as this blog is getting too long, i better keep adding here on top what's new. easier to see it. thanks for your interest.
NEW:
jan 15
am starting a thread on 'motors for ultra micro models with 6400 brick'. give a look to it and bring your comments and contribution
https://www.rcgroups.com/forums/show...php?t=1368507s.
january 12, 2011
Classic Elf 20" (stick-n-tissue)
100 sq in, 50 grams auw, for 4s/suk components.
i spent the past 5 weeks working as hard as i could, re-designing the structure of the Elf 20" for balsa stick and tissue, building it, and just finished it. i have been doing foamies for the past who-knows-how-long, and finally went back to balsa. i decided to have 2 planes based on same design, same basic dimensions, 1 foam, the other balsa, and compare them.
so far, what i have to say is that, as we could expect, foamies build way faster, don't require as much skills or precision; take more punishment, and are easier to repair. what i was not expecting is that foamies are lighter than balsa planes, even stick and tissue: the foam Elf 20 weighs 42 grams auw, and the balsa 50. now, i still have to fly them, to learn what the difference in flight is, although that has to be indoor at the time, and in a hurry, because the boys at the gym only let light stuff for a few minutes.(update: maiden flight: see the thread at indoor and micro models-link below)
>>here are some details of the build: airframe: same wing planform (20"x5
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