Nalv. van een geheel andere discussie kwam ik dit tegen. https://www.dg-flugzeugbau.de/en/library/optimum-cg-sailplanes Kern-zin: The aft position of the center of gravity is not desirable in order to achieve a really good result. The best results were achieved about 30 – 35 % in front of the aft limit of the specifications for the center of gravity. That is caused by the elevator since it is not in a neutral (streamlined) position with a centered C/G. Instead it has to produce lift (an up elevator deflection) which it’s not actually designed for resulting in increased drag. Klopt? jan.