I've seen the same so switched the wind calculation to external. If you have external wind info such as 302 it may be a better choice. I found the 302 wind calculation more accurate and more current. That said, the most instantaneous and accurate wind calculation is the HW/TW component info box (don't have XCSoar in front of me so not sure how exactly it is called) but make sure to choose the simplified one if your vario provides TAS. This info box is crucial in final glide when you don't change heading enough to update the vector wind calculation which will show you the last calculated wind while the simplified (I believe this is how it is called - weird way to call it) HW/TW will continuously tell you your HW/TW vector. Where I fly the HW may change to TW or vice versa half the time so this is crucial info since unfortunately XCSoar only use the vector wind for glide calculation.
Ramy (Sent from my iPhone) > On Nov 21, 2014, at 11:48 AM, SoarTronic team <soartro...@gmail.com> wrote: > > Hmm. I have seen that happening time to time. XCSoar running on NOOK, > IOIO + Soartronic UART interface, FLARM on UART 0 and LX160si on UART > 2. LX160 sending TAS 8or is it IAS actualy) is a bit slow. just my two > (euro) cents ;^) > > 2014-11-20 19:29 GMT+02:00 Ian <ian-xcs...@zsd.co.za>: >> Hi All >> >> I have experienced XCSoar report grossly inaccurate wind values. Wind >> speeds of > 100km/h, coming from the completely the wrong direction. >> This happens with wind settings on "auto, both". I have seen it quite >> often, but not on every flight. If I play with settings during flight, I >> can sometimes fix the issue. Setting wind to "auto, circling" for a >> while seems to help. If I can "tame" this issue, the wind calcs are fast >> and accurate for the rest of the flight. >> >> This is a photo of a NMEA log file replay on my Dell Streak which shows >> the problem: >> >> http://users.zsd.co.za/~ian2/xcsoar-bug/2014-11-20%2009.24.36.jpg >> >> The wind speed is indicated > 100 km/h, it should read about 25km/h. >> This is an hour and a half into the replay. I also setup info boxes to >> show true airspeed and ground speed. >> >> I searched the bug lists and I found this ticket which appears to >> describe my problem: >> >> http://bugs.xcsoar.org/ticket/3062 >> >> I have added comments to that ticket with a link to a NMEA log file and >> that photo. >> >> Unfortunately nobody has claimed ownership of this bug and there have >> been no updates for over a year. So I posted this here least somebody >> sees this and is inspired to provide man hours to fix the problem. >> >> I do a lot of ridge and wave flying where circling wind calcs do not >> work and I loath playing with PDA settings in flight. (Definitely not a >> good idea when ridge soaring!). So I am keen to help get this bug fixed. >> >> Thanks in anticipation! >> >> >> Ian >> >> ------------------------------------------------------------------------------ >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & more >> Get technology previously reserved for billion-dollar corporations, FREE >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> _______________________________________________ >> Xcsoar-user mailing list >> Xcsoar-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/xcsoar-user > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > _______________________________________________ > Xcsoar-user mailing list > Xcsoar-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xcsoar-user ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Xcsoar-user mailing list Xcsoar-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcsoar-user
