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Michael Barclay

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Everything posted by Michael Barclay

  1. Michael Barclay
    Has your club got the grant. If so what will the club be doing with it?
  2. Michael Barclay
    Posted by AndyD on 12/08/2020 07:57:43: ive got six or seven and never had a problem but i dont think i would use them in a expensive model though. I can't see why not. If they are good they are good. If not why use them in anything?
  3. Michael Barclay
    No problems when used with DX6 and DX8. I have six with faultless service.
  4. Michael Barclay
    Does anyone know if Graupner Vector Board is a form of EPP?
  5. Michael Barclay
    Posted by Pete Collins on 02/08/2020 11:06:32: Oddly enough, according to an old lady i know, it DOES cure arthritis! Or, at least, she sprays it on her knee and insists that it helps her mobility. Perhaps someone should conduct some proper scientific tests? Someone I used to sail with claimed exactly the same thing.
  6. Michael Barclay
    esc. 1/ remove outer cover and heat sink and heat sink tape. 2/ flatten fetts so that they all make perfect contact with heat sink. 3/ dip esc in thin epoxy. 4/ when tacky replace heat sink. I have done this with 2 esc. now and they will work underwater with no problems.
  7. Michael Barclay
    Guess this is another HK slagging off thread! If you don't like HK no one is forcing you to buy from them.
  8. Michael Barclay
    92 orders large and small from Hobby-King in the last two years. Nothing missing, all arrived ontime. Couple of small problems I have had have been replaced quickly with no quibble. I often order from EU warehouse as postage sometimes works out cheaper. Items normally arrive in 5 or 6 working days. Don't order from Hong Kong anymore after being hit twice with import charges and post office fees. Like many other businesses there are stock problems at the moment but they will get over it. In short I am a satisfied customer.
  9. Michael Barclay
    Posted by Trevor on 27/07/2020 22:10:13: That degree of imbalance shouldn’t be a problem - a normal balance charge should sort it out. The main thing to check with new batteries is that the cell internal resistance is in the expected range. Assuming of course that your charger has the facility to measure it. Trevor OK Trevor. Thanks. Mike
  10. Michael Barclay
    Six new batteries arrived today. Five have well matched cells. One is as follows. Cell1. 3.741v Cell2. 3.744v Cell3. 3.707v Return battery or bring up the low cell before charging?
  11. Michael Barclay
    What are you guys who ditched Spektrum using?
  12. Michael Barclay
    Diameter of pipe?
  13. Michael Barclay
    I have loads of stuff from HK EU warehouse. Cheaper postage than from UK and always arrived within 7 working days.
  14. Michael Barclay
    I must be thick as a post for entering this. Never won anything in my life.
  15. Michael Barclay
    Posted by Jeffrey Cottrell 2 on 06/07/2020 18:40:23: Hi Guys Anyone know where I can get some 0.4mm dia spring steel wire in this country. E-bay lists loads, but the all come from China, with all its attendant delays. Really like to have it before the turn of the millenium Cheers Jeff It's listed on AMAZON UK.
  16. Michael Barclay
    Posted by David Davis on 04/07/2020 09:19:11: Posted by Michael Barclay on 04/07/2020 08:28:42: Posted by brokenenglish on 03/07/2020 19:27:45: For the last 8 years, I've been using Spektrum Tx with Orange receivers from HK Europe. Many, many flying hours and I've never had any problem whatsoever. I can second that. I have half a dozen Orange R620x receivers with good range and no problems. Have seen crashes at the club with members flying Spectrum receivers blaming loss of signal. We can only speak from our own experiences. I lost signal while using Orange receivers resulting in the loss of my SLEC Fun Fly and a Seagull Boomerang ARTF trainer. From memory the Orange receiver had only one antenna. Perhps the had something to do with it. In the case of the Fun Fly I had witnesses observe the engine cutting out and then my total lack of control as the model crashed to the ground. That said, both models had had several previous flights without incident. In the third case I had taken a Spektrum receiver out of my ancient and much-repaired Junior 60 and replaced it with an Orange receiver. I had arranged to hand over the model to a novice pilot that same day. We had an apparent glitch on the first flight and on the second all signal was lost and we watched the model glide free flight into a wheat field. Despite it being covered overall in orange Solartex we could not find it. I expect I'll get it back once it's been through the front end of a combine harvester! Perhaps after over thirty years of ownership it objected to being given to a new owner! I am happy with the performance of my AR410s and given the very reasonable price can see no reason to use anything else. It would be interesting to know which Orange rx you were using. I think some people had trouble with the 610 but the 620x has a very good reputation. Nice thing about Hobby King is you can view hundreds of reviews and if something is unreliable you will soon find out.
  17. Michael Barclay
    Posted by brokenenglish on 03/07/2020 19:27:45: For the last 8 years, I've been using Spektrum Tx with Orange receivers from HK Europe. Many, many flying hours and I've never had any problem whatsoever. I can second that. I have half a dozen Orange R620x receivers with good range and no problems. Have seen crashes at the club with members flying Spectrum receivers blaming loss of signal.
  18. Michael Barclay
    Posted by Martin McIntosh on 03/06/2020 11:01:29: I think that customs say a $30 limit which was about £19 but of course we are now having to pay a lot more for imports. I was very annoyed to find that postage is also classed as chargeable and got caught out by using express which pushed my order way over. Thanks for that information Martin. I did not know the exact figure so just kept it below £15 to be on the safe side. Mike.
  19. Michael Barclay
    I find that on small orders of less than £15 inc postage I dont pay customs fees. Over that and you pay on about 50% of parcels.I don't mind paying the small amount of import charges but I think the post office charge of £7 is a bit much.
  20. Michael Barclay
    I said I would report on here after testing the epoxy waterproofing of my esc. and I can say the system I used is an unmitigated success. I first tested the esc underwater for a period of 5 minutes and it worked perfectly. I then ran the motor using an oversize prop to generate heat in the esc and the heat was transferred to the heat sink as normal. The bond between esc and heat sink was unaffected by the heat, and the esc is now installed in the model. My esc is fitted under the battery compartment with the heat sink exposed and is not in a watertight compartment. I should perhaps enlarge on my original description of epoxy encapsulating the esc. in case others wish to try the system. 1.... It is neccessary to level the FETs to ensure good contact with the heat sink as they will not be level as installed. 2....I used West epoxy which is quite thin. Quick curing systems being thicker may not conduct heat to the heat sink from the FETs effectively.   Edited By Michael Barclay on 23/05/2020 13:00:09
  21. Michael Barclay

