On Tue, 2011-11-22 at 14:07 +0100, Tobias Bieniek wrote: > That is a valid question and by reading both feature requests it seems > that people are actually requesting both independently. My personal > opinion would favor the L/D relative to the airmass. If I understand > correctly that version would take the wind into account, right? I > don't think the geometric L/D is particularly useful as it doesn't > even take the wind drift in cruise into account. Not sure how the > others do it but if I remember right LK8000 shows the geometric value. > My SDI C4 vario has an L/D display. The manual is rather unhelpful, just describing it as 'achieved glide angle'. I think its showing IAS/sink rate, which it can do easily, since it has an internal pressure altimeter and a pitot connection.
The achieved L/D is quite a useful number to have when you're running along a weak energy line and may be helpful in wave too. One of these days I'll find out about the latter! However, I can see little use for the geometric equivalent which would be derived just from GPS fixes. Martin ------------------------------------------------------------------------------ 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
