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    Directory
    (Working Vessel) Fairmount Glacier
    A Billings kit, the Fairmount Glacier (or Alpine - comes with 5 naming options) is a sturdy boat... 2 props in
    kort nozzle
    s, extras I've fitted...37 lights, bow thruster, working fire monitors, radar, & horn. Runs on 2 x 12v 7AH batteries, so runs for a while! Colour scheme makes it visible on the lake too! (Motor: 2 x M500 Mtronix) (ESC: JP Marine) (9/10)
    4 months ago by Harvey Kitten
    Response
    HMVS CERBERUS
    Now there's a coincidence!๐Ÿ˜ฒ I recently saw a documentary about this ship, I think was in the 'Lost Places' series. Took her months to sail to Oz. Not much left now ๐Ÿ˜ญ Interesting prop, looks like the style used in
    kort nozzle
    s and water jets. Colin; Rabeosch & co do these types. See attached cat. Very nicely done Sir, ๐Ÿ‘๐Ÿ‘ Any chance of a video of her in her element?? ๐Ÿ˜ Cheers, Doug ๐Ÿ˜Ž
    5 months ago by RNinMunich
    Forum
    Mahogany in Scale
    Well Martin, its their loss. I try to make everything except the electrics. I suppose I'm lucky in being a retired prototype engineer, with my own machines and space to work. These days I am restoring more than building, I find it more challenging. Spotted a vintage boat in antique shop today, it had diesel marine power and valve and relay control system with a strange adjustable korts nozzle arrangement. I am trying to get the wife to let me buy it. Cheers Colin.
    8 months ago by Colin H
    Response
    robbe neptun tug boat
    Hi Nutrunner, It's a great little tug, good response from the
    kort nozzle
    ! I built one over 30 yrs ago! Good memories! I used a 7.2 volt NiCad back then. It ran for hours on one battery!
    1 year ago by figtree7nts
    Response
    Al KHUBAR 2
    Nice job๐Ÿ‘๐Ÿ‘ BTW: the nozzles are Korts! Kort Propulsion Co Ltd, The Boat House, 20 High Street, Erith, Kent DA8 1QY, United Kingdom http://www.kortpropulsion.com/products/kort-nozzles Merry Christmas, CU next year, Doug ๐Ÿ˜Ž
    1 year ago by RNinMunich
    Forum
    Propulsion Hegi Revell Fairplay V tug model
    I recently bought a on Ebay 'stranded' vintage harbourtug which will be fully rebuild. (I actually bought a NOS hull, and old - but good build - superstructure and all the deckgear & fittings. Except for some essential parts... There's no kortnozzle/rudder and propellor. I would like to know what size of nozzle and propdiameter I should mount. Originally it was designed with a steering nozzle/rudder, but the only item which comes close is the fixed nozzle as used on the Robbe Happy Hunter salvage tug model.(which has twin nozzles) That nozzle would be fixed with a seperate rudder for steering. What would you advise? What alternatives are available? (Making a proper nozzle myself which actually works and looks to scale is out of the question.) Attached three photos: one showing original (steering nozzle) and teh other with this Happy Hunter fixed nozzle, and te drawing showing the design.
