David Megginson writes: > Right, but the system will also need input from a directional gyro (possibly > slaved) to know which way to make the needle point. My point was that it's > not like the ADF which (more or less) points towards the transmitter; it's > more a guess at where the transmitter might be based on the difference > between the inverse of the current radial and the indicated heading. If the > VOR radials are 4 degrees off magnetic (which happens fairly often), and > the VOR indicator is another 4 degrees off, you would could end up with the > needle pointing 8 degrees off the actual bearing to the VOR transmitter. > > I don't disagree that the HSI and RMI are good instruments to model, but I > don't think that Curt's idea of giving the actual bearing to the VOR station > is the right way to do it. We should be able to model the RMI VOR pointer > using only the (indicated) heading and the current VOR radial, just like the > real instrument does.
I don't think it hurts to expose this additional info via the property system, it might not be useful for any real instruments though ... Curt. -- Curtis Olson HumanFIRST Program FlightGear Project Twin Cities curt 'at' me.umn.edu curt 'at' flightgear.org Minnesota http://www.flightgear.org/~curt http://www.flightgear.org _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
