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John Bisset

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  1. John Bisset
    What Steve describes is how I recall the full size Stampe behaved too. Serious crosswinds were 'challenging' = best avoided and even in light crosswinds sometimes accepting a gentle, slow, groundloop was the safe option when taxying. On hard surfaces sometimes that wee burst of power to get rudder authority could be a headache causing speed build up, and real Stampes mostly have light tail weight so using the brakes is best avoided. Lots of fun - thinking ahead mattered. John B
  2. John Bisset

    John Bisset posted a gallery image in Member Albums

  3. John Bisset

    John Bisset posted a gallery image in Member Albums

  4. John Bisset

    John Bisset posted a gallery image in Member Albums

  5. John Bisset

    John Bisset posted a gallery image in Member Albums

  6. John Bisset

    John Bisset posted a gallery image in Member Albums

  7. John Bisset
    It is based at Insch now, previously at Longside. John B
  8. John Bisset
    I shall ask the owner this evening by email. I suspect the paints may well be to the old Piper standard, it certainly looked like that to me - shades that look very similar to the scheme on the Super Cub I used to fly. G-APFV was G-MOLY at one time. John, the current owner returned her to the 'FV marks I believe because his uncle had owned her under those marks. Cheers, John B.
  9. John Bisset
    This is fascinating stuff Danny, terrific. (I have only just found this thread, so am looking back through some intriguing pieces of work and interesting techniques. Wow! The aircraft pictured as your header on this topic belongs to a friend of mine and is based nearby, so if you plan to use that colour scheme let me know. Photos could be arranged. I see you got a good source of Apache photos a while back.
  10. John Bisset
    Thanks Geoff - an idea I may well use. That ease of replacement can be important.   Edited By John Bisset on 30/06/2020 20:39:24
  11. John Bisset
    Thanks jd8 and Dave C - I have some fairly large size O-rings,but shall investigate that link. Likely to work better than my musings on joining some suitably sized tubing together - though carefully cut neoprene is a thought Dave. Geoff s - that sounds like a lower drag option than mine!
  12. John Bisset
    Interesting comments. I agree with kc - testing any new glue, or any old 'stock' that you may be in doubt over is well worthwhile. Still a requirement for full size glue work on aeroplanes, so why not here too, with a wee scrap piece?
  13. John Bisset
    Good grief I can't believe it is three months since this was posted. I did get distracted by 'domestic issues' as part of this virus problem , but I hadn't realised it was that long. Sorry about the long delay! Thank you for the video link barryt - I now have a part built fuselage which aims to have a similar system. I rather like the idea of an interchangeable 'power pod' for different machines, though I suspect the theory of that sounds better than the practice will be. On your elevator cables question, I suspect this is far too late now, but have you thought of simply running the cables through small diameter cooper tubing acting as a sleeve into the fuselage, each side. The copper tube bent in a gentle S shape to bring the control wires into a position ~ parallel to lead to the servo? I did something like that in a smaller model years ago. It worked well, since the movement is not great and I saw little wear in a couple of years (light) flying. I used Laystrate control line wires and 1/16" copper tube as I recall. I had debated about putting the smallest size of heat shrink tubing over the wires at the fuselage entry as a wear reducer, but didn't bother in the end. Not sure if thta is of any help - I may have misunderstood your drawing. Meantime the other problem I have been debating is wheels, though I have some time on that yet. Currently no commercial wheels of the correct size seem to be available in the UK, and I came back onto the forums just hours too late to spot the Williams Brothers wheels that were offered a day or two ago. Rats! I shall put out a 'wanted' add soon. So - does anyone have any suggestions on building my own? I think I may manage to cast some tyres eventually - I have done some silicone rubber casting before and I suspect the softer rubbers used for that may be about right. Not sure though... John B
  14. John Bisset
    There were some full size machines where the washout was effectively provided by rigging the aileron appropriately. I have a vague memory that there was some long span aircraft on which the aileron neutral positions could be adjusted in flight for optimum cruise efficiency.
  15. John Bisset
    Thanks all. I thought that was the 'number' required. It's just so darn long, to no purpose. Edited By John Bisset on 27/04/2020 21:55:36
  16. John Bisset
    This is a query which shows poor my memory is and how slowly things get done in remoter rural areas (or how little attention we pay to central 'authority'!) I'm sure some one her must have already covered this, but my searches didn't find those. Having refurbished some models and completed a couple of half built projects, I was thinking about adding my CAA Operator number to them. For the first time, I had a proper look at the email they sent me. Ignoring the obvious and unnecessary 'OP-' part, the reference is seven digits long, using both letters and numbers. Is that what we are supposed to put on our machines? If my arithmetic is right, that reference allows between 4.6x1010 to 6.4x1010 unique numbers, depending on whether I & O are included or not. That is a huge number, given that the population of the UK is around 6.0x107 and around 2.0x104 at most of those fly radio control models. Why so large? (Why not use our BMFA numbers - they are shorter and easier to get right!) So - is that the number I should use? Chances of anyone ever writing it down correctly, even if I don't spoonerise it, are slim! Shall take copy of the email with all the rest of the paperwork when I fly, just in case... John B
