On Wednesday, November 23, 2011, Michael Schlotter wrote: > Didn't XCSoar 5.x had two flight modes: > en route: take drift during circling into account for required height > display on glidebar > final glide: show arrival height on glidebar for current MC setting > assuming no circling > > If there was such a functionality implemented in 6.x (maybe it is > already and I have missed it?) then everyone would be happy. If you > prefer the current system, stay in "en route" mode. If you want XCSoar > to mimic the other flight computers in your cockpit change to "final > glide" mode. > > Maybe these modes should get more descriptive names, but I liked the > concept. Although I completely understand the new calculations in 6.2.x, > I am confused by the numbers displayed. IMO changing to 0 MC is not > really a good option, as it gives overly optimistic numbers. It is very > hard to fly exactly at the best glide speed, never mind getting the > polar right for the glider. > 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
