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Timur
New Entry
Canada
1 Posts |
 Posted - 16/07/2025 : 18:06:50
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Hi,
I cant figure out the wind calculation. Recently, I flew a paraglider (EN-B class) in a north wind of about 20 km/h. I recorded the flight on LK8000
(IGC file: https://drive.google.com/file/d/1hcg1Ju6kXfn1n2WOaFdE_JVrQXJzQ971/view?usp=sharing)
Fig. A after 78 circles, the program determined the wind from 10 degrees at 13 km/h.
Fig. B one minute later, the program reduced the wind to 9 km/h. From the spiral tilt, its clear that the wind is actually more westward and stronger.
Fig. C I manually entered the wind from 350 degrees at 20 km/h. The picture became correct I was indeed circling the thermal, then making a glide against the wind, and circling again.
Fig. D the same track log played back in XCTrack the wind was correctly determined literally from half a circle and then changed only slightly (2023 km/h at 350 degrees).
Could you please advise what Im doing wrong?
My settings:
Category: Paraglider/HangGlider
Type: Para_EN_B-DHV12.plr
Max Speed: 49 km/h
Auto Wind: Circling
Trail Drift: ON (tried OFF)
TrueWind IAS: 36 km/h
TrueWind Period: 10 s (tried 5 s, 20 s)
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Edited by - Timur on 16/07/2025 18:23:24 |
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Wind Calculation trouble
