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Type: Posts; User: mfr02

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  1. Replies
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    Lots of small manufacturers using 3D printing and...

    Lots of small manufacturers using 3D printing and CAD to produce prototypes for moulding. These invariably need a great deal of cleaning to get the required standard of finish, but are very...
  2. An alternative ESC -...

    An alternative ESC - http://www.mtroniks.net/prod/Boat-Speed-Controls/Viper-Marine-15.htm
    Known to be simple to use and reliable. No idea how the prices would compare where you are, but there are...
  3. Most ESCs intended for scale marine use have...

    Most ESCs intended for scale marine use have center off, proportional forward and proportional reverse, all determined by the stick setting on the TX and no messing about toggling through "brake" to...
  4. A mixer is intended to take information from the...

    A mixer is intended to take information from the throttle channel and the rudder channel and combine them to drive two ESCs differentially. Quite a few on t'interweb. The alternative is to get a...
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    If a yacht is heeled over too far, the rudder...

    If a yacht is heeled over too far, the rudder becomes an elevator, so what you did is what you should do. When you get a sudden gust, it is often accompanied by a change in wind direction. Unless you...
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    If they are all spares for the same boat,...

    If they are all spares for the same boat, probably yes.
    49MHz is not a common model use frequency, in my bit of the world reserved for RTR toys. Check your local regulations, as radio frequency use...
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    If looking for something simple that can be built...

    If looking for something simple that can be built on a budget, have a look here - http://eezebilt.co.vu/ - while the originals were all intended for balsa, there is no reason why foamboard could not...
  8. Is this relevant to the 4-5Kg displacement, non...

    Is this relevant to the 4-5Kg displacement, non planing type cruising boat in the OP?
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    A bit like asking how long a piece of elastic is....

    A bit like asking how long a piece of elastic is. You know the energy stored, 2.6A/H. A motor pulling 2.6A will run for 1H. More current, less time.
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    I suspect that you are looking at a non-existent...

    I suspect that you are looking at a non-existent product. There will be precious few simulator writers who have any idea how a sailboat works and probably fewer customers if they wrote one. The...
  11. Thread: 1m sailboat

    by mfr02
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    285

    Just a late thought - a great many ARTR boats...

    Just a late thought - a great many ARTR boats advertise themselves as "1.8M". This is not the hull length which modelers use to refer to boat size, but very often the largest dimension, in most of...
  12. Thread: 1m sailboat

    by mfr02
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    285

    It is a really good idea to trawl through the...

    It is a really good idea to trawl through the existing threads though to avoid duplicating answers. If you google for model sailboats, you will find a good many links to traders who sell them. If...
  13. Thread: 1m sailboat

    by mfr02
    Replies
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    285

    Depends who you want to race, what class they are...

    Depends who you want to race, what class they are racing, how deep your wallet is, and whether you want to practice enough to win. There is a whole crowd of sailboats that happen to be 1 metre long,...
  14. Being in the UK, any searches that I do tend to...

    Being in the UK, any searches that I do tend to have a strong UK bias. This might not be useful to you, a whereabouts in your profile can be useful. I have found http://www.componentshop.co.uk/ ...
  15. You need a bigger motor. A 600 series, maybe a...

    You need a bigger motor. A 600 series, maybe a 700. I have a similar size boat that will cruise fast (a bit over walking speed) for almost 1 hour, with some planing runs thrown in using a 7 cell...
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    Thats what I meant. With brushed motors, two...

    Thats what I meant. With brushed motors, two wires, reverse the polarity to reverse the rotation. A marine reversing ESC does this under direct control of the stick with the boat out there. ...
  17. Thread: Need Help

    by mfr02
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    286

    Measure the length of the motor can in mm. This...

    Measure the length of the motor can in mm. This will tell you the size of motor, after that, its a case of figuring out its current draw, but modern ESCs, for the same size, tend to be able to...
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    Reversing motors. Buy ESCs that support actual...

    Reversing motors. Buy ESCs that support actual reversing, rather than "can be reversed". Some manufacturers sell forward only ESCs that can have the motor run the other way if two of the ESC-motor...
  19. The important bit is "under load". Any motor...

    The important bit is "under load". Any motor will take a given amount of power to just turn itself over, the rest of the power draw is down to the load, in the case of a boat, this is determined by...
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    What size is it? If it started as a kit, knowing...

    What size is it? If it started as a kit, knowing the overall length is as good a place to star guessing as any. And the previous owner could have started with an Aziz kit but built it as a sister...
  21. First thing is you need to know the amp draw...

    First thing is you need to know the amp draw under load. Then double that to give you a safety margin, and thats the number to look for. Just check the specs on your candidate to make sure it will...
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    Brushless motors and their associated controllers...

    Brushless motors and their associated controllers are a large and growing segment of the model world. Try googling for "brushless model motor". I did, but being in the UK I got most hits from UK...
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    They come with a double drum as standard, its up...

    They come with a double drum as standard, its up to you how to use it. The line does attach fairly directly - it will need to be led around a few corners on its way. Down from the boom to a point...
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    For a winch, try one of these -...

    For a winch, try one of these - http://www.hobbyking.co.uk/hobbyking/store/__18974__Sail_Winch_Servo_13kg_0_7sec_360deg_55g.html
    Despite its misleading name, it does 4 turns rather than the single...
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    If the boat radio has been switched on before the...

    If the boat radio has been switched on before the transmitter, the winch servo might well have stalled itself and died. This is unlikely to happen to the steering servo as power levels are much...
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