On Wednesday, November 23, 2011, Tobias Bieniek wrote: > The problem is simply that in some cases MC theory doesn't need to be > applied anymore even though you are still below glide path... e.g. > when expecting ridges or other lift sources other than circling along > the way.
Yes exactly. MC theory can not consider this effects. In a previous message I have shown an alternative which is available now and does not involve any guesswork and even works if just about all the assumptions needed for a correct MC calculation (i.e. polar, wind, bugs, ...) are incorrect. > XCSoar provides many alternative concepts. It is not necessary to force > something like the MC theory into providing results based on data > which it can not correctly consider (e.g. things like ridge lift or > airmass lift). > > The infobox setup I use for final glide for instance contains "Fin L/D" > which provides a pure geometric calculation to reach my final WP at > the safety height. That alone would not be very helpful (e.g. because > of wind, airmass movement). So I additionally use "L/D Avg" (providing > the average L/D I achieved over a configurable timespan) and "L/D Cru" > (which provides the L/D I achieved since leaving the last thermal). The > latter two correctly show the effects of all factors which involve > my glide performance (bugs, airmass movement wind, aircraft performance > and my less then perfect flying.) Comparing the "Fin L/D" and the > other two values is a perfect basis for decision making, i.e. to decide > if I can fly faster and more aggressive. > > I also use the arrival height estimation for decision making but certainly > not alone. Andreas ------------------------------------------------------------------------------ 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
