Build Articles
Bench Tests
Hints & Tips
Flight Reviews

 
Last Updated: January 10, 2008 - 09:28:40 PM


DIY - Bungee Launcher (PVC)
By Carl Tulanko
February 15, 2007 - 02:39:31 AM

Email this article
 Printer friendly page
1_3.jpg
01 - My PVC Bungee Launcher is a provides some flexability base don your plane. It is able to use either rails or a ramp.
2_3.jpg
02 - Ramp with PVC screwed to the bottom for mounting. This is a common White 1x12 x 48" Shelf Board you can get at your local hardware store.
3_3.jpg
03 - Pipe Clamps are screwed to the bottom using 5/8" #8 screws.
4_7.jpg
04 - I made adjustable center rings (the small thin rings) to adapt the 3/4" tube to the 1" "T's" in order to remove the slop from the original design. These were made from PVC coupler.
5_10.jpg
05 - The frame assembly.
6_10.jpg
06 - The support equipment showing two different length tow lines, 1/2" diameter x 1/4" center - surgical bungee tubing, dog chain anchor and #12 nails.
7_6.jpg
07 - The hook up.
8_6.jpg
08 - Bungee using rail launcher.
9_6.jpg
09 - Front view showing cord run.
10_6.jpg
10 - Bungee using ramp launcher. This was used because the rail launcher had the elevons sitting on the rails, applying undue stress to these control surfaces...It's not what I wanted.
11_6.jpg
11 - Front view showing hookup. Bungee is stretched to 15-19 lbs for the FA-18 and the ramp provides a very smooth and slick low resistance surface for the flat bottomed aircraft.
12_10.jpg
12 - Closeup showing hook up.


Top of Page

 
 
Warbirds-RC.com (© 2004 - 2007)
17360 Colima Road #778 - Rowland Heights, CA 91748 - USA