HobbyKing 6mm Silicon Rubber Bungee Hi-Start Cord

 beezlebub 226 points

yes, easily. however, I would recommend using a length (about 2 times as long as the bungee) of fishing line tied to the end. this will slow it down and give you a lot more altitude, more like someone running with a kite. with a good length of fishing line attached you should be able to get more than 100 feet up.

 Alexey 9 points

 AAFuni 20 points

Do you mean sling shot? That is pretty much what this stuff is for* plane sling shoting. If you meant swingshot like from american gladiator, then I would go with the thicker length and double it over a few times.

 KaosKane 1429 points

if u wrap it many times around a stick then mount it in a frame attached to the ground u have a manganel, catapult, ballista or teubuchet (depending on the size of the stick)HTH

 mostly2fast 13 points

Sucks don´t waste money

 m_ark 47 points

Bungee length depends on model needing lauching. Gliders (use 8mm bungee cord) need more bungee length to get height on launch, jets need less height but more speed (this length folded in half is good for most light jets), and the locations of the launch hooks is different between the two models too. google: bungee hook location rc
Most models need 5x the weight of the model in tension on the bungee.

 Victorvs 952 points

smaal

 Heppy Ket 381 points

I launch a Goldberg Gentle Lady weighing in at 850g, that would be about as much as I'd go, works well, but I would not like to go over a kilo.

 Ferenc 10 points

hello, I launch my ash-26 glider (2,6m and 1,5kg) with 2 6mm silicon rubber (2x10m, not 20m). They work well, but they was a little strong

 Lamborgotti 42 points

the 6mm silicone i capable of max. 1400g modelweight and should not extendet more than 500pcnt of its original length means original lenght 10m x 5 = 50meters maximum. Forget the specs that say 3.0kg, if your model is heavier you should choose the blue 8mm silicon rubber bungee that is capable of 2300g

 Deep Blue Water 17 points

The most simple way is, make a timber or steel rod T shape, around 30" high tied the bungee cord to it and on the other end attached a key ring. On the plane side you need to put in a hook (front oint where normally the nose gear attached) . Ensure you have a flat and level ground. You probably need to pull about 100 feet prior releasing it ( depends on the weight of your plane)

 o1hoegetter 1614 points

SOUNDS LIKE A GOOD WAY TO LOOSE A PLANE

 Moraes 65 points

Thanks you! And a click?

 Ethan 138 points

Yes it also streches up to 6 times so you can load on it heavy things up to about 3kg

 jerry-tom 269 points

It is good, shoot flying wing 1.2 kg, 10m 40 m nylon rubber.

 ppompka 36 points

Now is in stock.

 FoamHeadMike 24 points

scroll down the page there is a re-stock notification feature

 Thomas 11 points

I take 20 meters of this rubber plus 80 meters of cord. (20 80= 100) Then I pull it up to 170- 180 meters. This gives a height of 100 metres to my 400 gramm sailplane ,2 meters wingspan

 Bryan Moose 23 points

In stock now. In future, ask for a stock reminder is the product is on backorder. Check your mails and get in first on hot items.

 andre luis aguiar 1 points

GOOD DAY, I'M NOT GETTING TO MAKE A PURCHASE WITH CREDIT CARD, IF THERE IS ANOTHER FORM OF PAYMENT

 Napstr 686 points

Another quality HobbyKing out of stock product! they tend to screw you with all these as you try and wait it out before placing the order as the restock times are a joke.

 Mudpiggy 11 points

That is exactly how the bungee rubber works. You attach a short length of nylon line (fishing line works well) to a split ring/key ring on one end, and secure this to the bungee cord at the other end. Then securely (this is important for personal safety) attach the other end of the bungee rubber to the ground, using a heavy duty tent peg or similar. Place the split ring over your tow hook, draw the glider back on the line, and release, pointing in the direction of the peg. You may need a little downward elevator as your airspeed increases.

 rcplanes123 12 points

you can look it up on youtube!

 cirrus 5 points

it depends on the weight of the glider* but in principle you have this tube and about 100 meters of line. you hook the glider on and stretch the line with tube to about 150/160 meters. hold the glider a bit with the nose up and let it go. give a little up. as you get more experienced you can more up at the start.
succes Cees

 iskandar taib 5 points

It's not a catapult. The glider should actually go up vertically and gradually level off. Look up "Hi-Start" online. If the glider isn't going up at a high angle, then you're using tubing which is too small.

