I learned on a lt40 that was a kit i bought cheap with tower 46.Second flight motor was heating up and seized.That afternoon went to Lhs and bought a os 46 ax been great since that plane very heavy around 7lbs and with 6 0z in the nose.
I was later given a lt 40 arf that was assembled but not flown.I was almost ready for 2nd plane so i cut 6 in out of wing took out all diheidale(bad spelling)put a 55ax on it,plane all was cg-ed and battery and receiver was mounted just behind the servo tray.come out about 1lb lighter.Flys like a different plane hovers at 1/2 throttle knife edges like a stick great fliying plane now.

bigaco