    2 years ago by Radiosailor
    Forum
    Propulsion Hegi Revell Fairplay V tug model
    Hi, I can't profess to be a Tug expert but I believe the general rule is 'Low revs & Hi Torque'. I hope one of the tug fans here will pick up this thread. Also this forum might be useful to you; a discussion on
    kort nozzle
    s & tugs 'Fixed or steerable'. https://www.rcgroups.com/forums/showthread.php?1536288-Steerable-kort-nozzle-vs-fixed-kort-and-rudder Good luck, let us know how it goes. Cheers Doug ๐Ÿ˜Ž
    2 years ago by RNinMunich
    Media
    Tug 'DHB Dauntless'
    Scratch Built 1:32 scale Dover Harbour Board Tug, DHB Doughty. The main hull is a standard Damen hull purchased from Mobile Marine Models, see their website for Portgarth. the hull is fitted with 2 x T12 Motors for the main propulsion,2 x 60 degree
    kort nozzle
    s for steering, with 2 x purpose made brass props. Also fitted is a 12v Graupner water pump for the working fire monitor and Fwd spray bar, 2 x Mtronks 15 amp ESC's, Futaba steering servo and Futaba 40 MHz Receiver. Approx Dimensions including fendering Loa 41" Beam 14"
    2 years ago by barnet
    Directory
    (Tug Boat) Shell Pioneer
    This is my first working RC build but here goes. A bit vauqe about the fiqures because we are still on the slipway. it is scratch built from the Phil Thomas drawing "Shell Pioneer" Twin prop with
    kort nozzle
    steering, bow thruster, working fire monitors and lights. Throtle & steering control via Action Electronics P40E mixer. 2x 2S25C4000mA lipoly's. 6 Ch radio (4 used). draws around 4.5A hope to get 30min run time minimum. Third ESC for bow thruster. (Motor: 2x MFA940051LN) (ESC: 3xViper 15A) (5/10)
    3 years ago by marlina2
    Media
    Fairplay
    Modified HegI Fairplay V tug built by My late Father. Mods include bigger 65mm Prop in a brass
    kort nozzle
    , working fire monitors, lights, radar, engine sound and grappling hooks to rescue nitro boats. Built 1980-81.
    3 years ago by Aquaflite
    Response
    Flying Fish
    Alan you are right they are from another thread this was just a quick option I will try & get the trawler out later it is up in the garage loft & take some pictures for you, as I remember the motor was amidships to allow room for a 12v battery the servo horn is straight to the
    kort nozzle
    rudder arm pleased to help if I can Bob ๐Ÿ‘
    4 years ago by Northumbrian
    Directory
    (Tug Boat) Al Khubar
    Built from the Model Slipway Kit. Very manouverable with twin steerable Kortz Nozzles. (ESC: Action) (10/10)
    4 years ago by Dave M
    Media
    Flying Fish
    I bought the hull from a friend who moulds them then built it from pictures I had taken of the actual boat in Blyth harbour it runs on a Graupner 700bb motor 12v battery Robbe Fixed
    kort nozzle
    with Rudder & 60 mm Propeller lights on a separate 6v battery & figures from Adrian Clutterbuck the ships cat was a stray
    4 years ago by Northumbrian
    Forum
    smitt rotterdam
    HI Barry & Mark Yes lack of knowledge of a particular model can make advice difficult. I have fitted kort nozzels to a couple of my tugs and I would advise using a template to ensure you get the nozzles absolutely central with the prop shaft. The instructions with my Al Khubar suggested using a plasticard disk cut to the inner diameter of the nozzle with a hole drilled in the centre to take the prop shaft (both need to be a tight fit). You can then attach the disc to the prop shaft and fix with nuts either side of the disc and align the propshaft to the nozzle. Try and make sure you get everything nice and square as the props should be a close fit, mine had a 1-2mm clearance all round. You may find that the hole in the hull needs to be widened to get the required result, mine certainly did, but you can use plastic padding to make good once finished. if I was doing another I think I would also test fit the motor to make sure of a nice straight drive chain. My Eldergarth had steerable nozzles so alignment is more critical than for a fixed nozzle with rudder. Hopefully your plan shows the position of the prop relative to the rear of the nozzle as some props have an extension on the boss that might foul the rudder, I know from experience with my Al Khubar so I suggest you try your prop in position before you finally fix. Hope this will help Barry fit the Korts succesfully. Dave
    4 years ago by Dave M
    Forum
    Too many questions
    Hello folks. I have a 15 year old, 44.5 Inch fiberglass bare tugboat hull, and marabouchI 4540 brush motor that has a very nice enclosed 2.5/1 reduction gear and 3 3/4" four blade propeller. I have machined a
