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    New project; THUNDER an inland tug
    8 Posts ยท 6 Followers ยท 10 Photos ยท 39 Likes
    Began 20 days ago by
    Lieutenant
    United States
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    Latest Post 5 hours ago by
    Lieutenant
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    Most recent posts shown first   (Show Oldest First) (Print Booklet)
    ๐Ÿ“ Rudder linkage
    5 hours ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 4 Views ยท 1 Like
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    ๐Ÿ’ฌ Add Comment
    Thank you LD. That is another solution should flex in the rudder linkage becomes a problem.
    The servo location as installed would make a push/pull system problematical. I had to offset the position due to lack of freeboard aft. If necessary I could relocate it to the centerline. Weโ€™ll see.

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    ๐Ÿ“ Leak prevention
    6 hours ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 4 Views ยท 1 Like
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    The midship section of this build has no bulwarks. So, I am seeking advice from the sail folks & anyone else about how to prevent leaks at the deck/sheer clamp joint. ๐Ÿ’ก๐Ÿ’ก๐Ÿ’ก๐Ÿ’ก

    Thanks in advance.

    ๐Ÿ“ The deck
    2 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 12 Views ยท 3 Likes
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    Iโ€™ve had another issue in the back of my mind. Given the tumblehome of the bulwarks (more significant aft than forward) it is impossible to drop a one piece deck in from above and still have a close fit at the sheer clamp/ bulwark junction.

    1st photo: A template from stiff cardboard. Difficult to bend to install & terrible fit A 1/16โ€ thick basswood sheet would probably be impossible.
    2nd photo: A thin cardboard template that could slide into place between the aft bulwarks to form the deck aft of the wheel house.

    Hmmm! Tried sliding aft portion of stiff template into place. Seems to be just enough give in the fwd bulwarks that a single piece deck is not out of the question.๐Ÿคž

    Comments, suggestions welcomed.

    ๐Ÿ“ Bilge work
    3 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 18 Views ยท 4 Likes ยท 1 Comment
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    Progress on running gear location. Iโ€™m not real happy with the long servo linkage to the rudder but if it becomes a problem I have several fixes in mind.

    ๐Ÿ’ฌ Re: Bilge work
    3 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง luckyduck ( Sub-Lieutenant)
    โœง 17 Views ยท 4 Likes
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    Chum - why not just use a double linkage to and from the rudder - i.e.push/pull which would ensure the wire linkage is taught in both directions?
    ๐Ÿ“ A challenge pops up
    10 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 48 Views ยท 6 Likes ยท 2 Comments
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    Running machinery located. Obviously not really. Indicative however of a problem I ran into.
    Initial electrical setup worked. But then it was obvious that rudder operation was being lost. It finally stopped working completely. Let the trouble shooting begin.
    Since I was experimenting with a high torque 270 degree servo my first thought was the problem was servo oriented. Switched to a conventional version which still didnโ€™t work.
    Hmmm. Maybe the higher voltage requirement for the high torque servo drained the TX battery. Charged the Taranis, plugged in the HT servo, no good. Same for conventional servo.
    Okay, since I had tweaked the Taranis program for this particular build I deleted the build program & copied a program I knew worked perfectly for another boat. Same drill with the HT & conventional servo but still no operation.๐Ÿ‘Ž
    Maybe an RX malfunction. Changed it & tried conventional servo. No luck. ( At this point not worth testing HT version since the conventional servo failed to respond).
    Okay, the h___ with it; think it over for awhile!
    Next day, a few more variations of combinations of above but only changing one thing at a time. Still nothing!
    An AHA,๐Ÿ’ก, moment. The esc must be the problem even though the motor always spun flawlessly. Changed the esc, tested with a conventional servo & success!๐Ÿ‘ Switched to the HT servo & it too worked.
    All part of the fun of building.
    Photo obviously not the final running gear placement. Motor placement is good.

    ๐Ÿ’ฌ Re: A challenge pops up
    7 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 34 Views ยท 3 Likes
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    Thank you Alessandro.I had not thought of that.I will test the esc with battery power to replace the BEC to see if that makes the esc useable.
    ๐Ÿ’ฌ Re: A challenge pops up
    7 days ago by ๐Ÿ‡ฎ๐Ÿ‡น AlessandroSPQR ( Vice Admiral)
    โœง 36 Views ยท 2 Likes
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    Hello Chum444, I found the description of your problem and how you solved it very interesting.
    Itโ€™s very informative, thank you for sharing.
    The problem is solved but just to talk: you feed everything through a single battery pack? That is, through the bec of the Esc, right?
    I hope I have not misunderstood after the translation from English.
    If so, do not throw the Esc because an Esc with only the Bec not working could be useful in a configuration with separate power supplies. If the receiver has a battery for itself and for the servants, the positive of the bec of the Esc is no longer needed.

    I will follow your work with great pleasure.
    ๐Ÿ“ Oooops!
    17 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 60 Views ยท 5 Likes
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    I always do a massing study of major components. This time it really paid off. Iโ€™m building this based on proportional measurements from a photo plus TLAR, or โ€œthat looks about rightโ€. Applying TLAR to the house indicated the height would have been 22 ft based on my original scale calculation.NOT!!! Led me to revisit scale & properly calculate it. Scale is 1/24; not 1/48. A mystery how I blew it! Now all is good before other irreversible errors occurred.โšก

    ๐Ÿ“ Inland tug; Aligning drive components.
    18 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 67 Views ยท 8 Likes ยท 1 Comment
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    Began aligning, dry/tack fitting the Kort,stuffing box, & Kort rudder post. A rather tricky process. After soldering an oiler tube to stuffing box everything will be secured in place.

    1st photo- 2โ€ diameter steerable Kort nozzle.
    2nd photo - Aligning prop shaft as parallel as possible to keel. Probably not that important to minimize prop walk on this build since it is not fast running.
    3rd photo - Where I think motor/gearbox will be placed.

    ๐Ÿ’ฌ Re: Inland tug; Aligning drive components.
    18 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Cashrc ( Admiral)
    โœง 65 Views ยท 3 Likes
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    Go Bill go!!! Get her done buddy..
    Cash
    ๐Ÿ“ New project; THUNDER an inland tug
    20 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 74 Views ยท 11 Likes ยท 4 Comments
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    Picked up a nicely laid up glass hull of the Smit NEDERLAND. Spoiler alert; it wonโ€™t be the NEDERLAND.โšก

    ๐Ÿ’ฌ Re: New project; THUNDER an inland tug
    19 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 70 Views ยท 6 Likes
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    Started construction of port & starboard sheer clamps. Temporary cross members show location of fore & aft bulkheads of the house. So position of running gear becomes more apparent.
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    ๐Ÿ’ฌ Re: New project an inland tug
    20 days ago by ๐Ÿ‡บ๐Ÿ‡ธ Chum444 ( Lieutenant)
    โœง 73 Views ยท 8 Likes
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    First photo shows the reference point for this build;Inland tug VLB2. Hull bulwark marked for trimming in #2 and cuts made in #3.propulsion will be a single steerable Kort nozzle.
    ๐Ÿ’ฌ Re: New project an inland tug
    20 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง Fred ( Lieutenant Commander)
    โœง 72 Views ยท 6 Likes
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    Hi
    I don't know if these are any help to you
    Fred
    ๐Ÿ’ฌ Re: New project an inland tug
    20 days ago by ๐Ÿ‡จ๐Ÿ‡ญ Mike Stoney ( Captain)
    โœง 72 Views ยท 4 Likes
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    Hi Chum444!
    Have a good start and good luck!
    I'm really looking forward to seeing what you make of it!
    Michel-C.


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