RE: scratch built micro bipe
well i decided not to scrap it after all. i recently had a change of heart for another of my planes and after doing some work on it, it turned out flying well. that being said i decided to give this bipe 1 more chance to prove its worth keeping. i pulled it apart and scraped the original fuse. one of the main issues is that i dont have any CA glue so ive been using hot glue on my builds. as you all are aware hot glue adds weight. but on the first fuse build i made the tail portion in 2 pieces, a top half and bottom half which i glued together. the 2 halfs being hot glued together added a considerable amount of weight. so on the second build i made it so that the tail portion only has one seam. it took more work forming it but i did manage to get it shaped, and was able to use much less hot glue on the 1 seam alone. as for the front portion of the fuse, the original was the same as the tail, i made that 1 with 2 seams. so the second time around i made it all as one piece, so the only hot glue on it was where i joined it to the tail portion, which didnt require alot of glue.
the second thing i did with the fuse this time around was i split the thickness of the foam board so that now its 1/3 as thick as it originally was. it took some work to do but i pulled it off rather nicely i think. but splitting the thickness drop alot of weight. i also split the thickness on the whole lower wing and 90% of the upper wing, leaving only the leading edge of the top wings thickness alone. the reason i did this on the top wing is with the airfoil shape i have formed in the top wing, with the foam being the thickness that it is it helps reduce the wings upward flex. im not concerned with the lowwer wing flexing as it is glued to the fuse on its center plus with the braces that attach the top and bottom wings in place it will further reinforce the lower wing. with the trimming of thickness both wings are pretty flexible now, ill get some pics up tommorrow for you guys showing the thickness and also how flexible they are.
as it sits right now if i had to try making a accurate guess i would say that overall compared to the original build the new bipe is about 60%, maybe 70% lighter than it was before. im confident it will fly for me this time around. im also going to take the time to instal the ailerons on it aswell and trim it as a aerobatic flyer. with the stock suhkoi motor setup i think the aerobatics will be limited, but i do plan on getting a brushless esc and motor for it in the future. but thats the update on the bipe, ill try getting some pics up tomorrow for you guys