On Tue, 13 Apr 2004 01:45:03 +0200, Olivier wrote in message <[EMAIL PROTECTED]>:
> Does someone already fly with Flight Gear? > > Here is my point : > > FG installed on a laptop and configured in such a way that : > the weather is sunny > time is set to 10:00 am > and only the hud is overlapped on the external forward view (no > A/C cockpit displayed) > > Now, a GPS and a "light" AHRS/IMU (like the MT9 of Xsens for instance) > is connected to the laptop. > > At last, the position, altitude, heading, speed, attitude, ... data of > the simulation are replaced by the sensor's data. > > We have here an unrivalled 3D primary flight display. > > (OK, for accurate Air Speed and Altitude computation, two additional > pressure sensors should be connected to the PC to get static and > dynamic pressure data. However, GPS Ground Speed and GPS Altitude data > are sufficient to validate the concept and much more easier to obtain) > > > This kind of display could be very helpful when flying in IMC because > it's always nice to have a clear representation of the surrounding > terrain, airfields, antennas, buildings, bridges, ... > > Flying in real IMC with a synthetic VFR environment could then > dramatically increases situation awareness. ..Burt Rutan wrote an article on this very idea in EAA Experimenter about 10 years ago. The remaining bits missing, is, radar drivers, radar to visual etc models, and a radar echo integrator to build the seen scenery and "the virtual antenna" track, and radar-to-radar communication, to share seen sceneries, "to see around the mountain". ;-) ..radar drivers must talk to "the iron", the radar track "virtual antenna" idea is chop the transmitted signal into pulses with an ID each, (yes, it's is patented, I've spoken with the guy, a Norse Naval radar officer ;-) ), the integration is a math trick to make use of "old" ID'ed echos to verify, enhance etc fresh data off the fresh echos, bonus is this use of old ID'ed echo data, "builds an antenna" the lenght of your track, and long antennas help accuracy. ;-) ..the RL HUD HW uses total reflection of (laser?) light to paint pictures on the inside of the cockpit glass, ( http://kr.cs.ait.ac.th/~radok/physics/l6.htm ), this can be done with similar hardware, or, say, lasers and mirrors controlled with audio speaker type membrane magnets. ..the remainder is AFAICT, a trivial adaption of FlightGear, and a somewhat less trivial certification. ;-) -- ..med vennlig hilsen = with Kind Regards from Arnt... ;-) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
