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    RHBaker
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    Member No.#2935
    Registered๐Ÿ“…27th Jun 2014
    Last Online๐Ÿ“…29th May 2020
    City๐Ÿ“Ancaster
    Country๐Ÿ‡จ๐Ÿ‡ฆCanada
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    Age๐Ÿ‘ถNot Provided
    Posts๐Ÿ’ฌ371
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    Recent Posts
    ๐Ÿ“ Triple Screws
    10 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    Doug,
    From my research of the Brave class the outer screws did counter rotate with the centre screw rotating clockwise.
    The twin screw Vosper RAF Rescue and Target towing boats had both screws rotating clockwise, large torque reaction as they had twin Sea Griffin engines!
    Rowen
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    ๐Ÿ“ Brushed or Brushless.
    12 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    Hi Doug - been there and done all of that!
    Happy to help guide others from following in my footsteps.
    Rowen
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    ๐Ÿ“ Brushed or Brushless.
    13 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    Bill,
    Should also have added, with brushed you can get away with one ESC to control both motors.
    With brushless one ESC per motor is needed. In my mind your choice is the right one, even without considering the reduced investment.
    Rowen
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    ๐Ÿ“ Brushed or Brushless.
    13 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    Have built several models, some with brushed and some brushless.
    My experience is that for the slower, heavier vessels prefer the tractability of brushed.
    For planing hulls prefer the performance of brushless, preferably outrunners with their higher torque.
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    ๐Ÿ“ Damen Stan 4207 Plans
    15 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    That sounds great. Hope you will write a blog so can see your progress
    Rowen
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    ๐Ÿ“ What's the best brushed speed control?
    18 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    I used to use Mtronics, but had several failures. They also become expensive when shipped to Canada.
    Have since been using Quickrun by Hobbywing.
    You do not describe the motor size, but have found their WP1060 works well with 500 size range of motors.
    Only complaint is that the leads are too short, easy enough to extend though.
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    ๐Ÿ“ Damen Stan 4207 Plans
    18 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    You have some great looking ships in your harbour. Searcher will be a good addition.
    Let me know how you get on please
    R
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    ๐Ÿ“ Damen Stan 4207 Plans
    20 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    Yes, have them electronically .
    Can send them to you and will need printing locally.
    Can you send me your E mail address as would rather not send them on the website
    Thanks
    Rowen
    Rhbaker25@hotmail.com
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    ๐Ÿ“ Which wood for steaming easily on a model?...
    26 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    Have recently had some success by soaking the wood in water overnight (usually 1/4" sq basswood) and then working it into a jig or frame using a heat gun.
    Guess as the gun evaporates the water into steam and accomplishes much the same.
    Quite surprising how, once the wood gets hot, how easily it bends.
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    ๐Ÿ“ WOOD BENDING
    27 days ago by RHBaker ( Sub-Lieutenant)
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    Have often tried to heat relieve strains in plywood once glued and clamped in place by gentle heating with a heat gun. Never sure just how good it works, but as they have not sprung apart have assumed it is fine!
    Am building a pilot boat model that has a pronounced rounded bow to support a substantial rubber buffer.
    Was wondering how to do this as was reluctant to try the usual wood block sanded to shape approach.
    Decided to cut a length of thin plywood (1/16") to the same depth as the inwale. Held this in a steel tube bender and applied gentle heat. Low and behold the ply gradually relaxed and took up the shape of the bender.
    When cooled the wood was released and most of the shape is retained. Was then cut to length and glued to the frames and bow support, where it fits nicely.
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    ๐Ÿ“ My New Build - Milford Star
    28 days ago by RHBaker ( Sub-Lieutenant)
    Flag
    They are not around the corner for me - living in Canada!
    Agree, they are an excellent company to deal with.
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    ๐Ÿ“ Help
    1 month ago by RHBaker ( Sub-Lieutenant)
    Flag
    Difficult to say, looks rather like a freelance version of a pilot launch or lifeboat.
