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Seniorita Ailerons

Old 09-24-2002, 07:09 PM
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Default Seniorita Ailerons

Barn door requires more planning than strip style, but looks neat on the plane. Best to drill the wing ribs before assembling the wings. Put an individual servo out in the wing for each aileron and the holes are to route the servo leads. (rolled paper through the holes makes it easy to change servos if a problem comes up.)

The Barn door ailerons would normally be about 15% chord X just over 50% span. (if the smaller version's structure is the same as the SR... the rear spar seems as if it would make a good hinge line, but is close to 25% chord from rear, so the ailerons would come out LARGE.) Hinging can be a pain. (needs to be hinged near top f surface) Building the aileron sections can be a trouble spot if you haven't built and modified a couple of kits.

Strip ailerons... just trim all ribs (yes, even center ones... it helps with alignment.) a bit, install a square balsa stock between the ribs and the kit's TE stock. (on SR it would be 3/8 square Trim by the amount to match your inserted stock.) Double bevel the front of the kit TE stock... sand the top angle into the added stock. There's your hinge line. Use your favorite method to operate the ailerons. (torque rods would be good.) Much easier than the barn door...

When adding ailerons.. reduce dihedral 75% (dont make the wing flat... looks like it droops if you do.)
Old 09-26-2002, 01:02 PM
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Default Seniorita Ailerons

BTW... If you want more aileron chord than the stock TE dimension... laminate on rectangular stock to the front of the TE stock. It not hard, its cheaper than buying wider TE stock too.

If you've seen the center section f a wing with strip ailerons using torque rods... the center for the strip aileron version for bolt-on should be no problem.

The front of the senior/Seniorita wing doesn't look easy for a dowel aligned LE for bolt-on. Instead do a 4-bolt setup. 1/4-20's at LE and 8-32's at TE will be plenty for most flying. If diong a lot of aerobatics, add another set of 1/4-20's as close to the main spar as posible fr a total of 6 bolts. (assuming all nylon bolts Steel bolts... 6-32 and 4-40 will do it.)

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