My first build was a LT40 by Sig, but it's a trainer. My second build was a Sig Four star 60. It's a good plane to build with very good instructions and it flys great. After building these two I moved on to more scale planes. ( T28, WACO, Decathlon, J3 Cub, Sopwith Pup, Eindecker ) Good luck and enjoy it's very rewarding to build and fly and they are much stronger than ARF's