outbaxx Posted February 13, 2017 Posted February 13, 2017 I've just read a book about the viggen and how they overcame the problems with the aerodynamics. There are pictures that show the pitch moment for the viggen changing with Mach. These pictures show a positive pitch moment until the transonic region where there is a pitch down followed by a pitch up and the a decreasing pitch moment as the speed increases. But in the sim it feels like there is a negative pitch moment even in the subsonic region, I have to trim pitch up a lot to make it fly straight. Wouldn't a positive pitch moment mean that there should be a "nose up" instead of a "nose down"?
59th_LeFty Posted February 13, 2017 Posted February 13, 2017 Fuel tanks configuration? You need a 3deg nose up (?) trim for a belly tank Tapatalkkal küldve az én SM-A510F eszközömről [sIGPIC]http://www.forum.lockon.ru/signaturepics/sigpic5279_1.gif[/sIGPIC] I could shot down a Kitchen :smartass:
Pocket Sized Posted February 14, 2017 Posted February 14, 2017 Positive pitching moment is referring to the aircrafts tendency to pitch up as airspeed increases in the subsonic region. Once you have the plane trimmed out it will act as described in the paper. DCS modules are built up to a spec, not down to a schedule. In order to utilize a system to your advantage, you must know how it works.
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