Mexican shipyards

Discussion in 'Boatbuilding' started by Leonwaves, Jul 27, 2020.

  1. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    If you had a larger un-powered or de-powered vessel converted to a barge, you might need something to push her around with. Not towing across the harbor, but shifting position at the dock, she is powerful enough on a calm day. About two knots or less, is as fast as you want to move in these maneuvers. Longer tows, fancier maneuvers, add more small tugs. Or, hire a big one. Maintaining a large powerful tug for a rare move, isn't economical.

    This is a fiberglass hull, so non-rusting. small enough to be trailer-able, so relocatable coast to coast behind a personal vehicle.. And reasonable priced considering it is already refurbished!

    If your big boat was anchored out, this would make a comfortable sheltered transport, ferrying people and groceries back and forth from the dock.

    Used 1965 Custom Harbor Tug, 43440 Marblehead - Boat Trader https://www.boattrader.com/boat/1965-custom-harbor-tug-7445885/
    1965 Custom Harbor Tug
    26 feet LOA $19,900
    Originally named El Toro, was custom built as a harbor tug in 1965, in Newburyport, Massachusetts. Powered by a 135hp Ford Lehman Diesel with a Hurth gear driving a 22 inch three bladed propeller. Solid hand-laid fiberglass hull. Displacement 5,000 lbs. In September 2012 a nine month restoration project began.

    [​IMG]


    compare with



    1993 Truckable 25' Steel Push Tug


    LOA.......................25' Tug Model Bow (No license required)

    Engines..................Twin 453 gm Diesel (rebulit 2 years ago) (each rated continuous 93hp @ 85 degrees F.)
    Fuel Capacity........200gal.
    Gears......................2.5:1 bw gears both rebuilt 2 years ago
    Propellors.............2-24"x22" 4 blade nibral props.


    Was used to push 30'×90' with 50 ton crane 5mph.
    12mph cruise at 4gph

    Sale $58k

    https://www.custommarine1.com/tugs?lightbox=image_1cnf

    https://www.custommarine1.com/tugs


    Other truckable tugs used for sale priced over 100 grand.
     
    Last edited: Jul 29, 2020
  2. Mirones
    Joined: Jul 2020
    Posts: 6
    Likes: 8, Points: 3
    Location: Germany

    Mirones Junior Member

    2-4 Hour Sailtrips is what i currently aim for. the baltic Tourism Hotspot i have choosen has a nice Beach and Direct Trainline leading to the Cruiseship Terminal.
    the only thing they have is a Sandbeach, Restaurants, Habour Tours, old Fishing Trawlers selling Food and a Medium Sized Rhib with 2x350HP giving 20min tours for 20€ jumping over Waves and the Keelwater of Incoming or outgoing Ferrys and Container Ships. But no way of going out Sailing unless you have your own Sailboat or Visit the place when the Hanseatic Sail Event with 250-350 Sailing Vessels is Hosted. Last time i was there we had the Big 3 Ruskies all at one Place: Mir, Sedov, Ex-Padua i cant remember the correct Spelling of the Kruzenstern out of my Head all the time.
    [​IMG]

    Sedov:
    [​IMG]
    Kruzenstern:
    [​IMG]
    Mir:
    [​IMG]
    Its normal to not be able to see the Horizon if the timing of the Vessels being out at Sea matches up.
    in the Main City port we were usally morred in Packs 4-5 Tallships next to each other.
    [​IMG]
    [​IMG]

    cheers
     
  3. Leonwaves
    Joined: Jul 2020
    Posts: 26
    Likes: 3, Points: 3
    Location: Mexico

    Leonwaves Junior Member

    It looks like an Amazing location
     
  4. hoytedow
    Joined: Sep 2009
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    Location: North of Cuba

    hoytedow Wood Butcher

    De veras.
     
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  5. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Worked on oceans, Great Lakes, and western rivers, including Mississippi and Houston ship canal..
    This documentary shows the heavy lashings used to build barges into a tow. I used to build fifteen barge tows, with an underpowered truckable tug. Not shown here, but I'm looking. By the way, there is sixtyfour sets of harrdwired rigging on a fifteen barge tow. A lot of wire jerking to build!



    if I ever fall out of an airplane, I want a sixty foot rigging wire instead of a parachute. The darned wire hangs up on everything!

    The intent of this post, don't under estimate the utility of the smallest tugs. Operator skill is more important than horsepower.

