• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.
Pumpkin drop event

FT EXPLORER spar improvement

#1
Hello to everybody,
Here my solution preventing the FT Explorer inflight wingfolding process well documented on Youtube, based on a 4 mm steel bar, 2x 8x3 pinewood sticks, an aluminium tube and 2 x 1mm aircraft plywood spacers.
Advantages :
-strenght
-modularity (easy possible process to increase wingspan)
-advanced storage (2x 1/2 wing)
-short building time (about 2.5 hours, including R&D !)
-weight increase negligible
My ailerons wing will include the same modifications.
I stay you informed about the first flight.
It is my first FT build. Really amazing and cool.
Greetings from cold Switzerland.
Ol EXPLSPAR1.JPG EXPLSPAR2.JPG EXPLSPAR3.JPG EXPLSPAR4.JPG EXPLSPAR5.JPG EXPLSPAR1.JPG EXPLSPAR2.JPG EXPLSPAR3.JPG EXPLSPAR4.JPG EXPLSPAR5.JPG ivier
 
#3
Hello Tench,
1 aluminium tube in each 1/2 wing, the 4mm steel bar joining them.
Note the 3mm steel bar on the picture, not intended for this model, but showing
the dihedral.
One of my design advantage: testing the best dihedral is very easy, just make another one
with an other angle !
I suggest one improvement and will include this in my ailerons wing:
close the aluminium tube Inside of the wing. This will prevent a dihedralless steel bar (if you want to try a dihedralless wing) disappearing in the aluminium tube ... Clé1.jpg Clé1.jpg