Some advice from an old timer who has been in this hobby for 23 years. Your Cap 21 question is posted in the "Beginner Forum" so my assumption is that you are a beginner. Welcome to the hobby, it's a lot of fun. My advice to you is that the Cap 21 is a hot plane and, as a beginner, don't try to fly it on your own until you have some good flying experience under your belt. I have made and flown a Cap 21 and it is a fun plane to fly, but it also is a fast and hot plane to maneuver and land. This is the type of plane that an intermediate flyer with a lot of flying time can handle. I also recommend that if you have access to a simulator with a Cap, get on it and practice. The Aerofly Professional Dekuxe Simulator by Ikarus has a Cap in it.