Fly Boy 3 Posted March 19 Share Posted March 19 Hi all. Years ago a I demolished the fus of a 40size bi plane. Wings survived. I have just discovered the fus of a very similar sized bi plane in loft and the old wings are a perfect fit. Thinking oh changing model to elect, but wondered if it will fly after all the work. If it does fly I can assume the characteristics would be different, but hoping I can cope with it. Thanks Quote Link to comment Share on other sites More sharing options...
Fly Boy 3 Posted March 19 Author Share Posted March 19 Just remembered, one model was called Josephine (Traplet) the other is a Tigermoth Cheers Quote Link to comment Share on other sites More sharing options...
Geoff S Posted March 19 Share Posted March 19 Why would changing the power source affect the ability to fly? As long as it turns the same size prop at approximately the same speed, it'll fly. The only real issue is getting the CoG correct as the electrical power system will probably be lighter than a liquid fuelled version - as wasn't formerly the case in the days of brushed motors and Ni Cad batteries. I have a couple of 58" DBS&S Moths, a Tiger and a Gipsy, which both fly fine with electric power sources. Quote Link to comment Share on other sites More sharing options...
Fly Boy 3 Posted March 19 Author Share Posted March 19 Thanks Geoff, not concerned with power change, more concerned with using wings not designed for the plane, and finding correct CoG. Thank you. Quote Link to comment Share on other sites More sharing options...
Don Fry Posted March 19 Share Posted March 19 I would not mess about with much theory. Assemble it, use a cg calculator, balance it and go fly. I’v done a few Frankensteins over the years and no huge surprises. 1 Quote Link to comment Share on other sites More sharing options...
john davidson 1 Posted March 19 Share Posted March 19 As I have said before converting to electrickery the main problem is enlarging the tank bay to fit a battery up against the motor mount , otherwise the cg is too far aft. My Christen Eagle had a wide cowl so managed to fit a battery transversely , the cg was spot on without ballast. Quote Link to comment Share on other sites More sharing options...
leccyflyer Posted March 19 Share Posted March 19 As Richard has observed a couple of times, putting the battery in vertically is a good way to get the weight as far forward as possible. If there isn't sufficient height to fit the battery in vertically then in several of my e-conversions of models deigned for IC engines, I've fitted an inclined battery tray, extending through the firewall, which makes best use of the weight as far forward as possible, as on the Kyosho Spitfire. 1 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted March 19 Share Posted March 19 Picture of wings and the fus would help Eric. Quote Link to comment Share on other sites More sharing options...
Fly Boy 3 Posted March 19 Author Share Posted March 19 Will do when I can John. Cheers 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.