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Trevor last won the day on January 25 2020

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  1. Trevor

    Vintage IOM

    I know very little about this model as I bought it as a lockdown project in pieces. The hull is fibreglass the deck, keel and rudder wood and the ballast is lead. The A rig has Hood logos on with a 12.6mm alloy mast. The original Sail Winch was a Futaba S9401 modified by Tony Abel Yachts & Winches with a multi turn potentiometer to make it into a drum winch. While this worked it never returned back to the same position so was replaced with a Hi-Tec 725BB. The rudder Servo is a Futaba FPS148. Sorry the picture is upside down but try as I may it will not go back up the other way!
  2. Have you tried e-Magnets UK | Online Magnet Manufacturer and Supplier (e-magnetsuk.com) ?
  3. I don't quite follow what you are saying. The ESC must be plugged into the Throttle slot on the RX or it wont receive a signal. Nothing is plugged into the RX battery slot unless you have a separate battery for the TX in which case the Red lead from the ESC must be disconnected. This is from the Spektrum manual.
  4. Either you have something plugged into the Receiver wrong or the Transmitter is set up wrong. Has this setup ever worked? Is it all new to you? Perhaps you could pull all the servos out of the RX and plug the throttle servo/ESC into each position until it works. The TX can do some clever stuff with channel mapping so you may need to do a reset and start from scratch. If you don't have them the manuals are available to download. Cheers Trevor
  5. Trevor

    Sheeting Out System

    Oh well it was a good idea while it lasted. My ISIS goes from 10th in the fleet to 3rd in light airs so I can’t complain! Now perhaps if I oil the gooseneck .......
  6. Trevor

    Sheeting Out System

    Following a very light air day it occurred to me that a system to fully sheet out the main sail would be jolly useful but I wonder if the rules allow such a thing. Rule C.5.4 (c) States:- Except where achieved by mechanical systems, automated control of rig and/or sails and automated steering and/or navigation are prohibited. Would a shock cord system that kept the main sheet under tension be allowed I wonder? Cheers Trevor
  7. Thanks for that. I found a you tube vid with a step through. I had been in the right place but hadn't changed the values by enough to make the servo move! I am building an RC yacht rescue boat that needs three channels for the "jet drive", two for the electric ducted fan (backup propulsion and artificial wind) and the sixth for the hand that grabs the shroud! Cheers Trevor
  8. When I plug the servo into AUX (Channel 6) on the RX it moves a little so I know it is active but I can't figure out how to control it from the TX! Nothing in the manual that I can see. Cheers Trevor
  9. Hi Darin. That's where it is at the moment so the long aerial can go down the aerial tube that's just under the deck.
  10. Hi FRA Not sure the drain hole is a good idea, at least not on mine as the pot is only just off the keel! I did contemplate not having a pot, velcroing the (sealed) battery to the keel (makes it adjustable ballast) and mounting the RX (waterproof anyway) on top. Cheers Trevor
  11. Hi Crashard Yes the DX6i does have a comprehensive throttle curve function but only if you are using the Helicopter programs! One of the first programming steps is to choose which Model Type, ACRO or HELI. That does beg the question as to whether Helicopter mode will work for sailing. If I get desperate for more subtle control I might try that! Cheers Trevor
  12. OK now I've got Exponential set up on the Rudder and I've also discovered the dual rate/expo switch so I have 30% set on position 0 and 60% on 1 so I can experiment. Sadly the sheets are on the Throttle channel which has no exponential facility!
  13. Thanks Ian Yes that makes sense. Thinking in aircraft logic Ailerons might want to move the same up as down as they work in opposite directions but Elevators might want to go down less than up. I can see why the default is 100%. If you needed to go more than 125% you perhaps need a different servo arm? I had thought of using the exponential feature on the rudder so might experiment with both later on. Cheers Trevor
  14. I am familiar with radio control from having built and used analog systems but now I'm puzzled. I've recently acquired a DX6i and while the sizeable manual is full of stuff it is not at all clear on some topics. I am slowly getting to grips with this digital system but still don't get why some channels can be adjusted from 0% to 125% but have a default setting of 100%. Is this to do with their use on aircraft? Has anyone written a book that explains more about RC and in particular the Spektrum as applied to sailing? Cheers Trevor
  15. Hi. I'm new to RC sailing and I've recently acquired an ISIS dating from about 2006 and wondered if there was any documentation on setup or any drawings with dimensions etc. I am getting lots of advice from club members but some of it is contradictory or not logical. Cheers Trevor
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