    kort nozzle
    from rotocast bronze. I plan to use lots and lots of batteries as I need ballast anyways, and want a good long run time. The tug will be for play, but will also be used to go out and push In logs to the shore, where have a crane that I can then lift them up for cutting Into firewood. (Salt water) So I wonder If I should swap this motor for a brushless? I would like to use a very large motor and not run It as hard, so the model Is powerfull enough for pushing 1000 lb logs around. Also just not all that Interested In changing brushes and overheating problems. Also would like as low a speed shaft speed as Is reasonable. So buy a very large motor and feed It lower volts? Get lower shaft speeds too? Is this 50 watt 4540 plenty of motor, that will last quite a long time and I should not change anything? Batteries,.... I don't want to have to be a battery expert, leave them In the correct state of charge, or have a masters degree In battery charging. Need weight anyways, so what battery should I be using? Speed controller? Need a special one for brushless, and I don't have any gear yet so I would like to get what will work best, even If that means sticking with the brush motor. Cost Is less an Issue. Thanks for any help you might have. Steve
    4 years ago by PikaSteve
    Blog
    Jervis Titan Tug model with a job
    Hello all. This is a scratch built boat from a fiberglass bare hull that I purchased. The purpose of this build is to give me a toy to play with at my cabin at Langdale BC. This is on the ocean and many log tows go past here so there is a scandalous amount of logs in the water that we burn as firewood on beach patio and our fireplace. The tug will be used to push these back to shore where I can reach them with a pipe pole, and hoist them up with my crane. The boat will be very crude in its finishing, and have very little detail, and the "house" will only roughly represent the tug I am modelling it after. in fact I expect to place a handle on it so I can handle it like a suitcase. it is 45" long and single screw (3.75" four blade prop) I am using a steerable
    kort nozzle
    I built and has a rudder on the nozzle as well.
    4 years ago by PikaSteve
    Forum
    Too many questions
    Hello Dave, and thanks for your help. The motor is actually a MabuchI RS-755VC-4540 and is rated 50 watts at nominal 18 volts, but available to operate at 9-32 volts. 18 volt loaded speed is 7500 rpm, so I hope not to need all 18 volts to get the power I need. As I understand it, the loaded rpm will drop with proportionately with the volts, so a 9 volt pack would be 3750 rpm, for a final speed of 1500 rpm. 12 volts then would be a final full speed of 2000 rpm. This still seems high to me but perhaps as we scale down things speed up? Yes very much want good "very slow" performance, so I think I will go with this brush motor package, and see how it goes. Does 12 volts sound like a good place to start? Motor stall current at 18 volts is 22 amps, (full load is 4) and I suspect that as the volts used drop, the amps drop faster, so I suspect that at 12 volts, a 30 amp speed controller would be lots?. By the way, my stern tube is fully submerged and well below my waterline at both ends as I wanted the thrust to be in line with the boat. My stern tube has no seal, just a brass bushing on each end. Being salt water I want things pretty tight so am considering taking out the bushing on one end and replacing it with one I machine, that gets bigger on the motor end and has a machined area such that I can fit a 1/4" X 1/2" double lip seal for positive sealing. Fill the rest of the tube with waterproof grease mixed with some oil so it does not get too thick? Futaba 4 channel radio the "go to" radio? I would like a non returning stick for fast and slow, as well as non returning (not sprung back to middle) for the steering as when pushing objects, one often has the steering off center for quite a length of time. I tried to add a picture of the nozzle, but so far it does not look to have worked. Also wanted to show a picture of the keel and "Jaws" on the bow. The keel is 1" thick X 3/4" stanless steel bar, and acts as a shoe for the
    kort nozzle
    . At the bow the jaws are this same stanless steel bar, but with angled jaws ground into it so one can "dig in" to a log and push it for the end or side. Thanks again for your thoughtful reply. Steve
    4 years ago by PikaSteve
    Forum
    Seaforth Clansman
    My plan of the SC has little detail of the stern and the
    kort nozzle
    bracing, by any chance do you have details of these items?
