Back to SkyDemon Website
Important: These forums are for discussions between SkyDemon users. They are not routinely monitored by SkyDemon staff so any urgent issues should be sent directly to our Customer Support.

GS quirk on first leg when manually setting all legs wind


GS quirk on first leg when manually setting all legs wind
View
Options
Author
Message
sjhoare77
s
sjhoare77
posted 6/10/2020 10:10:46 PM
Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)Junior Member (15 reputation)
Group: Forum Members
Posts: 2, Visits: 0
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?

Attachments
PrintItem.pdf (464 views, 42.00 KB)
Reply Like 3
Reply
grahamb
grahamb
grahamb
posted 6/11/2020 12:46:59 AM
Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)Too Much Forum (8.6K reputation)
Group: Forum Members
Posts: 594, Visits: 29K
 
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?

Whilst the PLOG shows the cruise speed TAS, the calculation is actually using TAS based on your aircraft performance tables, which will be lower in the climb. 
Reply Like 4
GO

Merge Selected

Merge into selected topic...



Merge into merge target...



Merge into a specific topic ID...



Submit

Threaded View
Threaded View
Hi, Planning a route today on my Android tablet using the latest...
sjhoare77 - 6/10/2020 10:10:46 PM
RE: GS quirk on first leg when manually setting all legs wind
grahamb - 6/11/2020 12:46:59 AM
RE: GS quirk on first leg when manually setting all legs wind
Tim Dawson - 6/12/2020 8:35:31 AM
     Thanks Tim - much appreciate your input on that. I really did think I...
sjhoare77 - 6/12/2020 9:32:48 AM
RE: GS quirk on first leg when manually setting all legs wind
Tim Dawson - 6/15/2020 8:54:36 AM
     Perhaps the TAS shown could be averaged as well, to help comprehension...
grahamb - 6/15/2020 8:59:29 AM
RE: GS quirk on first leg when manually setting all legs wind
Tim Dawson - 6/16/2020 12:02:10 PM
RE: GS quirk on first leg when manually setting all legs wind
PaulSS - 6/16/2020 3:43:20 PM

Post Quoted Reply
Reading This Topic

Powered by InstantForum 2017-0 Final © 2025
Execution: 0.000. 1 query. Compression Enabled.

Login

Explore
Messages
Mentions
Search