ORIGINAL: oquirrhmd
I'm planning on building the Sig LT40 this winter. I flew the Sig Kadet Senior for 2 years about 10 years ago and now I'm starting up again. I was using an OS .40 in the Senior and found it a bit lacking after a short while. I was thinking about a 4 stroke or a bigger 2 stroke in the LT 40. I want to use the biggest engine it can handle. Any advice? I also need a new radio system and am thinking of a 6 channel futaba so I can use it on more advanced craft in the future. Just to throw more questions into the mix I have an old Great Planes Trainer Forty kit, but I think with the symmetrical wing and little to no dihedral I should step back to a more basic trainer like the LT40 to get my skills back. Again any advice would be much appreciated.
I have a SIG LT 40. I dropped an Evolution .46NT 2 Stroke on the plane and it flies great. It has plenty of torque and power and the engine is very responsive so far. I did notice a couple of bumps in the engine this last weekend, but I think it was a tiny bit lean. I plan to adjust it when I have a helpt to hold the tachometer. Other than that, more expierence pilots have flown it and I have too and it works great so far. I am using a 10X7 prop on it now. Pretty soon, I'll abandon that for a prop that will give me more bang. I used that prop at suggestion to slow it down until I got my air legs back again. I just started back up after a long hiatus away from RC flying. I combined that with a Futaba 6 Channel Radio.
Hope this helps.
Happy Landings,
Phil
http://www.sandhillsrcflyers.org