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Silicon rubber Bungee Cord stretches to 6 times its original length and is light weight giving a consistant pull, great for gliders and EDF jets of up to 5kg.
Hello Claudio. A tube UV resistant should have a rubber which would not be degraded by ultraviolet light. Most types of rubber materials were degraded by ultraviolet light and will break in a few months of use. This is a very good product to launch your glider. Good luck and good flights!
I amtrying to understand the Bunjeee...If i use double the length end on end is the launch weight doubled or do the cords need to be side by side for double weight launch and would double add to the speed at takeoff I Hope U can HELP :} ps i always credit :}
It all depends on the weight of the model. My standard bungee from years ago was 30m of 10mm bungee and 100m of 80lb fishing line. With a gentle breeze it would launch models up to 4m wingspan to 140m altitude. I normally release with a bit of tension on the line. I would expect that the 8mm bungee will launch a model up to about 3m wingspan without difficulty. If the model is heavier you might need to double it up. Just remember that if you double it up it will pull harder and may overload
The general rule of thumb is pulling force 5 times the weight of the aeroplane. If this bungee is good for aeroplane up to 5 kg, it must be good for 25kg pull. I just used for the first time this week and doubt it would give 25kg without breaking. I used about 6kg pull and wouldn't like to try too much more than that. If you need more pull just use more bungee side by side.
I need a bungee launch system for my 90mm viper jet It weights about3.5kg with batteries on board. How many strands of this would I need and low long from the anchor to the plane?
Hello,
I would need some advise: what tension of the bungee from release(zero position) to starting position (in meters or feet) is optimal to start edf jet: take off weight about 1.3 - 2kg. Appreciate any experience.
Have a good weather.
californiasailplanes(dot)com/bungee(dot)html has a how too that may help you, I do a sort of half reef knot and a lot of tape! Similar to these. Can't display the link, so a full stop where (dot) appears!
thanks for that since I posted that question I've found a way that doesn't induced knots just stick a short piece of Dow bigger than the inside diameter of the tubing half way into the two ends you are joining and it makes a strong joint without shortening the length.
He comprado este artÃculo para sacr veleros medios en la ladera cuando el viento es muy flojo. Cumple bien. Si quieres hacer una goma en condiciones pide tres y las unes a 100m de cable.
Very high quality. Searched high and low in my country for surgical tubing and the cost was easily 10x as much. Buy it, you won't be dissapointed! Launch my Gentle Lady and ArtHobby 1.5M Hush with ease! Or buy two and double up for heavier birds. Its that cheap.
I tried my freinds' 8mm blue bungy: x3 lengths rubber with 100 metres of nylon line as per usual. This rubber is great for launching my 3 metre Bubble Dancer 38oz RES glider to 400 ft plus. Stretch back a total of 160 metres ( 330 ft and launch into a gentle breeze and you can "kite" the glider up very gentle and high.
In a stronger breeze, 8-10 mph you can kite the model up and hold it in a stationary position indefinately whilst you wait for a thermal if need be.
I have had a yellow surgical
ok guys i went to home depot and got two 1/4inch hosebarbs and two 3/6 x 3 i bolts i slid the barbs over the bolts and soidered them together with a porpane torch then slid the bunge over half way aroung the barb and zip tyed the bungee on both sides of the barbs to hold the bungee from slipping back off then used a keyring to attach a string and another keyring to use on my launchpad it clean looking and looks professinal built the hole think cost under ten bucks including the bungee cord and the pvc launchpad didnt cost much.. under ten bucks so for less than twenty bucks its a killer must have deal
Cool man, just don't use it like I saw someone do on a video. He pulled the plane back on the tail, further and further... Then, the tail broke off, the plane got launched with about 40mp/h, made a nice bow and smashed into the ground. The only thing left was the tail. Don't use your launcher like that, or your plane story will get a tail. Get it? Tail! Hahahahaha!
any more i dont even use the launchpad i drive in the two stakes and hook the one end of the bungee over the longest spike and put the launch pedal made of a 12 inch 1x3 piece of pine and a 4 inch long piece of 1" pvc pipe screwed to the middle of the wood to make it a rocker with a hole drilled in the end to go over the spike then the bungee keyring goes over that i hook the plane in the keyring at the end of the bungee with about 24 inches of nylon twine to the second keyring and of course im launching off of grass but it works perfect and you dont need to haul the launchpad around that takes up more space that two planes you could be flying insted************-PEACEOUT ********-WILDTHAWN**********
I received mine quickly and used this 8mm silicon rubber tubing to make a hi-start to launch my lightweight, two-meter sailplanes. It's attached to a 300 foot length of nylon twine with a ring on the end. The other end of the tubing also has a ring attached and is staked into the ground with a 16 inch spike. You install a wire hook on the bottom of the plane, an inch or so forward from the center of gravity and attach the ring at the end of the twine. Pull the plane backwards about 75 paces
sebastian if you have it sent airmail cheap deliver they take there sweet time if you order ems shipping it goes out the next day in most cases.. thats so you will use the more e3xpensive shipping so they get more of your money
i would really like a ETA on that product i have been waiting for almost 4 month now please if it doesn't come in stock again just tell us and we are looking for someting else but i am sick and tired of waiting!!!!!!!!!!!
Really good rubber, I bought 3 and put it together, added a 60 mts nylon cord and launched a Spirit Elite of 1.2 kg over 120 mts height, really good. Hobbyking a good idea is to have this rubber in 30 mts, and it would good that you have parachute for sell.
Excellent product, I now own both sizes of the bungees, they work great with the heavy one first, then the light one, then 50m of nylon. I have simply tied it on to a carabiner clip which I use as a towing hook. Great system pulls my 2m Spirit at least 80 metres in sky with a good breeze
Fantastic stuff ! it stinks, so I'm pretty sure it's latex based, not silicon, but for my diy wing (approx 900mm wingspan, 4 x 2300mA MiMh), I fold it double to 5 meters, and then walk it out to almost 30 meters. I let the plane go, and give it a fraction of up just before the stake... WOW ! shoots up, I can get in multiple rolls, and a couple of loops.
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