Tony Peden writes: > > The altimeter does *not* indicate your altitude: it indicates > > calibrated barometric pressure. A lot of the time, the difference > > does not matter, as long as all aircraft are seeing the same error: > > for example, I was cruising at 6500 ft on Wednesday, using the proper > > altimeter setting, and showing up on Toronto Centre's radar at 6500 > > Hmm, do you have a mode C transponder? If that's the case, you and > ATC should always agree since ATC is getting the altitude from your > aircraft.
We did agree -- my altimeter was showing 6500 and Centre's radar was showing 6500, even if I was in reality a few hundred feet lower. The only reason we agree, of course, is that we're both using the same altimeter setting (and I assume that their computer is adding it automatically to the pressure-altitude response it gets from my mode C). 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
