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How to launch a large plane by myself

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Happy Days:
Dear Sirs,

I have a problem.  How can I launch a 4mtr plane by myself?

I’m thinking that to try to launch the above alone would require me to be holding the model with both hands at around head height.

I’ve tried this before with 2mtr and smaller models and I’ve found that what tends to happen is that as I swing my body to launch the model, my Tx, which is only held on a single strap necklace, tends to swing about so that as I bring my hands down from launching the plane, the Tx controls are not necessarily in the correct place. So I have to a) Take my eyes off the model and look down at the Tx. b) Re-orient the Tx to a usable position.
This only takes a couple of seconds but in that time the plane has either crashed, or is in a very bad attitude which often resulted in a crash a moment later.

I’ve since taught myself to launch such sized planes with just my left hand, keeping my right hand on the Tx, but I don’t think I’ll be able to do this with a 4mtr wingspan.

So………………..I was thinking of using a bungee. But here comes the question; What size diameter and length should I use?

Yours desperately,

Keith.

lothar4862:
Well a bungee....

Tell me, what's the weight of Your bird? I have so called "scale bungee" 7,35m lenght with a 4m rope.

http://www.emc-vega.de/epages/62405086.sf/de_DE/?ObjectPath=/Shops/62405086/Products/87

What kind of fuselage has Your glider? If it's not the strongest one, I would prefer this one:

http://www.emc-vega.de/epages/62405086.sf/de_DE/?ObjectPath=/Shops/62405086/Products/85

This should be enaugh for a goo start.

But look at Joe, I believe, he starts 4m planes alone too!?!

If there is enaugh lift, it shouldn't be a problem to hold it in one hand while starting. I've seen this very often.

Regards

Lothar

Happy Days:
Hi Lothar, I sent you a pm, (Personal Message) via this forum a few days ago. I didn’t get a reply so I assumed you were away, or unwell.

This is exactly the information I need. Thank you very much. :clap:

I probably will hand launch the plane myself eventually, after I’ve gained some experience flying these larger models.

Thanks again for your information. :D

Keith

lothar4862:
Hmmmm...

I am sorry, but I didn't get this PM. And I know it worked some weeks ago with another guy over here.

Keith,

if You need some help with the german language on the page of emc-vega, let me know. I am not sponsored by them, but their products are wel proven.

Lothar

Happy Days:
Thanks for your offer Lothar. :D

I think I’ve managed to gather enough information.

You see I don’t want to launch the plane up into the air, so-to-speak. I just want the bungee to push, (thrust) the plane out into the lift.  

My plan is to  pull the plane back against the strength of the bungee. Then, holding the plane with one hand, and having my other hand on the Tx, release the plane and immediately put both hands on the Tx.

The potential problem exists in the question of whether I will be able to hold the plane with just one hand against the strength of the bungee which has sufficient energy in it to launch the plane! :?:  (It is the element of risk that makes life exciting, isn’t it? 8) )

What I am going to do is buy some bungee from Ebay.

 After looking at the web site you‘ve told me about, :wink:  I think I’ll need about 15meters of 8mm diameter bungee. It should cost no more than €20. :)


They say that the world loves a ‘tryer‘.  My wife will tell you that I’m very "trying!"

K.

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