Ausferret Posted August 9, 2013 Share Posted August 9, 2013 Posted by Tim Hooper on 11/03/2012 19:09:31: I've cut out the sides of the motor mounts from 2mm liteply, and also built a teensy little alignment jig from balsa. The idea is that with the wing panel laid flat on the board, the mount sides are jigged up by 23mm as they're glued to the insides of R4 and 5, resulting in zero downthrust. Simple, eh? I found the jig height incorrect as it gave up-thrust and the mount sides didn't locate correctly between the spars. I reduced the jig height to 14 mm and this gave me the required zero degrees thrust line. Has anyone else found this I wonder? Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted August 9, 2013 Share Posted August 9, 2013 I like jigs being a carepenter great idea ! tell me is that a magnet holding the wing down? Phil Quote Link to comment Share on other sites More sharing options...
Tim Hooper Posted August 12, 2013 Author Share Posted August 12, 2013 Ausferret, You're not the first, I'm afraid..... I seemed to have suffered some kind of brain fade when I penned that instruction, so please accept my apologies. Phil, that's not a magnet. It's just a weight from an old fashioned kitchen scale. tim Quote Link to comment Share on other sites More sharing options...
Ausferret Posted August 14, 2013 Share Posted August 14, 2013 No apologies required Tim. Thankyou for a cracking plan, I am enjoying the build. I intend t make the model with the in line engine as per the picture in this thread and have included some electric retracts which will retract to the rear. Will post pictures when completed. Quote Link to comment Share on other sites More sharing options...
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