    5 years ago by RHBaker
    Forum
    Seaforth Conqueror
    Building a model of this anchor handling/ rig support vessel. Having difficulty In determining how the stern and the
    kort nozzle
    support bracketry Is shaped and Installed. Has anybody and photos or sketches showing these arrangements? Thanks
    5 years ago by RHBaker
    Media
    oakgarth ,doug the tug and a small seaport tug
    here are my three boats, oakgarth 42" twin screw 4 blade props with
    kort nozzle
    s she also has a working bow thruster.She running two speed controllers off a 12volt sla battery and has full working lights I would love to say I built her but I never, all I have done is added lights and give her a full makeover. Next is Doug the26" pusher tug twin screw 3 blade props full working lights and water jet single speed controller futaba radio set up I have just changed the crane on this again I have only done cosmetics to this tug and my last boat is a 20" seaport tug this is what my grandchildren sail and for 60 quid its great thay love it .the paddling pool was 15 quid for argos and perfect for testing well better than filling the bath .
    5 years ago by 0151rogers
    Blog
    the start
    When I first got hold of this sorry state the back had been cut out so the first job was to fill the gap with plasticard and then use fibre glass filler. The rubber strip that came with it was properly fitted around the hull and the hull and superstructure sprayed, a 65mm
    kort nozzle
    with a 60mm prop and shaft was fitted and a 2 1/2 to 1 MFA 540 motor attached
    5 years ago by bassman
    Blog
    Building a Kort Schottel Drive Unit
    I started to build a "Rhine Tug" it's a pusher called the Egrete, from a set of plans that I bought. Selected it because it had some neat challenges. 1st was making the telescoping wheelhouse so that the pilot can see over 2 containers stacked on top of each other. The second was designing/building a KORT SCHOTTEL drive unit. The reason I am starting this blog is to see if any others have build their own Kort drive units. Size wise, I am using a 2" dia. nozzle with a 1.75" propeller. I have the gearing/motor/rudder all worked out and operating, what I don't have is a good method for securing the back end of the propeller shaft to the nozzle. I am looking for suggestions on how to make an assembly that can be assembled/disassembled. The attached photos are version 1 & 2 of what I tried, and a photo of the entire assembly. Thanks in advance for helping. Jeff
    5 years ago by Schifty1
    Media
    Trawler
    Trawler built from a hull bought from a moulder in Newbiggin by the sea based on a trawler fishing out of Blyth harbour it has a Graupner speed 700BB Turbo motor on a
    kort nozzle
    it is nearing completion I will post more pictures when it is finished
    5 years ago by Northumbrian
    Directory
    (Tug Boat) Percy (modelboat's Jasmine)
    Simple model built with my daughter when she was 6. Model very much enhanced by a home made steerable
    kort nozzle
    , turns within its own length. Robust and low windage relative to its displacment, good for a little girl learning. (Motor: std 540) (ESC: SP-6 Hitec) (8/10)
    6 years ago by IanCampbell
    Forum
    Becker rudders
    Hello all......I wonder If anyone has a drawing of a Becker rudder which shows details of how It works. I need two to fit 45 to 50 mm
    kort nozzle
    s for my next project. I've been through everything I can find on the Internet but so far haven't found what I'm looking for. It might end up as something I have to build them myself as the off the shelf ones are too expensive and don't look up to much. If anyone has built these rudders before I'd be most grateful for any help or advice you can offer me. Many thanks In advance Kind regards Mike
    6 years ago by chippy
    Blog
    buiding a tug from a fleet tender kit spring madness ?
    this is a short blog about building a tug from a fleet tender kit that was given to my brother, it was not a complete kit and there were no drawings with it, so he took a look into the box and gave it to me saying go on then make a tug out of that lot then, so here it is, the first thing that I did was to widen the stern by 50mm to enable me to fit two 70mm
    kort nozzle
    s and props, I did this by cutting the bulwarks off of the hull and then building two boxes from the last of the midship rubbing strake towards the stern and then filling them with filler and fairing them to the hull. the deck was replaced with a wooden one as the superstructure also built from wood was moved forwards,the after bulwarks were the rebuilt again in wood. after that it was a simple job to make a new funnel and wheelhous ,but I did use the kit wheelhouse.
