I have a Sig LT-25 that I built to use my old .40 LA engine I had stored away for a year or so. I built the wing with reduced dihedral.(almost flat). The LA is not a strong engine anyway.... and another guy at our club has one with at BB .25 and it flies great. The plane weighs out at 4.5 lbs and the old .40 LA even gives me some great vertical. (REALLY) !!!
I have 3 other planes with Saitos..... but I have flown this light,easy-build, Sig kit as much as any other plane I have this spring. I am trying to learn a few aerobatics and I can "rough-in" the learning process with this plane. (less nerve racking, knowing I don't have as much time or money invested). ;
The LT-25 is as big as a lot of .40 trainers out there. (and lighter)!! The wing span is 63" and it is a tail dragger by the plans. The kit is also laser cut!! I didn't use the Pull Pull rudder set up as in the plans. I used a control rod.
...lownslo

Bob