RE: Ready to begin CG Chipmunk
Hi,
This is a relatively easy build (not as easy as SIG). Given you have the LT-40 under your belt it shouldn't be a problem. There are many Chippy threads here in RC Universe.
Just beef up the landing gear with braces and build it with the two aileron servos, (you will need to use low profile servos or mount standard size on their sides).
This is a great flying model. Enjoy.
Cheers,
Colin