Christian Mayer writes: > As I wrote before, there's a function in the WeatherCM code that > calculates the air pressure based on the air pressure at a given > altitude and at a given teperature profile. It is based on the well > known (but incorrect) baryometric (SP?) formula but doesn't suffer from > its limitations. When you feed it, the standard conditions it will > return the standard atmosphere. > > When you adopt that code, you'll automagicly get the correct results.
Does the code handle only pressure? There are a few fairly good atmosphere models I can adapt (including the one in JSBSim); I just stuck with the tables for now because they keep the code fast and simple. I want to be able to extrapolate both ways -- if the user supplies a temperature or pressure at altitude, I want to be able to extrapolate the temperature or pressure at sea level, and vice-versa. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