 BOOF_16 145 points

Im not sure mate i have used mine a lot in the sun and it hasn't showed any signs of it becoming brittle.

 iamzoli 116 points

use all the lenght 10m
you must use 4*weight of the plane. ill suggest you go with the 8mm silicon
for jets it is 1/3 from cg to the front
for gliders is just in front of the plane

 iamzoli 116 points

use all the lenght 10m
you must use 4*weight of the plane. ill suggest you go with the 8mm silicon
for jets it is 1/3 from cg to the front
for gliders is just in front of the plane

 JohnH 310 points

The info I put in my 2 posts, (3 above)may be of some assistance, (as I think you will be lucky to get an reply to your actual question). You will see that it will probably not be suitable, & that is why I was asking re 10mm O.D.

 irish_lord99 188 points

Definitely not strong enough for a 3 KG glider! I've launched a 20 ounce glider with a length of this stuff, and I don't think I'd go any heavier. I'd definitely go with the blue bungee, and maybe double that up!

 neratoblogo 14 points

Hi,

i'm using 6 mm Silicon Rubber Bungee Hi-Start Cord with Multiplex Easyglider (~800 g weight, 1800 cm wingspan). In my opinion, 800-1000 grams is a max limit.

I'm sure it wont be able to pull Your glider high enough. I suggest you to buy HobbyKing 8mm Silicon Rubber Bungee Hi-Start Cord.

 cirrus 5 points

it is too light for a 3 kg glider, you should use the 8 mm tube en lot of force. and you need some wind.
succes Cees

 H-KING_SCOTT 5160 points

When you say 10-12 OD, what is the inner diameter?

 magnusEl 1214 points

Personaly I would like to have 10x6 (or maybe 10x7), I probably going to buy both if you stock them.

 mrblobby 169 points

What is the required force to stretch this tube? For EDF launching you need 4x the model weigth to get it moving fast enough.

 H-KING_SCOTT 5160 points

Hi JohnH, we tested several thicknesses, the issue with 10mm is that its a little heavy. "Surgical" rubber is just silicon rubber and thats what this product here is. The 10mm is about 50% heavier than the 6mm and pulls the glider with alot of force, possibly breaking it. I suggest you test out the 6mm type first. We might stock 8mm if enough people ask for it. But i doubt we're going to go to 10mm, it just seemed to thick and heavy for R/C needs.

 JohnH 310 points

Hi Jason,
Much appreciate your prompt & informative reply.
You will understand my question in that I actually have 8mm O.D. "surgical", & it is not "heavy".I said "surgical", (as that is the term generally used) but as you have mentioned the weight, I have researched & the material is actually "latex", (the honey coloured that I have & also the "black" ones, that have a better resistance to UV).
Incidentally it appears I was wrong as to the use of the terms High Start & Bungee, they are the same but "Hi Start" is the term used in the USA.
I can relate to "silicon" being heavier than "latex", but just to comment that recommendations are:
Light duty 6mm x 3mm ("light weight & delicate to 2m span)
Medium 9mm x 6mm ("gliders from 2m to very light 3m"
Heavy 10mm x 7mm ("for 2m to 3m span gliders")
X Heavy 10mm x 7mm ("FJ3 practice")
Thanks again, JohnH

 Straight Up 743 points

JOHN: Why not buy 2 and use them in parallel? At this price it would be worth a shot.

 irish_lord99 188 points

Also, let it be known that a Tower Hobbies "up-start" only comes with 7.5 meters of tubing and that's capable of launching a 100" glider within a 300 foot area. This is almost 1/10th the price, of course you'll have to supply some twine and a parachute and a few metal rings* but it'll still be a lot cheaper than any commercially available hi-start.

 magnusEl 1214 points

No. It comes in separate 10 meters lengths.