Arrival altitude should NEVER consider circling! I never heard of such theory. Arrival altitude should only consider polar, degradation, wind and MC, although it would be fine without considering MC at all. But trying to guess your climb and your drift while climbing is completely wrong. We are not trying to predict the future, we are trying to tell the pilot if he can safely reach an airport or how much he needs to climb.
Ramy On Nov 21, 2011, at 5:43 PM, Tobias Bieniek <tobias.bien...@gmx.de> wrote: > John, I think this is inconsistent behaviour... either if you can't > climb you shouldn't see the pure glide value, or if you have a MC > above 0 you shouldn't consider the wind effect while circling. Maybe > for internal calculations we should supply both values and let the > user decide what he wants to see. > > Turbo > > > > 2011/11/21 John Wharington <jwharing...@gmail.com>: >> This is not a bug. >> >> At MC=0, you cannot climb, so the value reported (-500 feet) indicates >> you magically need to gain 500 feet in order to glide at MC=0. >> >> At MC=0.5, you are telling the computer you can climb, and with that >> headwind and a slow climb rate (0.5), you need to climb a lot more. >> In this case, the 500 feet isnt obtained magically, and so the height >> required takes the downwind drift from circling into account. >> >> On Tue, Nov 22, 2011 at 1:34 AM, Ramy Yanetz <ryan...@yahoo.com> wrote: >>> Arrival altitude was at MC =0 was something like -500 feet (500 feet below >>> glide) which was correct. However, With MC=0.5 it was -6000 feet!!! This is >>> obviously a bug since the slight increase in MC will never result in 5000 >>> feet loss. >> >> ------------------------------------------------------------------------------ >> All the data continuously generated in your IT infrastructure >> contains a definitive record of customers, application performance, >> security threats, fraudulent activity, and more. Splunk takes this >> data and makes sense of it. IT sense. And common sense. >> http://p.sf.net/sfu/splunk-novd2d >> _______________________________________________ >> Xcsoar-user mailing list >> Xcsoar-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/xcsoar-user >> ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Xcsoar-user mailing list Xcsoar-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcsoar-user
