John Wojnaroski wrote: > both 747 and f15 seem to be underpowered. or possibly too much drag? > Can't hold a vertical climb in the f15 and can only get to mid altitudes in > the teens with 747
This is the second time this has been reported, but I can't reproduce it. Your note later on, however, looks like a good clue: > does each each engine have a throttleor is it a single command for all > four(two)? They are separate properties -- the left engine(s) use /controls/throttle[0], while the right are controlled by /controls/throttle[1]. This is handled in the aircraft XML file. I didn't define four separate controls for the 747 because I was lazy; making that work would require changes to the default control mappings. If your throttle is only jiggling the first property, then that's the bug right there -- you're only getting half the thrust. > engine egt is given in degrees centigrade and fuel-flow for turbines is > usually given as #/hr (1 gal ~ 6.5 pounds) The current egt property hands you fahrenheit. Fuel flow is in gallons per hour. Especially with the fuel, I'd agree with your choice of units; but nonetheless that's what the standard currently says. Maybe we should go through and audit the FDM outputs for a sane set of baseline units. > Engine data is a little screwy. running jbsim for the c310 no data comes > across and for yasim-747 the zeroeth values are missing. > Not sure i've got this properties thing all figured out yet. Missing? Weird. There were some changes here recently that might be causing this. David was kind enough to give me a heads up about the changes to the YASim code, but I ignored it. :) I'll take a look. Andy _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