    Michael Barclay posted a gallery image in Member Albums

  22. Michael Barclay
    Posted by Alan Gorham_ on 17/05/2020 15:27:29: Well it can't be sealed then? I honestly think for a low wing floatplane such as the He5 you will only get water in the electronics if you put it nose first into the water (ie crash). I've been flying waterplanes for over 30 years and have not really found this necessary. I might consider it on high wing model such as a Cub because they will tip over with little provocation. I am not disputing your experience Alan but I am a person who is not afraid to think through a problem and try something new. I spent a lifetime doing this in my work and it is the only way that the human race has made progress. I will test the esc later this week and report on here whether the system is a success or a failure. Mike.
  23. Michael Barclay
    Posted by Alan Gorham_ on 17/05/2020 15:11:17: YMMV but personally potting in epoxy is the last thing I'd have done to an ESC. I'd be concerned about the ability of the MOSFETs to be able to transfer heat to the heatsink. That may well cause you more reliability problems than the possibility of getting water in the ESC. I've only ever seen a couple of people pop their ESCs on water planes after turning the model over on the water and in both cases they kept trying to apply power to the motor with the model submerged. Could be a coincidence but perhaps not? Hello Alan. I made certain there is no epoxy between the heatsink and the MOSFETs. Mike.
  24. Michael Barclay
    Thanks for your replies everyone. In the end I decided to use West System Epoxy which I use for many other things and have tons in stock. I mixed 12 grams into a small pot and warmed slightly to make it very thin. Removed the heat sink then dipped the complete esc into the epoxy. Made certain everthing was saturated then suspended the esc and left to drain. Replaced heat sink after half an hour and now three hours later I have an esc completely water tight. Will test tomorrow under water. Edited By Michael Barclay on 17/05/2020 15:05:14
  25. Michael Barclay

    Michael Barclay posted a gallery image in Member Albums

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