So if the magnetic poles flip, what does that mean for us yachties?

    in MarineTalk

    Posted

    I'm a professional science translator and I can tell you that there is sooooo much wrong with this article it's not even funny. Always look at the fine print. It's a beat up copied from that wonderful bastion of intelligent journalism The Daily Mail. NZ Herald has became equally trashy.

     

    Any "flip" is a comparatively slow process and we are in it all the time already. Check your yearly and local magnetic variation on your chart's fine print.

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