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    Rudders
    19 Posts ยท 8 Followers ยท 9 Photos ยท 58 Likes
    Began 8 months ago by
    Rear Admiral
    United Kingdom
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    Latest Post 2 months ago by
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    chugalone100
    Sub-Lieutenant
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Rudders
    17 Views ยท 1 Like
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    Country: ๐Ÿ‡บ๐Ÿ‡ธ United States
    Online: 14 days ago
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    Lew:
    Yes, I also have seeing many tugs and push boats here in the Miami river.
    I work for a display company here in Miami and we just finished working with the West Plam Beach Boat Shot.
    Many of the huge barges where used as platform for the vendors and there is where we do our show booths set ups.
    Here is a sample of our work. The Yacht Company is Northrop & Johnson.
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    LewZ
    Commodore
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Rudders
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    Thanks Roy.

    I understand that here in the US one can book a room on board some of the towboats. Here in west-central Florida, they only have smaller towboats, some handling the fuel barges bringing them to the cruise ships. Attached is a view of one of Tampa's towboats. My son took the photo from the deck of the cruise ship he was on (at dock).

    An interesting fact about the towboats with z-drives is that the propellers only turn in one direction. The prop is designed for maximum efficiency in that direction. For example, to back up the drive is swung 180ยฐ. I assume that regular z-drive tugs do that as well. (Anyone know?)

    Lew
    Florida, USA
    Lew Zee (LewsModelBoats.org)
    roycv
    Rear Admiral
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Rudders
    40 Views ยท 1 Like
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    Thanks Lew Z for that. I have been fascinated by the Towboats for years now, I believe some of the companies allow a day on a towboat as a visitor.

    I have seen several documentaries showing the working life of the crew as the boats do not stop apart from destinations and locks.

    I am sure it is a hard life but the access the whole country has to cheap transport of goods will keep it going for many many yers.

    Roy
    LewZ
    Commodore
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Rudders
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    Difference between an American towboat with two fixed Kort nozzles with six rudders (two steering and four flanking) and a towboat with two z-drives as far as the pilot house controls are concerned is in the photos attached.

    Korts and six rudders: rudder/throttle lever controls (first photo).
    Z-drives: Steering/throttle controls (second photo).

    Lew
    Florida, USA
    Lew Zee (LewsModelBoats.org)
    BarryS
    Warrant Officer
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Rudders
    48 Views ยท 1 Like
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    Hi Mike,
    That is the picture of the one I built following the instructions.
    Yes, I used it and it is still installed on the "springer" in my avatar.
    It works very well in the squared off form.
    I am not sure about a round tube. In my mind the
    water would flow around a tube much smoother and not cause
    the same amount of deflection as a square edge.
    Barry
    Mike Stoney
    Commander
    ๐Ÿ‡จ๐Ÿ‡ญ Switzerland
    ๐Ÿ“ Rudders
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    Country: ๐Ÿ‡จ๐Ÿ‡ญ Switzerland
    Online: 2 days ago
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    Hi Barry,
    I wonder if a round profile would be better than a square one?
    What is the effect of the square?
    Have you already had experience with it?
    Hobbyist greetings Michel-C
    if you don't ask, you won't get an answer!
    BarryS
    Warrant Officer
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Rudders
    64 Views ยท 3 Likes
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    Roy,
    Not my original idea. As I recall some time back it was on the RC Groups Springer thread.
    I tried it back then and it works surprisingly well for slow tugs.
    The picture is of when I actually set up the first one for trial in a Springer.
    Barry
    Olly999
    Leading Seaman
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Rudders
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    Very similar to the Schilling rudder idea, which improved low rev manoeuvrability.
    roycv
    Rear Admiral
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Rudders
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    Hi not sure how that improves things? Where did the idea come from?
    Roy
    BarryS
    Warrant Officer
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Rudders
    70 Views ยท 3 Likes
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    Roy, That is a lot of rudders!
    I don't know if you have tried this but I have found it works very
    well for maneuverability. By soldering on a square brass tube
    on the rear of the rudder it certainly helps.
    I will attach a picture for your inspection.
    Barry
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