Back to Basics

Basic framework for the Kadet fuselage unpinned from the board and lightly sanded. Tail plane under way. Slicing up more 1/4" sheet to make the 1/2" X 1/4" main spar. Pencil, rule and rubber at the ready, I'm going to see about inset ailerons, don't fancy the retro fit full span strip jobs on the SIG add-on plan. Shouldn't be too difficult to add a couple of false spars and slice the ailerons out after the wing has been built.

Hi Brian - So it's ailerons then, gives you a better chance in the wind.
Thought the inset aileron arrangement on my vintage style "Rainbow" trainer
would be of interest - one servo per aileron allows for more accurate setting up - pics attached.
You are welcome to have a go with her when Cashmoor reopens, I use it mainly
for giving flight experiences when we have open days & also for occasional training.

Colin.

Thanks Colin, I'm setting the ailerons into the wing as that won't alter the "plan view". I'll reduce the dihedral to 1" under each tip too. I'll use one servo per aileron, easy to set up. What I must remember is to make holes in the ribs and fit paper tubes for the servo leads. The times I've ended up fiddling with a short length of sharpened brass tube between the rib bays!

The Kadet's wing is constant chord, I made a simple template so that I could cut the ribs one at a time, no point in making two templates and clamping them round twenty balsa blanks.The ply rib template has a piece of scrap balsa glued to one face, and a couple of "anti-slip" patches of sandpaper to the other. Anyway, slicing ribs is not only therapeutic, it enabled me to catch up on the latest episode of the Archers. Then I hit a snag, I was using 3/32" sheet for the ribs and I thought I had two sheets, I did, but one sheet had a bit missing. I could get eighteen ribs out of what I had, I didn't have anything else suitable, so I patched together two ribs from 3/32" offcuts. I'll put those two ribs at the wingtips, then they'll be glued to the tip blocks and it won't matter. The second rib template will be used to position and cut the assorted notches for spars etc.

Brian wrote: The Kadet's wing is constant chord.

That makes life much simpler Brian. A plank wing then.

Absolutely Phil, but "plank" doesn't sound very aerodynamic.