Bungee for a West Wings Swallow Glider.
|Ron Harrison||08/04/2018 13:59:57|
139 forum posts
I have been given a West Wings Swallow Semi-Scale Glider Kit.
My problem is that I have no experience of Bungee Launching!
Anyone able to help as to what components I need, as the Aircraft is very light?
Edited By Ron Harrison on 08/04/2018 14:00:26
4063 forum posts
Ron, it's a very small model for thermal flying, you could make up a light bungee but don't expect to get a very high launch or average flight duration of more than 2 or 3 minutes.
Have you considered using the Swallow as a light wind slope soarer ? It should be fine for that & more rewarding than flying from a bungee.
|Ron Harrison||09/04/2018 14:14:13|
139 forum posts
No Slopes within 20 miles of where I live. Appreciate that Duration will be short lived. Better than nothing though.
Did Bungee a Cambria Models Slingsby T49 b Capstan a few years ago now but, the Site I used is no longer available.
Will give it a go in due course.
|Mike Etheridge 1||09/04/2018 17:29:20|
|1478 forum posts|
My bungee I have not used for about 7 or 8 years. I only have one glider with a bungee hook, an old Micro Mold Sprite I bought from new with the bungee in the 1970's. The bungee is made up with a hook and parachute at one end attached to strong fishing line which extends to a length of rubber flex and possibly more fishing line after the rubber flex ? I used to anchor the bungee with a very strong fishing rod rest which was hammered into the ground. Once extended the bungee had a tremendous pull, and my Nephew and I found out the last time we used it that on the plane no up elevator was necessary just rudder as the ABS fuselage fractured in front of the all moving tail- plane which then separated from the fuselage. I would suggest that lightweight planes may not be suitable for bungee launching in view of my experience. The Sprite still exists with Futaba M Series radio and dihedral that increases with every flight on the foam / hardwood wings !
|Jonathan M||09/04/2018 22:05:18|
604 forum posts
|You could try a hand-tow perhaps - a bit like running up a kite in light winds... better still to get a chum/spouse/kid to do the running!|
Whereabouts in the country are you Ron? A small lightweight glider can be made to micro-slope off thw smallest mound or dune.
|Ady Hayward||09/04/2018 23:12:24|
734 forum posts
All the above posts are valid and can be done as described. I have had god results just using the stretch in 30lb monofilament fishing line. With a light breeze 10 paces or more of stretch over 150metres will give a good "Bungee" start. Just be mindful of the strain imparted on the tow hook structure though. Try with a couple of kg pull (Testing with some fishing spring scales) on the 1st attempts.
Edited By Ady Hayward on 09/04/2018 23:12:51
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