1. Tiplets. Don't make them Smaller! Especially don't reduce the amount of tip that's below the wing. If you do, you will 'ruin' the airfoil and have all kinds of tipstall problems. To reduce weight, use lightweight balsa or even the pressed foam trays that your t-bone steak comes on. As long as you use this criteria, make 'em any fancy shape you want. Also consider using a lithium 2-cell (3 volts each) battery pack. Use the CR123's, and be careful soldering the leads on to them. Lithium's don't like heat ! Also, use HS-55's They are pretty new and kind of hard to find, but they are as strong as HS-60's in a HS-50 case. Great stuff! DJ Areotech uses them in their 2M planes! Currently, if you want a Really light Boomerang, Frank can cut you one made of white foam, similar to the Zagi THL. It comes out around 9 ounces with moderate care to details. I've been thinking about using the clear Mylar covering that the indoor guys use, that or the silk stuff. With unlimited time and money, 8 ounce boomerangs are quite feasible. 2. Removable tow hook: Use two layers of light plywood and take a short woodscrew with a smooth shank and the threaded part is about 1/2" long. Then bend the shank 90 degrees, and cut it off with your Dremel. Screw it into the plywood and tape it on with Strapping tape when the need arises. Cheers, Nathan Woods Webmaster: www.boomerangwings.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 18, 2000 8:25 AM To: [EMAIL PROTECTED] Subject: Custom winglets ! Nathan- In building the lightest possible Boomerang, not for Combat, what shape do you suggest for coroplast winglets. Also, do you see a problem with glueing them to the end of the wing instead of the tape method ? I couldnt find any pictures of small winglets on your site. I am using these methods to build a Boomerang for light thermal and slope conditions. Also, any tips for a removeable tow hook ? Thanks ! - JACK. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
