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  1. Today
  2. Hi Marc and all, I'm hoping that I might be able to help at least a few of you guys who are just starting to use a bungee, by describing a few of the techniques that can be employed to make "marginal" power bungee systems work better in practice Firstly, wind, any wind, seriously improves the power available to be used on any launch. If you start using a bungee on a dead calm day you'll see this immediately Secondly, you'll find that, the more ooomph you can get into the first few feet of the launch, the fewer problems will appear as you start to really get into the climb Thirdly, the glider should be launched at roughly 45 degrees nose up, no more, and certainly no less, and you MUST launch squarely into wind ALWAYS.....every time Don't stand , ready to launch the end of the line, any more time than you absolutely have to.......holding the bungee at full stretch really kills it over time You can improve any launch by weaving on the line, but only after you are settled into the launch, at about a quarter of the way up, weaving stretches the line and improves the pull, especially if you feed some up elevator at the same time, but doesn't increase the total energy of the pull........that's simple Physics for you.......this is also known as "kiting" Gauging the moment of release at the top of the launch is important too, try to get off just before the model does it for you...... Towhook position is also critical and an ordinary cup hook is often better than the releasable type because it can be "tuned" by moving it forward or back depending on the conditions.....just drill holes in front and behind the starting position and move the cup hook either way as necessary Then there's CG position, the hook position must enable the glider to "cock" on the launch settling the glider's angle of climb to maximum effect I won't go into caring for the bungee rubber or repairing line breaks just here but, if anyone is in any doubt as to look after their bungee rubber, please post here and I'll try to answer what you want to know.....oh, and hand winches and power winches either...... they're quite complicated to get working at 100%....... Smooth, high launches and long flights chaps Regards Pete BARCS1702
  3. Hi, I think we may have met at wormwood Scrubs last weekend.. I was flying my supra off the high start. (My favourite way to fly bar slope soaring) I got my 2 mtr class bungee from Seta tek in Germany as I have built his models and he sends a complete ready to use high start. I purchased my 3mtr and above high start from the states, super nice quality components and you can specify exactly your requirements. see links below. http://www.seta-tech.de/ https://www.aerofoam.com/complete-3m-1.html best, Leo.
  4. Yesterday
  5. I've entered and paid. 148987
  6. Watch out peeps he’s got a new v3, a 70m launch and he’s coming to get you. That is if he doesn’t crash!
  7. thechalster

    Help CX5. Tailplane mount

    Any one got a CX5. tailplane pylon. Just putting a CX5 together for someone and the mount has gone missing.
  8. I bought the Allround 150 Plus, this should launch many different weights and wingspans, from my Xplorer to AVA, more weight more stretch..............
  9. If you don’t want to outlay too much this is a U.K. supplier that sells 6mm and 8mm OD Silicon bungee in 10 mtr lengths that should get you going https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F232032593480
  10. Some images from todays event.
  11. Just started back flying after a fair layoff last week at Wormwood Scrubs London satinet: https://www.bing.com/maps?q=wormwood+scrubs&FORM=HDRSC4 Thanks for the advice/experience with EMC Nigel. The launch system has to be 100% sound for sure. Do you mind me asking what type of model sizes you launch with and what launch package did you get? Thank you
  12. I bit the bullet and bought a complete system from EMC Vega a couple of weeks ago, it was on my doorstep less than three days later, outstanding service and great quality products. It will last for years if looked after carefully, you will not go wrong buying from them, I was pointed in theta direction by the guys on this forum.
  13. There aren't that many flying bungee as there used to be for obvious reasons. Where do you fly?
  14. Bbdave

    Radio help

    Right I set everything up on the bench using spare servos all worked ok then one by one added the model servos the only thing now not working is the esc no beeps on switch on but it still feeds the rx fine it is an overlander xp 20a I think I will put it back to factory default then re program it if no joy I'll pick a new one up tomorrow and try that. Dave
  15. I've put up and entry list at the top post. Let me know if there's any mistake. DON'T FORGET - ENTRIES CLOSE TOMORROW - SEE TOP POST!
  16. Hi Mike Have entered and paid Bmfa No 076153 Thanks Paul
  17. Thanks for head's up satinet. They got some lovely kits there/pretty high end stuff. Link below if anyone else is interested. https://www.emc-vega.de/en/index
  18. Emc Vega Probably a few winches around these days due to end of f3b and f3j.
  19. Makes sense Paul, thx. Really tight works for me Peter :). Brilliant simple idea, thx m8.
  20. Hey slap, I'm using 2.2.3 also. I could just send you the full contents of my card, I also have the Amber sounds on there which are much smoother on the ears. All it's missing is the 'welcome to open tx' greeting as it annoyed me at every switch on so I deleted that file.
  21. If you are feeling really tight you can save £2.95 (+P&P?). It looks like the aerial wire is undamaged but the plastic pivot of the aerial has broken. If so you can just drill a 1mm hole in from either side of the mounting point and use two very short self tapping screws (about 3mm) to make a new pivot. Take care not to drill into the aerial wire! I did this to a Futaba F8 about 5 years ago and it is still going strong - stronger than the original plastic
  22. I know some of the multicopter community use a higher gain antenna, but I am not sure that is a good idea. With the original specification, you can be confident the signal strengths etc are inside the regulations, and you run less risk of swamping your flying mates. If I was doing mine, I would definitely go for the original equipment
  23. Funny, I was just looking at/going to post same video Paul !. Thanks for your help and advice sir! Since I will be soldering, does anyone have any suggestions for another type of antenna? Or are the standard ones ok?
  24. this is contents of my SD card. Note the sdcard.version file. Suggests your copy did not work. I'm not sure what version you were on before upgrading to latest firmware .......
  25. Good morning I will be after a bungee system for launching 2 to 3 metre gliders in the next week or so. Any advice on what I should be looking for regarding quality/where to buy etc? Thank you Marc PS I was not sure where to post my request, so apologies if this is the wrong place.
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