For my Mach Dart/Flash I used 3/4" copper tubing from home depot and cut 1" sections and melted lead into them each slug weighs 4 oz. and I use a total of 4 to give me a full pound .Just take a long section of tubing and wrap it once with paper and then with some plastic wrap and put some release agent on and glass the tube after the glass cures pull out the tube and plug the ends with epoxy after that cut out a half round section sleightly bigger than 1 " so that you can slip the slugs in like a shot gun. This tube fits very nicely in the mach dart(Flash) fuselage.You can cut just empty sections of tubing for spacers to vary your weight. I have found that I usually fly the plane with 8 oz.(2slugs) in most conditions .My plane seems to fly its best with this weight.However when the wind gets kickin the plane really smokes with the full pound!! ----- Original Message ----- From: "Steve Witt" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, October 25, 2001 10:18 PM Subject: [RCSE] Slope Racer Ballast Question
> I've got a couple of 60" slope racing sailplanes that I'm trying to make > ballast systems for. I have no experience in this so am seeking some > advice. My basic question is what increments of weight should I try to set > up for the ballast, and what might be the max ballast that would be useful > for airplanes like these? Something like 2, 4, 8 oz. ...; 3, 6, 9 oz. ...; > etc.? I fly in Southern California. > > The airplanes are: > > Airplane Span Wing Area Airfoil Weight Construction > -------------------------------------------------------------- > R-60 Cyclone 60" 420 sq in RG-15 32 oz. EPP > NSP Flash 60" 385 sq in RG-15 26 oz. Molded > > Thanks... > > > > > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