    Cannot say if it is worth rebuilding, but other contributors have restored models that look in far worse condition.
    If the wood is sound it can be stripped and glued where necessary.
    Without knowing the size, difficult to suggest a motor. As there are so many available though and quite inexpensive am sure worth giving it a go.
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    ๐Ÿ“ Brushless motor couling
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Not unusual. Some shafts fit both screwed propeller and a screwed coupling, thus threaded at both ends.
    If you want to use a coupling with flats and grub screws, just cut the thread off. May have to shorten the outer tube to compensate.
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    ๐Ÿ“ 46"Wooden RAF Crash Tender
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    On my Brave Borderer (about 36"), which has three screws, outer brushless (30mm dia) motors, and the centre brushed.The max current draw, per brushless motor, is under 30 A.
    There is a video of it on this site and at max speed it is more that fast enough. Can get around 1/3 of the forward hull out of the water, which is unrealistic.
    Cannot think on a scale vessel, with scale props and speeds, how 120A could be drawn.
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    ๐Ÿ“ 46"Wooden RAF Crash Tender
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    No, this vessel, the Crash tender, had two props. Many other RAF vessels though had three. Probably where the thinking comes from.
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    ๐Ÿ“ Brushless motor couling
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Agree with the clackety clack noise. I slide a length of plastic tube over the coupling once all is lined up.
    This sleeve reduces backlash in the coupling and quietens it down.
    The centre of the sleeve can as also be filled with grease or oil to maintain lubrication
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    ๐Ÿ“ Hints & Tips - Covid 19
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Gentlemen,
    Thanks for all the suggestions and ideas. The plan was only to load the motors so could get some idea of baseline settings. Accomplished that at least.
    The ideas generated though make me wonder if we could not establish some type of competition.
    Using small vessels: races around a wheelbarrow tub, or inside a tractor tyre, even sprints in a plasters bath!
    Seriously, think this one post has generated more "likes" than my build blogs!
    Stay safe everyone.
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Thanks Doug,
    Was impressed by your Sea Scout report and videos.
    Sounds as if my initial thoughts are reasonable close.
    Good night - long past bed time in your part of the world!
    Rowen
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Doug,
    The picture was to illustrate the plug and wires.
    Took your advice long ago and only use one ESC power lead.
    Actually, now use a separate ESC power supply so do not have either red wires connected.
    Works fine and have sort of "standarized" on this approach.
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    We have the same plug in mind. Perhaps was unlucky; always use WD 40 or a silicon grease to seal though. Anyway, the solder seems to work.
    My next project is a Vosper RTTL, am using the 2 x Turnigy 50A Escs we have been talking about. It has HK brushless motors and the limited trials have, so far, always been terminated because of either motor water leaks or the wire problem. Think may have resolved both issues.
    My future project, which am still toying with, will be a modern 17m pilot boat. Will be around 28/30" long with a double chine hull, should be able to plane gently. The top speed should be around 25kn, much less that the 50 my Brave B or RTTL were capable of.
    Would like to try Quicrun items in it. Find their catalogue a little confusing though, am thinking about 2 or 3s power, around 1500kv motors with ESCs to suite and the appropriate programming card. The props will be either 30 or 35mm, 3 blade. Is that something like your set-up?
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Doug,
    To clarify, am talking about the three wire connector that fits into the Rx and is part of the wires from the ESC. Had hoped my picture showed it. The three wire motor connectors are gold plated and work fine.
    Had to wiggle the ESC plug off the Rx male pins and then remove the female pins from the connector sleeve. You can see a very neat crimped joint where each wire goes into the female pin. Added a small dob of solder onto the end of the wire in the crimp.
    For the battery supply I always use XT60 connectors, had miserable luck with Tamiya.
    Will try 2 x Quikrun brushless ESCs on my next project; from your experience they sound better than the Turnigys. Must agree the programming steps are coarse and could well be a contributor to my challenges.
    Oh well, not much else to do anyway!
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Thanks both for your replies.
