RE: converting sig lt40
For others with a LT40 ARF or Kit already assembled or built.
My LT40 was assembled close to 10 years ago as a nose wheel plane.
You have to cut the rudder off at the hinges.
After mounting the tailwheel assembly and wire with the right angle. Drill the hole in the rudder for the tailwheel wire. Rehinge with new CA hinges. Get the rudder where it will reassemble without glue. Then epoxy the tail wheel wire into the hole and slide onto the hinges. Apply new CA to the hinges.
In making new slots for the hinges, I just cut alongside the original hinges with an Exacto knife.
The other type tailwheel conversions I have seen utilized a new additional control rod from the rudder servo for the tail wheel or utilized a pull-pull system.
I might add that the LT 25 kit plane has a pull-pull set up on the tailwheel and a pushrod to the rudder.
Some people have mounted the main gear in front of F-2 and some have them mounted centered on F-2 but the plane has ample tail weight with the gear legs behind F-2. With the gear too far forward the taildragger will be hard to land unless you full stall land it. The closer to the CG the easier they land up to the point where the nose wants to tip over. A compromise has to be reached.
The typical position for the main gear is at the leading edge of the wing.
The plane should still balance as shown in the instructions or plans. That would be in the area of the main wing spar.