    Not exactly what I sought, but makes the point.

     
    Last edited: Jul 30, 2020
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  6. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    and then BIG TOWS DEEP SEA.




    Just for scale, Leon.
    Did this work for decades.
    Working in Mexico, was towing oil platforms for six years. towed from shipyard to location. Landing newly constructed platform alongside a heavy lift ship, that picked them up from floating on their side, and set them in place on the bottom, standing erect in hundreds of feet deep water.
    From this video, you can understand why towing requires a special different masters license.
    Towing is so much more involved than simply navigating a single ship from port A seabuoy to port B seabuoy, then turning her over to pilots and docking tugs..

    Dynamic positioning is a recent decades innovation. Prior to it's invention, all the maneuvering and maintaining position, was done by eye/hand coordination on the rudders and throttles, by the captain.
    Called shiphandling. it is a dying art, I fear. Computers now imitate the skills once required of captains.

    We used to use three boats to tow a rig that size. A lead boat in center, doing all the navigating, decision making, and a wing boat each side, just staying even with, and a couple hundred feet away from the center lead boat All three boats matched in horsepower, at full power on tow. At beginning and finish, the three boats spread 120 degrees apart. dividing a circle in thirds. Holding rig in position by counter offsetting each others pull. Nobody had dynamic positioning, not even the oil rig. The technology didn't exist until mid 1990s, and not dependable until about 2010.

    "All boats. At mark, change course fifteen degrees starboard. New course 178 degrees true. Mark!'
     
    Last edited: Jul 31, 2020
  7. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Leonwave

    I hope the posts I and others have offered, correctly suggests to you, that boats, ships, the sea, working on the water anywhere, even for fun, is a complicated and not quickly learned lifestyle. Requires years of experience to understand and become safely proficient at.

    Building and outfitting a vessel is an expensive and complicated project. Operating the vessel afterward, is more expense and complication.

    Not trying to discourage you. Just suggesting you have lots to learn. Others learned it, you can too.

    Before you plunk your money down on the table, be sure you do the due diligence homework first.

    Suggest you start small. A boat you won't outgrow, will still be useful even when you have larger boats.
    Something inexpensive to buy and operate. Easy to transport. easy and cheap to store when not using.
    Learn by doing. Experience is the key to expertise. Practice makes perfect.

    Cheers.
     
    Last edited: Jul 31, 2020
  8. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    In the RIG TOW video, the need for A long deep catenary when rigged iron to iron, was explained, and the importance of shortening up early in approaching shallow water.
    If the entire voyage is in relatively shallow water, a different bit of rigging is used, allowing the tow to be closer behind tug. Can't tow iron to iron close up. Something will break, fail!
    Following diagrams explain better than words.

    Shock Strap.JPG 11 or 12 inch diameter braid.
    shock-3.jpg
    17-02-16-Surveillance-2_page9_image8-960x616.jpg

    The older technology and arts of seamanship may be permanently lost if not preserved in posts like this.
     
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  9. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

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  10. Leonwaves
    Joined: Jul 2020
    Posts: 26
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    Location: Mexico

    Leonwaves Junior Member

    Thank you everybody fornall the information. Im obviously very inexperienced in all this world so ill start studying about it from now onwards and take my time to learn and research about different possibilities in this regard. I love this website and ill stay connected to keep learning frkm you senior sailors and buccaneers hehe
     
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  11. hoytedow
    Joined: Sep 2009
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    Location: North of Cuba

    hoytedow Wood Butcher

    The more I learn about it the more I realize how little I know about it.
    At least I haven't drowned yet.
     
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  12. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    HOW ABOUT THOSE FOLKS WHOSE SHOULDERS YOU STOOD ON?
    OH! They ain't complaining. okay. ;)
     
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  13. hoytedow
    Joined: Sep 2009
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    Location: North of Cuba

    hoytedow Wood Butcher

    All I could hear was "Glub. Glub glub glub.", then silence.
     
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  14. Leonwaves
    Joined: Jul 2020
    Posts: 26
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    Location: Mexico

    Leonwaves Junior Member

    Me encanta vuestro estilo
    I love your style guys
     
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  15. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    In the north half of USA, they got, youse guys wait for me. In the south we got, fellas., hold up a minute.
    We ain't guys, we're fellas.
    Them yankees is some guys, well maybe, cause they use the word guys for hollerin at gals too.
    THEY'RE MIGHTY CONFUSED UP THERE!
     
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