So that's even an easy flier. The only thing that bothers him is the Schwanzlastigkeit how many have already found. The big C there are self weights in the Model Department, for 2, - the strip. Approximately 1 gr. 2 to 3 centimeters from the bottom could stick to the flyer of the nose and then he is from the airport image a real flyer and also to control quiet. Even with a slight wind. But you have to try out for themselves the what a better located. With 2 grams of weight but go no more loops, even if one puts him fully in the headwind. In a pinch, and also for testing can be done easily with adhesive glue a 1- or 2-cent piece. By better attitude to the flight time, depending extended course of external conditions such as wind and sunlight. Otherwise, the sport has much better sliding properties than the double-decker and is a little faster. The optimal switch from slower biplane so. But I both love to fly.