Winch for Docking and Undocking

Discussion in 'Boat Design' started by Leopard, Jun 20, 2022.

  1. Leopard
    Joined: Nov 2021
    Posts: 35
    Likes: 2, Points: 8
    Location: Belgium

    Leopard Junior Member

    Could you please tell me the disadvantages of portable winch for docking and undocking purposes using airbags? Can I also use the portable winch for slipway?
     
  2. jehardiman
    Joined: Aug 2004
    Posts: 3,271
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    Location: Port Orchard, Washington, USA

    jehardiman Senior Member

    The winch, portable or fixed, doesn't matter. It is all about the deadman and sleepers.
     
    Leopard likes this.
  3. Leopard
    Joined: Nov 2021
    Posts: 35
    Likes: 2, Points: 8
    Location: Belgium

    Leopard Junior Member

    Okay, but then why does dockyard construct fixed winch house, and fixed winch for slipway? I was primarily thinking about using a portable winch both for dry docking with airbag and also for slipway.
     
  4. jehardiman
    Joined: Aug 2004
    Posts: 3,271
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    Location: Port Orchard, Washington, USA

    jehardiman Senior Member

    Which is it? A drydock or a slipway? For a drydock you don't need airbags or a winch, just capstans or do it bully haul to hit the targets. Only a haul out slipway would need both airbags and a winch. A launch slipway does not need either. I'm confused...have you ever done any of them? A slipway launch, or a graving dock launch, or a drydocking, or a haul out? Different things...different tools and techniques.
     
  5. Leopard
    Joined: Nov 2021
    Posts: 35
    Likes: 2, Points: 8
    Location: Belgium

    Leopard Junior Member

    i have both. fixed slipway and air bag docking slipway. They are side by side. So, I was thinking can I use the a single winch. When I need it for docking with airbag, can I dismantle the winch from the winch house and then use it ? I had to do piling for winch house, so shouldn't I do anything if I want to set it on ground for docking with airbags?
     

  6. jehardiman
    Joined: Aug 2004
    Posts: 3,271
    Likes: 701, Points: 113, Legacy Rep: 2040
    Location: Port Orchard, Washington, USA

    jehardiman Senior Member

    You can and most typically where. Fix the winch in a winch house with the drum parallel to the slipway axis. Fit deadmen in line with the slipways axis then use a big Skookum block to turn the fixed winch cable. Typical setup.
     
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