Downsizing chain

Discussion in 'Multihulls' started by kelldog, Sep 28, 2010.

  1. kelldog
    Joined: Jun 2009
    Posts: 42
    Likes: 1, Points: 8, Legacy Rep: 15
    Location: Bakersfield, CA

    kelldog Junior Member

    Greetings to all;
    I am looking to replace my manual windlass ( ughh!) with an electric one on my 42ft Piver. I have 80ft of 5/16th now and I want to downsize to 1/4" but have 150ft of it and then 250" of nylon rode.

    Is this feasable in terms of holding power? Say in 40 knts of wind? (most times it is around 10 or less)

    Kelly.
     
  2. Submarine Tom

    Submarine Tom Previous Member

    Why would you down size?

    -Tom
     
  3. kelldog
    Joined: Jun 2009
    Posts: 42
    Likes: 1, Points: 8, Legacy Rep: 15
    Location: Bakersfield, CA

    kelldog Junior Member

    because I have a manual windlass and I could handle 1/4 inch easier...i was just wondering.
     
  4. catsketcher
    Joined: Mar 2006
    Posts: 1,315
    Likes: 165, Points: 63, Legacy Rep: 790
    Location: Australia

    catsketcher Senior Member

    No way

    the 5'16 is already on the light side for a 40footer. We have it on our 38 footer and would only go up rather than down.

    6mm - 0.8 kg/mt - Break Load 1630kg - SWL 400kg
    7mm - 1.0 kg/mt - Break Load 2550kg - SWL 630kg
    8mm - 1.4 kg/mt - Break Load 3200kg - SWL 800kg

    Stay with the 8mm if you want to sleep well.

    cheers

    Phil
     
  5. kelldog
    Joined: Jun 2009
    Posts: 42
    Likes: 1, Points: 8, Legacy Rep: 15
    Location: Bakersfield, CA

    kelldog Junior Member

    Thanks for all the replies.
    Yeah, it appears the consensus is to stay with 5/16th. Looking for a decent used windlass :)
     
  6. cavalier mk2
    Joined: Mar 2010
    Posts: 2,146
    Likes: 61, Points: 48, Legacy Rep: 214
    Location: Pacific NW North America

    cavalier mk2 Senior Member

    Darn it how can you stay in shape using a windlass? I never use a windlass, I don't have a windlass and I use more than a boat length of chain. So when you get that electric let me know about your manual one, the waters up North can be deep...........
     
  7. catsketcher
    Joined: Mar 2006
    Posts: 1,315
    Likes: 165, Points: 63, Legacy Rep: 790
    Location: Australia

    catsketcher Senior Member

    I have a manual winch on Kankama and like it. It has anchored over a thousand times and it does really well. Light and gets me in a bit of sweat if I go hard at it.

    The specs are from the Muir site.

    MANUAL VERTICAL VMC500

    VESSEL LENGTH
    6 - 12m (19 - 38 ft)
    ___________________________________
    POWER SUPPLY (DC)
    Manual
    ___________________________________
    MOTOR (Watts)
    N/A
    ___________________________________
    MAX LOAD
    227kg (500lb)
    ___________________________________
    WORK LOAD
    N/A
    ___________________________________
    AMPS WORK LOAD
    N/A
    ___________________________________
    RECOVERY RATE
    36cm/revolution (14.5"/revolution)
    ___________________________________
    CHAIN SIZE
    6 - 8 - 10mm (1/4" - 5/16" - 3/8")
    ___________________________________
    ROPE SIZE
    12 - 14 - 16mm (1/2" - 9/16" - 5/8")
    ___________________________________
    NET WEIGHT
    6.5kg (14lb)
    ___________________________________
     

  8. cavalier mk2
    Joined: Mar 2010
    Posts: 2,146
    Likes: 61, Points: 48, Legacy Rep: 214
    Location: Pacific NW North America

    cavalier mk2 Senior Member

    Thanks catsketcher, I like the low weight.
     
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