catapult plans?
 

hi,

I would like to build a bungee launcher from PVC pipes for a Vasa F-5. Am looking for a plan/dimensions & some details on home-made foot operated release mech, rubber type/ source etc..

all help is appreciated,
thanx,V.

RE: catapult plans?
 

RC Groups has had some traffic on the subject and some have posted planes and pictures. I'll see if I can find them again. It has been awhile. That is RCGroups.com

RE: catapult plans?
 

I posted some details for a bungee launcher on my RCGroups Blog here [link=http://www.rcgroups.com/forums/member.php?u=142506]CaseySP's Blog[/link]

I only use it on prop foamies - from 450g Alfa warbirds to an 800g GWS FW190, but the basic design could be scaled to whatever your purposes require. The key change would be to lengthen the shock cord for heavier models. I got my shock cord from a local camping store - they sell it by the meter. The ends at the ends of the shock cord can also be bought from the camping store, but I made my own up. For heavier models (more bungee tension) you may also need heavier rings then I used.

It also doesn't have a pedal release, rather it uses a straightened tent peg that you swivel around with your foot for simplicity and portability.


Edit: - Image fixed.

RE: catapult plans?
 

Thanks Casey!