Results 1 to 9 of 9
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10-18-2015, 06:36 AM #1
mcdu perf appr - wind from different directions
Hi,
what do I have to insert on the MCDU PERF APPR page at arrival airport surface wind, if the wind comes from different directions?
Thanks for the help
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10-19-2015, 05:52 AM #2
Re: mcdu perf appr - wind from different directions
Sorry i didn't understand your question... when you get a metar you have only 1 direction for wind
P3D V5 HF1 - PC spec: Intel i5-6600K, 16 GB DDR4 2400, GPU Nvidia GTX1070ti, M2 SSD NVme, JH FMGS, GSX, ASP3D+ASCA+ENVSHADE
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10-19-2015, 07:15 AM #3
Re: mcdu perf appr - wind from different directions
VRB - Variable
Used when windspeed is less than 3KT or during a violent thunderstorm
when wind direction can not be determined.
You can not insert VRB on the MCDU PERF APPR page.
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10-19-2015, 07:25 AM #4
Re: mcdu perf appr - wind from different directions
I usually insert only the wind
P3D V5 HF1 - PC spec: Intel i5-6600K, 16 GB DDR4 2400, GPU Nvidia GTX1070ti, M2 SSD NVme, JH FMGS, GSX, ASP3D+ASCA+ENVSHADE
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10-24-2015, 02:07 PM #5
Re: mcdu perf appr - wind from different directions
BLANK is also not a valid value for the wind direction. It must be a value between 0 and 360.
I suppose variable (VRB) is currently not implemented.
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10-25-2015, 03:18 AM #6
Re: mcdu perf appr - wind from different directions
I don't think winds have been implemented into the calculations so I leave this blank.
Soarbywire - Airbus Flight Simulation and Engineering | Jeehell FMGS - Free professional A320 avionics software for the cockpit enthusiast.
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11-04-2015, 10:58 PM #7
Re: mcdu perf appr - wind from different directions
you can insert the headwind...runway heading if it VRB
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11-09-2015, 04:09 AM #8
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Re: mcdu perf appr - wind from different directions
The wind is only used to calculate Vapp.
Always use the worst case scenario. Let's say runway is 360°. Wind is given as 05015kt 010V090. In this example worst case would be 090° with 15kts because it's the full crosswind.
As a guideline: Headwind is good, crosswind is bad, tailwind is worse.
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11-09-2015, 06:45 AM #9
Re: mcdu perf appr - wind from different directions
Whatever Mag/Wind I insert in the Approach page my VAPP does not change.
Soarbywire - Airbus Flight Simulation and Engineering | Jeehell FMGS - Free professional A320 avionics software for the cockpit enthusiast.
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