  17. John Bisset
    I understand it is part of the UAV development work Steve, thanks. I simply feel it is an overly complex solution to a problem already easily solved. That of course will appeal to those 'in charge' many of whom seem to prefer complexity to simplicity. (Possibly explains why so many government projects fail, go over budget or don't perform the task adequately.) I note that two safety pilots are required, with runways etc. As said by others, what benefit does this provide? A light aircraft can do this with lower probability of failure. Sending a drone for the mainland to the Isle of Wight is a relatively simple & easy task, especially if using airfields. If they view that as difficult enough to need a safety pilot at each end, what chance this can ever be of use elsewhere around the country at large? I'm not sure this provides much learning for later use. I live in a remote part of this country, where quite frequently even full size aircraft fully equipped with identification systems are not tracked by any systems below 5 to 6000 feet. What chance of tracking drones? Delivery by drones will be very hit & miss for a very long time.. As it is deliveries by road, even using GPS mapping etc, still often go astray. Several time per month we are asked for help by deliverers. I am not averse to the use of new technology; a large part of my career has involved bringing new technology into use and tweaking it to make it work. Often that meant we had to take a good hard look at what we thought we knew about the world, stuff we took for granted. "It ain't what you don't know that gets you into trouble. It's what you know for sure just ain't so." - Mark Twain. I suspect that too many of those who are supporting this at high level have the faintest idea of the real challenges involved in making this work in a practical sense. Are they still being fascinated by the 'Ooh - shiny' bit ? Maybe I am being too sceptical.
  18. John Bisset
    As Cuban8 says, a normal aircraft could do this more simply. As Barrie L says - a lot of money being spent, for little benefit The Civil Air Patrol were being mentioned as one organisation which could do deliveries of urgent hospital equipment and medical samples at little cost. They are volunteers, are organised and ready., They have, I believe, already carried out one such urgent task. This is playing to the gallery.
  19. John Bisset
    Like you, barryt, I am dithering about the front end. Don Fry's hinged cowl area sounds interesting - I haven't heard of that before. Maybe a scrap trial build is needed!
  20. John Bisset
    According to some psychologists people panic buy toilet roll because it comes in large packages and hence easily helps satisfy the urge to have a stock of stuff. Hmm !
  21. John Bisset
    Hi barryt - glad to find someone else going electric. I have a similar problem; our airfield has permission for electric R/C only, which seems a tad strange given that R/C aeroplanes are generally quieter than fullsize ! Nice to see what the tail sections look like when covered. I shall probably use translucent covering I agree, Don Fry, closed loop is light and looks good. I did my both Wot 4s that way for elevator and rudder and also rudder on a kit Jungmeister (the elevators on that I operated by internally rigged pushrod, since that mimicked the fullsize machine) I use 'Laystrate' lightweight 3 strand control line cablle for my closed loop systems, which I find excellent. One reel should last a lifetime - I only ever used two lengths for C/L, many many years ago and then when someone passed on his old modelling gear I fell heir to another reel !
  22. John Bisset
    This is a most interesting & timely thread since, like Ashley, I am building a Puppeteer which I bought probably in the mid to late 80s. I restarted work on it about three weeks ago after several years gap due to house moves etc. So far I've built one set of wings and the tail, so the fuselage is next. Not sure whether it is a Mk1 or Mk 2 kit - how do you tell? The instructions, written by Dudley Pattinson, do mention some 'minor alterations' in the kit, so possibly Mk2. I am intending to fit an electric motor, so was wondering about weight & balance and possibly extending the nose. Any comments/thoughts on this? Thanks i12fly and J D 8 - the rigging modifications you suggest sound useful for storage, though I hope to be able to leave the machine at my local airfield much of the time. Regards, John B
  23. John Bisset
    For all but my few fancier models, I shall just write the number on - 'permanent marker' comes off with simple solvents. For the fancy ones I shall put the number on a sticky label, one inside and one outside (under the tail) That way I am covered if the outer one falls off. The intent is to make ident of legitimate operation easy, not to be picky about little details - police are not going to nit pick unless a modeller is being unduly difficult with them. If you do want to play hardball, make sure you have every base covered first - and remember, there is always another law the police can find if you really push them! Edited By John Bisset on 22/02/2020 16:49:27 Edited By John Bisset on 22/02/2020 16:49:45
  24. John Bisset

    BMFA

    John Bisset replied to John Tee's topic in Chit-chat

    I'd agree - well done BMFA for all this year's impressive & effective wrangling on our behalf ! Even though I did struggle today to figure out how to upload my 'Registration Competency Document to my BMFA Member's records. Finally got there, thanks to my wife asking the right sort of questions - - evidently I don't think in the same way that web page designers do...
  25. John Bisset
    Posted by Don Fry on 21/12/2019 13:17:48: Posted by Colin Bernard on 08/12/2019 17:40:22: Guess it depends on the label and surface - I've just had the devil's own job getting the labels off old jam jars ready for the next batch! Steel wool, COLD water. I usually soak labelled jamjars in warm water, then lightly scrape off the top surface. A little white spirit on a swab or a cloth takes off all the rest easily.
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