SkyDemon Forums

GS quirk on first leg when manually setting all legs wind

http://forums.skydemon.aero/Topic31421.aspx

By sjhoare77 - 6/10/2020 10:10:46 PM

Hi,

Planning a route today on my Android tablet using the latest version of SkyDemon and I noticed the following oddity. I was overriding the auto winds, as I was practising using my whizz wheel, so had set an all legs wind of 300/10. However on the first leg with a track of 324 deg my PLOG (attached) shows a ground speed of 90 kts; whereas the minimum it could be fighting a straight on headwind would be 100 kts. Has anyone seen this before or can indicate where I've screwed up?
By PaulSS - 6/16/2020 3:43:20 PM

I, personally, wouldn't bother. Maybe put a one sentence explanation in the manual but, apart from that, all that's important is the time and fuel at the next waypoint after takeoff. If SkyDemon calculates that correctly then I think I'd rather look out the window during the climb and not really bother about exactly how the app is calculating it. Fly at the climb speed you used for planning and all will be well.