    Have now examined my only QUIKRUN ESC (brushed) and see it is crimped, just like the Turnigy. In the year it has been in use it has been flawless though.
    Nevertheless, as had dismantled the plug to check, it is only a moments job to reinforce with solder.
    Did not realize they also made Brushless ESCs, suppose it is too much to hope the HobbyKing programming card will work with them?
    Afraid, in the current circumstances the Chinese are not on my Christmas card list any more!

    Begining to wonder if some of my brushless reservations could be linked to this issue.
    Once we get back on the water will be checking to see.
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Hi Doug
    These are the 50A water cooled, programmable ones.
    Also have the 30A which are similar. Although those work fine they are new. Going to solder anyway - plenty of time on my hands!
    Rowen
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    ๐Ÿ“ ESC Wiring (Turnigy)
    2 months ago by RHBaker ( Sub-Lieutenant)
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    One of the issues raised by my wheelbarrow test was that neither brushless motor would run smoothly. Decided to investigate as one ESC wire had also pulled out of the pin.
    Determined on these ESCs, that all the wires going into the plugs are just crimped in place.
    The ESCs I am using came out of my Brave Borderer build and are well used.
    Nevertheless, took the precaution of lightly soldering all the wires into their respective pins.
    On bench test everything now works smoothly, a great improvement.
    Suggest moisture arising from service encourages corrosion within the plug causing intermittant contact.
    Going to dismantle and solder all my Turnigy ESC connectors to avoid the issue on any of my fleet.
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    ๐Ÿ“ Hints & Tips - Covid 19
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
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    Currently many of us are on some form of lock-down.
    Was anxious to check the ESC programming of the brushless motors in my RAF RTTL project under water load.
    Used an idea had once seen tried by another modeller. Have refined the idea into a Hi-Tech version using constant water top-up, restraining cords and a rubber buffer in my wife's wheelbarrow.
    The 32" hull fit snugly and was able to exercise both motors and establish baselines. Just waiting for our local parks to reopen so can validate on open water.
    Useful method in these trying circumstances.
    Stay safe all
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    ๐Ÿ“ DOUBLE CHINE HULL
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Am working myself up to producing my own plans for a pilot boat hull.
    The best examples, from performance and sea-keeping, all seem to use a double chine hull.
    Has anybody got a set I can base my thoughts upon?
    Be great if they are electronic as Canada post has become even slower than before.
    Thanks
    Rowen
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    ๐Ÿ’ฌ Re: Chris Craft Constellation
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Thanks Garth,
    You have eased my mind! Thought it was just me having difficulty with Chinese parts.
    At least they refund your money quickly, but when you have lost 3 months waiting, small consolation!
    Rowen
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    ๐Ÿ“ DECK PLANKING
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Do not know what happened there!!!

    Anyway,
    Two questions:
    1) Typically how long is a 4" teak deck plank?
    2) How have others finished a deck that does not look to have a skin over it?
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    ๐Ÿ“ DECK PLANKING
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Am building a 68' Vosper RAF RTTL.
    One of the features of the class is the deck is teak planks, with a mahogony rubbing strip around the edge.
    Am using basswood strip where the teak wpuld have been used and a mahogony rubbing strip.
    Have planked several models before, but not been happy with the finish.
    Have ended up using a clear matte aerosol spray over the deck. Not been entirely happy with this as the surface tends to look as if it has a clear matte skin.
    Two questions:
    1) what is the typical length of a 4" deck plank?
    2) how have others finished the deck so it does not look quite so uniform and "shiny"?
    Thanks
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    ๐Ÿ“ Brushless motors
    2 months ago by RHBaker ( Sub-Lieutenant)
    Flag
    Following the improvement gained on my RTTL installation, decided to do the same to my Brave Borderer - again on the bench.
    Removing the "Brake" feature on Fwds/ Rev definitely smooths the transition and gives better control.
    Looking forward to trying on the water where the resistance should give a further improvement. Afraid my access priviledges to our indoor test tank have been restricted!
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