MARIE G (cambered panels) - Ketil Grieve - Norway

  • 25 May 2015 20:44
    Reply # 3355375 on 1267378

    Hi,

    The rise of the battens and Airstream Depends much on the heel of the boat. The more it heels the better the Airstream follows the battens. There is a lot of creases in the 3rd, 4th and 5th panel because of the generous camber and downforces at the luff when sheeted in. I think that the webbing of the luff is too forgiving, and the rear end of the battens is pulled quite hard downwards. Mind you, my sheeting and sailing angels toward the Wind is quite unheard of to be competitive, and competitive I am, when it blows. I will use the sail as it is at the moment, and modify/ reinforce in the Winter as the camber and sail is better than the old blown out one. I am biased to performance against the Wind, as the sail exells in reaching, and is as good as a tied Down spinnaker downwind. A tied Down spinnaker is the way you sail single/ shorthanded. To sail fast With a spinnaker, it has to be flown at the brink of collapse, With the leading edge curving inwards. Hard work With a big spinnaker.

    I am not shure how much faster this sail is compared to the old one, but I have no plan of changing back. I will know more after a few races.

    Ketil 

  • 24 May 2015 13:42
    Reply # 3353922 on 1267378

    Dear Ketil,

    Good to see the new sail in action.  How much improvement do you find?

    Do you thin the angle of the battens helps - I assume they should be more in line wit the air flow?

    Cheers,  Mark

  • 15 Oct 2014 14:47
    Reply # 3124473 on 1267378

    Luffing up in puffs distort the leading edge of the sail, and I always tried to avoid that, but the brakingforces of the rudder kills more speed than a distorted leading edge. The magig of Edmond Dantes, after I changed rudder, was that you did not have to use exess rudder to keep the course in puffs. I Guess it was more in line With the Chineese junks and their big rudders. 

  • 15 Oct 2014 13:25
    Reply # 3124431 on 1267378

    If I understand Ketil correctly, you do not luff to the puffs (if racing)  You hold a course and let out the sail.  Luffing to puffs works well in a heavy boat,  in a lightweight boat it is all too easy to loose way.  If the self steering is engaged it may be easier to play the sheet?

  • 15 Oct 2014 08:37
    Reply # 3124341 on 3124096
    Anonymous member (Administrator)
    Annie Hill wrote:I've always luffed up in the puffs - I thought that's what you did to get that bit of extra ground to windward!!


    You are of course right, Annie; that's what we do. It is just that some boats seem to gain more than others. The very sharp-nosed  Marie G and Frøken Sørensen seem to be very good in this respect.

    Arne

  • 14 Oct 2014 22:38
    Reply # 3124096 on 1267378
    I've always luffed up in the puffs - I thought that's what you did to get that bit of extra ground to windward!!
  • 13 Oct 2014 20:17
    Reply # 3122559 on 1267378
    Anonymous member (Administrator)

    Funny, Ketil.

    Your experience with Marie G is the same as I had with Frøken Sørensen this summer. Just as with your boat, I found I could luff up quite a bit in the puffs without losing much speed. Maybe the sharp bows of our boats have to do with that. Anyway, FS outsailed every boat up to 3-4 ft bigger  -  upwind, of course. When I luff FS, the sail at the luff gets distorted, but the leech doesn't flutter. I bet, when you get your new sail, this problem will have been solved .

    Arne

    Last modified: 13 Oct 2014 20:18 | Anonymous member (Administrator)
  • 13 Oct 2014 15:19
    Reply # 3122311 on 1267378

    Thank you Edward,

    I had an outing With one of the fast boys in the pointy brigade on wednsday the 1st October. The Wind was in the region of 20 knots. I just gave him the tiller and he sailed the boat. He owned an X-99 10 years ago, and was very comfortable With Marie G. I took a panel Down in the upwind leg, but shook out the reef when going downwind. To make a 2 hours sail short: I never thought that Marie G could be that fast against the Wind. I noticed what he was doing: he steered the boat With the sheet, not With the tiller. He did not mind the leach fluttering a bit in the sqalls when the boat rounded up a bit, in other Words, he did not use the rudder as a brake, killing the speed. He was constantly doing more than 4 knots to the eye of the Wind. I had a steep Learning curve just by watching, and I used all I learned in the Stord race. Do I look forward to the NeXT season?   

  • 12 Oct 2014 20:34
    Reply # 3121952 on 1267378

    Congratulations Ketil, you and Marie G are really an example to all of us.

    Well done indeed.

  • 11 Oct 2014 14:56
    Reply # 3121538 on 1267378

    I found a race at Stord on their website wednsday the 1st October, held the 4th of October. They invited 2 classes of crewed boats and single handlers and double handlers. As I am still hungry for more, I entered the singlehanded class. I planned to sail to Lervik on Stord on Friday, compete on saturday, and sail home on sunday. Friday came With 30 knots Wind from the South. I left Stavanger harbour With 3 panels up. After crossing the Boknafjord, I reduced the sail to 2 panels up for sailing along the coast North of Haugesund, called Sletta. The Whole trip was 60 NM, done in 7 hours! The singlehanded class had 2 entries, so we where put together With the doublehanders. The regatta was sailed in the same conditiones, but this time we had the Wind straight on the nose. I reefed 2 panels Down and entered a very wet race. Marie G was going very fast against the Wind and Waves, sometimes the Whole foredeck was under water because of steep Waves. I rounded the first mark mid Field, and looked forward to an open Reach, getting Marie G airborne. Imagine my face when the Wind died to a meagre 10 knots. The rest of the sail was a straight forward affair back to Lervik. I thought I had too many boats in front of me to be a contender for a good finishing position, so I was quite astonished when People started coming about to congratulate me With winning the shorthanded class. The trip home was mostly motoring in a calm, and lasted for 11 hours and 55 minutes. So far 2014 has been a good year With 4 first Places, one 2nd and a first Place in a two days competition. Not bad when one considers having a rig that dont sail against the Wind.

     

       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

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