Attila build but in general balsa shaping Q`s

[jimmy bond]

New to building and into a Attila build but have come to a area i have no idea in,shaping and profiles.

The wing as a built up TE which i think came out ok,it can be left straight or scalloped.i was going to leave straight for ease of covering but it does look good scalloped.my Q is,is the TE left square or rounded at all for normal or scalloped? when scalloped the curved portions cut away will form a point where they meet,that must be hard to cover or is the points knocked off? lastly the ele is made from robust stock with a Thinner TE stock fitted because the ele is then profiled down at the back,in this case the ele is not paralel front to back the TE is angled,when i profile should it be paralel to the front hinge line OR follow the TE angle,hard to disscribe that one hope it makes sense.thanks

[Peter Miller]

I would not worry about the scalloping on your first model. The trialing edge of the wing should be tapered to a thin edge but not too sharp or it will be too easy to damage it when moving the model round. the dreaded hangar rash.

The rear of the tailplane should be square but the leading edge of the elevator should be "V" shaped to allow for the movement of elevators, same applies to the rudder and ailerons.

Hope that answers your question.

[Bob Cotsford]

I scalloped the TE on my Baronette and to be honest it was a right pain in the bum to cover. I really wouldn't sweat it as it won't show anyway once it's in the air.

[Paul Marsh]

I built one years ago. Has a OS 15 in it.