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Martin Dance 1

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Everything posted by Martin Dance 1

  1. Can I deduce that there is a space between the plasterboard and the lintel? If so the simplest answer would be to use a plasterboard fixing. Lots available from all the well known DIY chains. Blinds are quite light so you don't need to drill into the lintel.
  2. A fellow club member had one for many years, probably built from the original plan. I recall the model had som dihedral, possibly 2-3 degrees.
  3. Well the Taplin Twin went for £483. A motor that was built some time in the 1960's has never run and will almost certainly never be run. It will likely just become an ornament. I have several MDS motors which can be used as ornaments for much less than £483 Now where's that thread about when does a model become too expensive?
  4. I would add to Martin's description start the manoeuvre whilst flying downwind. The reason is that wind distorts the manoeuvre. the down going half then gets pushed fairly round whilst the second half is also helped by the wind and will stay pretty much where you would like it to be. Do it the other way and you get an elongated egg shaped manoeuvre with a strong possibility of the aircraft twisting or flicking out on the upward half.
  5. Hi has anyone logged into this new portal yet? I received two emails about it. the first, last Friday was clearly addressed to a club officer/ committee member. the second, today is subtly different and is aimed I think at ordinary BMFA members. The first makes it clear that membership secretaries should find it easier to renew members using this portal. the second email would seem to suggest that everyone will renew on line. Or am I being thick? (don't answer that I know the answer) Edited By Biggles' Elder Brother - Moderator on 08/10/2018 15:28:11
  6. Surely there is no need for increased Police powers My guess is at the moment if a police officer asked you to land your drone/UAV and you refused without a clear reason. You will be arrested for obstructing an officer in the execution of his duties and duly dealt with. As far as the validity of the achievement scheme is concerned in its present form its difficult to see what the CAA could add other than a compulsory medical and psychological assessment with say an annual review, that shouldn't more than quadruple your BMFA sub
  7. The 27Mhz band was and AFAIK still an ISM (industrial scientific and medical band) and we shared it with others albeit all users were low powered. Initially CB radio was imported from the USA where 27Mhz was a citizens radio band and could be used for a variety of applications such as radio control. At the time transmitting speech on 27Mhz ISM in the UK was illegal. However the tide of imports and subsequent use proved unstoppable simply because the purchase and ownership of such equipment is not illegal, but using it is! The powers that be had no real way to stop it. so, initially a frequency allocation away from the frequencies was permitted for CB use. However the equipment for this band was more expensive than the imported USA spec equipment so saw little use. Eventually the 35Mhz band was allocated once the military abandoned its use, but there was still a problem because in the UK at the time the TV IF frequency was or close to 35Mhz! So we could interfere with TV at short range. BTW 2.4Ghz is also an ISM band!
  8. I completed the survey last night. My overall conclusion is that whoever the author of this survey was he/she is either a very junior or very naive member of the DofT. Clearly the author(s) have very little knowledge of the operation of conventional fixed wing or helicopters or indeed of multi rotors or the technology that supports it. It seems that for many of the proposed 'solutions' to the drone 'problem' the proposals are a very large and unwieldy sledge hammer to crack at best a miniscule or non existent nut. It also seems that the powers that be already have at their disposal enough law to achieve what this consultation is alluding to. The section on detection and effecting drones looks like science fiction. If we are to assume that future legislation is to enable the powers that be to counter the potential criminal use of multi rotors, the type of system that appears to be being proposed is unlikely to work or it could seriously backfire. Scenario, I am a terrorist hell bent on dropping some IED on a location that is bound to get maximum publicity. I develop and programme my multi copter to do one of two things if it encounters a jamming signal. 1. to immediately detonate and if this is in an urban area collateral damage is virtually assured even if the planned target is missed. 2. On detection of an interfering signal the device reverts to its internal programming and heads off to some pre-planned landing spot to be saved for another day. The final art of this survey about growth in the use of multi rotors also seem over optimistic. If the exoectation is that many drones will be used for routine delivery tasks for example. the chances are that most will fly along a relatively narrow corridor relatively close to built up areas. How long will it be before protest groups are formed to lobby against such events. Not long when you consider that almost all infrastructure projects meet opposition. The bit on FINs seems somewhat unnecessary. If there is a requirement to file in effect a flight plan, if only moments prior to take off, will there be a need ti withdraw the flight plan if the flight doesn't happen?
  9. I suspect the sheep can see their reflections better in the black car, sheep are a flock animal so are attracted to more of their own kind.
  10. Going back a long, early 60's I recal that there was a Skoda Octavia that was based on the Renault Dauphine of the time. the Skoda was the better car, if only because it had less of a tendency to roll if cornered at all enthusiastically!
  11. I suspect there is one factor that is material in causing LMS's to close is the passage of time. Many model shops opened in the boom years of the late 60's and early 70's. Most were sole traders. Guys who at the prime of life felt they wanted to do something different from the 'day job'. Most were keen and often successful modellers and in due course ran successful model shops. few employed any significant staff, the wife, a keen youngster on Saturdays. These people have now come to the end of their working lives. The business is not big enough to employ a manager to continue the business. It's likely that sons and daughters aren't interested, the business hasn't made enough profit to give them a decent living anyway in recent years. and there's the dreaded internet and Chinese competition. The only solution is to close the business down, sad though it is.
  12. My Tomboy is covered in Litespan, and fuel proofed, can't remember what I used. Its powered with an Irvine Mills 75, more than adequate. It only has the Mills integral tank and flying carefully gets to around 500'. If I built it again I would only put an elevator on one side, after all it's basically a trimming control with a bit extra to slow the touchdown.