    6 years ago by modeltugman
    Directory
    (Tug Boat) game cock
    she is made from an old fleet tender kit that was not complete, by widening the stern by 50mm I was able to fit two 70mm
    kort nozzle
    s, she also has a working towing winch (Motor: caldercraft 900 X 2) (ESC: micro gyro) (10/10)
    6 years ago by modeltugman
    Forum
    Producing Controlled Vectored Thrust In any Direction
    HI David Dynamic positioning is fairly advanced technology for a model boat. Do you have a particular model / purpose in mind? The VP system seems to be much favoured for use in tugs / ferries in the real world, as your research has found, where small spaces and instant changes of thrust are necessary. On a model the real problem is the draught required by the blades. Many of the more recent large passenger/cruise vessels use multiple Kortz nozzles both fore and aft and I assume they can achieve good control as well as providing economic thrust for use at sea, or they would not be so popular. Water jets sound interesting but I suspect the technology would be complex to produce reliable jets. A fellow modeller used a water jet on his model and found that he had to strip the unit right down after each sail as the bearings and shaft were seized. Electronics are already available to control and mix two propellers to control speed and direction so if you can find or design 360deg rotating Kortz nozzles the solution may be in sight. Apart from the cost I believe Graupner may be up for sale so supplies may not be easy to come across. I'm all for british brains and innovation ๐Ÿ˜€
    6 years ago by Dave M
    Forum
    Producing Controlled Vectored Thrust In any Direction
    All depends on how deep your wallet is as to how complicated you decide to build, plus would you realistically need such a high rotation of prop movement on a model boat? Sometimes simple is more longer lasting than expense. A lot can be achieved with
    kort nozzle
    s and a bow thruster in model boats, both very reliable items with little maintenance in service.
    6 years ago by Gregg
    Media
    Cervia,Wyola, Old Trafford
    Hello from Australia Thought it was time I made a an effort. Three of my models shown here at last years local model show in Port Macquarie. L to R they are Cervia,now 20 years old,Wyola, an Australian built tug.Twin motors and
    kort nozzle
    s.and Old Trafford, MSC paddle tuc in 1/35 scale. All are totally scratch built. The only things bought were materials,paint and glue, Except the stantions for Old Trafford. Currenly finishing a Maycraft Mercury(started in 1962 in England) and a Vosper fireboat.Hope this may be of interest
    6 years ago by peteinoz
    Blog
    Mirium Moran
    the next little job was to align the propshafts and nozzles. the way that I do it is to loosley align the shafts with the motors and then make a disc to fit into the
    kort nozzle
    aand screw it onto the pouter end of the propshaft and align the disc with the rudder shaft centre line this is the turning point in the centre of the nozzle. once happy the shaft and kort bearers were bedded in with fibre glass paste.
    6 years ago by modeltugman
    Response
    Mirium Moran Build
    Well made so far, am enjoying your build description and looking forward to following the rest. Haven't had any experience with korts nozzles so not fully conversant with their operation. the size and shape look really good.
    6 years ago by Colin H
    Blog
    A 1/24th scale Mirium Moran
    This Is a build that Is ongoing at the present time. Moran towage have let me have a set of plans for this tug, she Is a typical American Harbour tug and twin screw.. the model Is built at 1/2" to the foot, which gives amodel of 54" long with a beam of a massive 16", I have decided to fit It with two
    kort nozzle
    s of 4.125" dia with props of 4" dia, and I shall be using two 12volt M.G. Roadster cooling fan motors , which came from E bay at ยฃ30 each brand new. The fist thing that I did was to get the pland blown up to 1/24th scale at the local print shop. then I transferred the hull lines to card cut them out and assembled on the bench to make sure that all was straight and fair.
    6 years ago by modeltugman
    Forum
    Hull Materials
    Yes, power by battery. We just submitted a final Product Design Specification (PDS) for our boat and have included the battery price in it: looking to spend up to ยฃ15 on batteries. Now we can start sketching up concepts and doing more detailed calculations. Our next step will be to design and fabricate the hull, which will be paramount to the projects' success. The Kortz nozzles seem like a great idea, however after discussion with our adviser, he feels it would defeat the purpose of directional control purely from the props. We will be controlling it via normal RC control, however we feel if we have time that control via an everyday controller such as a WiI remote would be pretty smart and not too hard to accomplish ๐Ÿ˜Š ! Thanks for all this help by the way, it's giving us a far clearer insight as to how we should go about the project ๐Ÿ˜Š !
