On 02/10/2010 15:00, Ian wrote: > I will go through this flight carefully, read the manual to try find > answers to my questions, then I will post some comments on this list.
I have already sent a copy of my raw log file to Max for his information. I have been replaying it and trying to work out how better to use the software. Some questions and comments: - When flying into the wind in wave, I got "landing" and "takeoff" warnings. There are also a number of "igc" log files for that date. It seems when flying slowly into a strong wind (about 70km/h) ground speed is so low that Xcsoar thinks the glider has landed. Hight AGL was still many thousands of feet. - Xcsoar clearly calculated windspeed and direction using "zig-zag" data. However the windspeed data was updated relatively infrequently and it often seemed to lag well behind reality. In the replay I set info boxes to display TAS, ground speed, wind speed and wind direction. I could see when conditions had changed and the above speeds did not correlate while Xcsoar still showed the old wind data. This was particularly obvious when approaching a new face on the ridge - this is the time when current wind data is needed most. How often does Xcsoar recalculate the wind? What triggers a recalculation? Can you trigger a recalculation manually? - A point worth considering. If the windspeed is strong enough to exceed the TAS, the glider will track backwards. Neither the GPS nor the ASI know the direction the glider is actually pointing and the zig-zag wind direction calculation could be out by 180 degrees. However I did not see this happening with this flight. - What is the easiest way to mark wave lift (or a thermal) and then navigate back to that spot later? I see the "drop marker" function, are there any shortcuts to trigger this? Are there any aids to navigate back to a "marker"? Finding the flag on the map display while flying might not be very easy. - Is there any way to switch the Xcsoar display to and from "circling mode". This would be very useful for ridge and wave flying when climbs are performed without actually turning. I could use the vario to trigger this but I normally override the flap switch and keep the vario in "climb" mode while flying ridges. (There are reasons not to follow the speed to fly director on the ridge.) Or is it best to just zoom in manually for the "climbing" display? - I did not see any airspace marking on the map or any airspace warnings. I thought I had these working on 5.4.4. I need to recheck my configuration. But are there any known bugs with airspace display with this version? Thanks Ian ------------------------------------------------------------------------------ Virtualization is moving to the mainstream and overtaking non-virtualized environment for deploying applications. Does it make network security easier or more difficult to achieve? Read this whitepaper to separate the two and get a better understanding. http://p.sf.net/sfu/hp-phase2-d2d _______________________________________________ Xcsoar-user mailing list Xcsoar-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcsoar-user