  13. Yes, I picked up an original copy at my LMS about 3 years ago. Built the model last year. I had it photo copied. PM me your address, you can have the copy for the cost of postage.
  14. When I built Peter's Ballerina I decided to have the grain on the formers running vertically.My reasoning being that when cutting notches for stringers the bits either side of a notch were less likely to break off if the grain is vertical rather than horizontal. I suspect the ability of the former to resist compression loads in this orientation may well be improved by simply using a harder grade of balsa.
  15. My first Tx was a Macgregor s/c the hammer finished grey one with an RCM&E Cotswold Rx, home built. Next came the RCM&E Galloping ghost TX and RCM&E superhet RX again home built, I was an impecunious school boy! RCM&E are doing well here, next was their original proportional system. Followed by a once again home built Harry Brooks 'Sprengbrook' system, worked really well. Next Skyleader get a look in with first a Clubman, followed by an SLX and finally a TSX system these were the first radiois that I hadn't built myself. I then changed to JR with their original system, aluminium extruded case and open gimble sticks. wonderfully reliable. 35mhz arrived and i bought a Sprengbrook system made by Brand Electric in Germany. My next Jr set was the Apex computer radio, able to afford it as the result of some scrote stealing all of the previous Slyleader and JR tx's from my shed. I had always hankered after a set of Kraft radio and eventually bought a 5 channel Sport outfit. We 'enjoyed' mixed fortunes with this set. My first 'toe in the water' with 2.4 ghz was to fit an FrSky module to my Apex Tx. improved latency and much better battery life from the Tx. Finally Spekrum DX8 followed by a DX6.
  16. I'm not sure that I would worry too much about HS2 if western region electrification is anything to go by. So far the new electric trains can make it as far as Didcot from Paddington, nothing going west towards Cornwall as yet, there are a few poles up as far as Newbury but no wires. The project is years late and very over budget. Many of the new electric trains are run using diesel engines which were retrofitted to them! Personally I think HS2 is a good idea IF they run 180 mph freight trains on the line and passenger fares are the same as the existing standard fares to the north. It just gone dark here as a flock of pigs pass overhead
  17. For the rest, mainly electric. On the other hand a lot of my predictions are either completely wrong or in detail. At present I am convinced that a Manchester Club will win the Premier League. Erfolg, You sound like my sort of gambler, each way bet on the boat race!!!
  18. I think you will find that the main difference between 'then' and 'now' is how it is sourced. Certainly in the 50's and 60's balsa trees were found in the rain forests of places like Ecuador by local native labour. Trees were felled and hauled to a suitable place for shipment. There was little idea just how old the trees were. A balsa tree reaches its commercial peak at about 7 years. Today balsa is plantation grown and therefore it is possible to harvest the crop at the optimum moment. Therefore there is a greater supply of prime timber today than in earlier times.
  19. The old flying toward yourself problem is as old as multi channel radio control. Ideally what we should attempt to do as an old flying buddy of mine said is to place yourself in the cockpit so that you are going in the same direction as the model., Very difficult to do but it comes with practice and experience and more practice. The 'prop up the low wing' trick is a way of remembering what to do to remove the banked attitude of a model which is coming toward you. The snag is the explanation is tricky to explain because it uses left and right in confusing ways. So to start with forget about the actual left and right (port and starboard) of the actual model and concentrate on what you are seeing. So, model coming toward you the model is banked to your viewing position to the left, (left wing low from your point of view). The model is actually banked to the right, so the corrective control input is left aileron. How ever from your point of view you are moving the stick to the left, thus propping up the the low wing or putting the stick under the low wing. easier to remember and do when you are relatively new to this flying game.
  20. A friend has one at the painting stage. The simple answer is quite a lot. His is covered in Ceconite and doped. Ceconite is used on full size so is sold by the acre! He bought dope by the gallon.
  21. Just started to clear the decks after a spell of decorating,oh and of course Christmas. I've chosen the CAP20L, 1. because I like Peter Millar's designs (Ballerina RF4 , plus one whose name escapes.) 2. I bought the short kit and canopy a couple of years back. So it will make a dent in my kit cache. 3. I like CAP aircraft. I shall start on or after 12th night.
  22. I haven't listened? to the video, but the lack of progressive response to the needle valve could be to do with its position. Does the spray bar have two holes through it each diametrically opposite to the other? If yes then check that the holes are across the airflow, if you look down the venturi are you seeing the holes at a tangent? Adjust the spray bar to achieve this. The needle might be bent slightly if this were the case I would expect a lean/rich cycle as you rotate the needle. Best running setting is minimum compression and minimum fuel for the highest achievable rpm. Progressive twiddling of compression and needle will find that spot. Remember reducing compression may sound counter intuitive but that's how it works. Good luck.
  23. An alternative to a new and heavier model might well be to look at the achievement scheme Basic Proficiency Certificate (BPC) designed for the situation you are describing. The test is the same as the 'A; test but allows for sub 1Kg models, you'll find details on the BMFA Achievement Scheme website. The only downside is your club's attitude to it with regard to flying unsupervised.
  24. I agree Peter the present bid is insane. I wonder, though if when the auction ends the winning bidder will realise exactly what he/she has done and not pay up? It's obviously silly season on Ebay. A couple of days ago an ED single channel TX, not a Black Prince but one with a red case sold for £412, You got a red covered case containing a valve or two, no doubt a coil and a capacitor and some battery leads. No antenna, no keying button etc. Madness.
  25. Surely such an engine deserves a classic pylon racer air frame to haul around for example a Manneater?
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