|May 23, 2010, 12:48 AM|
so yes i have decided to make a shifty fully airfoiled. i started with the basic template i have been using to make my wings. so i sat there for a good hour trying to figure out how i am goin to get an airfoiled wing out of this. did my research online and found zaginutz website.
i read thru the whole site for ideas and yes i found what i was looking for.
first. i took the paper off of the foam by using a rod, teared and lifted the corner of the 20x30 sheet. i did this both sides.
then i traced the wing onto the peeled foam board, i left 2" all the way around except the leading edge of the wing.
i beveled the leading edge of the peeled foam wing, 45degrees
to make the airfoil . i cut a strip of regular foam
one side height is 3/4 and the other 1/4in
and i followed the same technique they used in zaginutz
after that strip is glued. i started to glue the top wing .keeping the leading edge flush .
repeat same procedure on other wing.
cut the the middle excess peeled foam even with bottom wing
now added the spar
now its time to make the aifoil shape. first , i made sure that both halves are glued together. then i wanted to make sure both side are even shape . after thats done i started gluing everything in place.
so this time its time to take a trip to the store.
home depot.. strapping tape and 3m 77 adhesive
walmart.. colored duct tape-neon green for top and black for bottom
now its time to stiffen this wing .
basic covering technique for wing covering , dont put too much tension
did this on top and bottom
then after everything is sealed tight , its time for colored duct tape
located where i wanted the battery door is goin to be, 2 3/4 square was good enough
used coroplast for side fins
taped that in place. done
now its time to make control surface.
i cut the desire shape and length.beveled,added cf on both elevons,then taped with strapping tape to stiffen it up, covered with colored tape. hinged it to wing. done
now its a finished wing without the electronics .
dont know about the weight
after all that tape made the shifty wing really stiff and im pretty happy how it turned out from 2 sheets of foam to a zagi type wing
2 sheets of foam -$2
roll of strapping tape -$8
2 rolls of colored duct tape $3.87 each- $8
cf scraps from past projects -- $0
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