    7 years ago by SandyDola92
    Forum
    Hull Materials
    You seem to be planning well. Power by battery? will this be free or included in the motor cost? I can understand your preference for the hull style but you really need to calculate the turning forces involved and perhaps do a mock up to test before committing to final measurements. Motors do need to be reversible as this will provide the turning force required. Motor size will be determined by the actual hull size and shape together with prop selection. Brass 3 or 4 blades work well, I would avoid the coarse fast racing types as they will make control difficult. The kortz nozzles are really just pieces of tube mounted on a vertical bearing which can be traversed from inside the hull, relatively easy to fit and don't need to be very close fitting for your intended use. I had assumed normal model rc control and am not sure what is available for WiI style. Glad you like the Eldergarth ๐Ÿ˜€
    7 years ago by Dave M
    Forum
    Hull Materials
    The slalom is really just to show off just how good the directional control of the boat is without the use of a rudder. The slalom course will be set by ourselves based on how well we think the boat will perform. We had a toss-up over using a more stable option of hull (catamaran) and a more nimble hull type (single hull). We opted for the catamaran style hull as we felt the stability of the boat was more Important than the maneouverability. We saw videos of the previous years effort and felt we would like the boat to go a lot faster than theirs. The plans so far are to have: -Catamaran style hull -Length of boat to be around 350-400mm -Have two motors each connected to a prop. Motors ideally to be reversible to have much better turning action. -To have a load bearing capability. So a small loading bay would need to be present. -Boat to be controlled by WiI style remote if possible. -Operating time of 15 minutes -Operated from a distance of 7.5m The
    kort nozzle
    idea looks great, how easy would it be to Implement into the design? I'll have a look at the different motors on offer. We set out a budget below as follows: -Motors ยฃ30 - ยฃ40 -Control ยฃ30 - ยฃ40 -Props ยฃ10 - ยฃ15 -Hull ยฃ10 - ยฃ20 Very Impressive pictures of the tug boat you have, looks like you spent a great amount of time on it, looks brilliant ๐Ÿ˜€ !!
    7 years ago by SandyDola92
    Forum
    Hull Materials
    Interesting conversion of the wave height - in my experience water can not be scaled! I see the word slalom is used - does this equate to some form of race? Ie will you be competing with others on a timed basis? Manouverability and speed are not really that compatible so you catamaran would be ideal for speed but not so good at turns, If you are allowed to use a kortz nozzle this would give good control. Even better if you were allowed to move the nozzle round the prop in a vertical axis giving very powerful direction control. I had a Model Slipway Al Khubar tug that used two nozzles, those were fixed and used rudders as per full size. However steering was best done by controlling the motor speeds and direction. One forward and one reverse resulted in a spin on the spot. I used the same in another Tug Eldergarth 48" 1:32 scale (Mobile Marine) and this uses moveable nozzles (no actual rudder) and this also turns on the spot. Attaching a couple of pics of the Eldergarth togive you the idea. The real boat worked the Mersey estuary for many years so would withstand the Sea State stated. I use a couple of Smiths Fan heater motors with a large 12v SLA, twin Electronize ESC's (15amp). Mtronik do similar which may more suit your budget. Hope this helps. Post details of your plans so others can join in the discussion. ๐Ÿ˜€
    7 years ago by Dave M
    Media
    egrete - Rhine pusher tug.
    Built from scratch from plans supplied by my hobby store. has a fully remote controlled operating "elevating wheelhouse" with scissor type lifting legs. operating nav lights, fog horn and twin radar units. Also has remote operated forward winches for attaching pusher barges to the bow pusher posts. fitted with twin
    kort nozzle
    s, handles a treat, steers well and could certanly push more than 3 barges!
    7 years ago by Gregg
    Blog
    Sea going Tug
    For those who are intrested I have added more photos of what stage I'm up too.. I have fitted the
    kort nozzle
    s and motors are in place "which was a tight spot" The deck is coming along nicely. I've been playing around with the superstructer and fitted about 40 coloured beeds to the cabin's panels with LEDS behind the panels. I have fitted a couple of flashing ones to give that operating look at night. Anyway best be back to the workshop, fitting the railing now and I feel the need for burnt fingers with the soldering Iron....... Shane..
    9 years ago by shane
    Blog
    Sea Going Anchor Tug
    It's been a little while between builds but I will explain what I have done with the deck and cabin. The windows on the cabin were cutout In one big section on each side and I made stripes using plywood and glued back In place making them look like window frames, Now the whole top section has been coated with resin for strength and water proofing. I have added the lights Into the control panels from underneath the deck and when all the lights are on they shine throught the holes In the panels, I will be putting clear coloured beeds In the holes to look like coloured switches I have given It a test run and It looks good !! I used 1mm brass for the railings and 3mm angle for the deck I used alloy mesh that Is the same as grating and glued It Into the angle, the steps they are made out of "White Metal" and I soldered them to the brass railing and when ready I will glue them to the deck and cabin. Now this Is the fun part I used "Magnetic Hatch Holders" to hold the cabin In place and the best thing about these magnets Is you can solder wires to the taps on the magnets (1 to each magnet) two on the deck and two In the cabin, This Is the way I supply power to the top cabin without the use of a plug It works well and you can use them for anything that requires power. The motors are fitted (RS 980) x 2 I'm fitting the servos for the
    kort nozzle
    s this week so hoping soon I can give It a test run In the pool ..... I will upload some photos soon !!
    8 years ago by shane
    Blog
    Ocean going tug project
    HI all , Now I know it's not a fire boat, But it's what I'm working on at the moment and when finished then I will build a fireboat. Anyway for those of you wanting to know a bit more it's a "Ocean going anchor tug" no name just a freelance model from a couple of photo's. I'm a memeber of the "Springfield lakes maritine modellers" in Brisbane, Australia and we have compatitions in tug pulling power steering and so on, Good fun !! This boat is built for power pulling and also for show when finshed she will be running a couple of steerable
    kort nozzle
    s with 5 blade kort propellers (70mm) 2 x 900 motors on a 12 volt system. Full running lights as we have a lot of night sails here.. She will have a couple of fire monitors mounted on top of the second deck fully working ( So that's the fireboat part ) I have a small Model boat Fittings Shop and also need something to display running gear & fittings of all types and this is the boat that has been chosen for the project ... But also I would like to build a fireboat to display the water monitors and pumps I Import ( The pumps are great high volume low power ) so any ideas what would make a good craft to build for monitor spraying demo's ???? Shane...
    9 years ago by shane
    Response
    Ocean going tug project
    HI Shane What a splendid sounding tug. I am a big tug fan in the UK and have three at present. Steerable
    kort nozzle
    s make the very maneuverable and their bulky hulls provide loads of room for big motors and extra gear. I have a couple of fire monitors on the cabin top of my Eldergarth. Uses a car wash/wipe pump (12v) and Robbe (modified) monitors. Range is 6'+ but I have a problem with the pressure causing leaks so have to be careful I don't sink the boat! If you look in the Fireboat pictures section on this site you will see a fine model of the Dusseldorf. Plenty of fire monitors on this boat and I believe the owner may have them working. Good luck and please keep the tug pictures coming. Dave
    9 years ago by Dave M
    Forum
    Becker Rudder's
    Thanks for the reply. My 4 rudders are linked via metal rod, so all work in unison so to speak. I was simply thinking of ideas to assist in low speed maneouvering, especially for some competition stuff that was all. I didnt really want to have to radically attack my boat and put a bow thruster in. I thought id try somewhere with a bit more access for now. Well its either becker rudders, or go for an electyronic controller to link between rudder input and each motor controller, so as you turn the rudder, the controller varies each propellor rpm, but maybe thats going too far? I didnt just want to use my boat to speed around the water, I like challenges and having some bouys about the water and "mock harbours" are always good fun and challenging to move in and out of. Thanks for the drawing, it does help, I just have to Ignore the
    kort nozzle
    thats all.
    10 years ago by Gregg


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