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News: The latest PSX update (version 10.49 from 15 October 2018) is available at: http://aerowinx.com/board/index.php?topic=4191.0

Author Topic: Winds aloft injection -- just an idea ...  (Read 2071 times)

Will

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Re: Winds aloft injection -- just an idea ...
« Reply #100 on: Sat, 13 Oct 2018 04:09 »
I've found the same thing (and said it before here) -- planning in PFPX based on real-world weather, and then flying with PSX weather, as long as you drag the jet stream into something that merely approximates the 300 Mb chart -- makes for very accurate flights. Variation between PSX and the PFPX prediction seems probably within the limits of the difference between actual dispatch weather and real-world flying, but of course that's just a guess on my part.
Will /Chicago /USA

Double-alpha

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Re: Winds aloft injection -- just an idea ...
« Reply #101 on: Sat, 13 Oct 2018 04:22 »
From my A340 FCTM :

WIND AND TEMPERATURE When reaching cruise FL, the crew will ensure that the wind and temperatures are correctly entered and the lateral and vertical F-PLN reflect the CFP. Wind entries should be made at waypoints when there is a difference of either 30 ° or 30 kt for the wind data and 5 °C for temperature deviation. These entries should be made up to four different levels to reflect the actual wind and temperature profile. This will ensure that the FMS fuel and time predictions are as accurate as possible and provide an accurate OPT FL computation.

Hardy Heinlin

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Re: Winds aloft injection -- just an idea ...
« Reply #102 on: Sat, 13 Oct 2018 11:53 »
Good hint. Thanks. So the maximum allowable difference should exceed 030°, 30 kt, 5°C in order to allow such scenarios (when desired).

Dispatcher

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Re: Winds aloft injection -- just an idea ...
« Reply #103 on: Sat, 13 Oct 2018 21:59 »
Sorry for the question but I may missed something; will this new feature be autonomus, with no need to use FSX/P3D simulators, or PSX.NET,  FSX/P3D extra weather generator etc?
Thanks
M.C.
FAA Aircraft Dispatcher

Hardy Heinlin

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Re: Winds aloft injection -- just an idea ...
« Reply #104 on: Sat, 13 Oct 2018 22:02 »
If you want to sync it with add-on XY, you need add-on XY.

If you want to design your own corridor, you need no add-on.

Britjet

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Re: Winds aloft injection -- just an idea ...
« Reply #105 on: Sun, 14 Oct 2018 15:34 »
Good hint. Thanks. So the maximum allowable difference should exceed 030°, 30 kt, 5°C in order to allow such scenarios (when desired).

Just to be clear - I assume that what he is taking about here is a manual input of the wind data and when to do it. In practice it is done manually as described when the forecast wind or temp changes significantly, rather than for each leg.
Peter.

Hardy Heinlin

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Re: Winds aloft injection -- just an idea ...
« Reply #106 on: Sun, 14 Oct 2018 16:33 »
Yes, that's clear.


|-|ardy

Gary Oliver

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Re: Winds aloft injection -- just an idea ...
« Reply #107 on: Sun, 14 Oct 2018 17:56 »
Hardy,

Chances of getting this in before world flight?

Our psx.net.weather module needs some fixes doing to it, shall we not bother and await your superior native version?

Cheers
Gary

Hardy Heinlin

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Re: Winds aloft injection -- just an idea ...
« Reply #108 on: Sun, 14 Oct 2018 19:45 »
Definetely not before world flight. Rather December or next year. Seriously.


Cheers,

|-|ardy

Britjet

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Re: Winds aloft injection -- just an idea ...
« Reply #109 on: Sun, 14 Oct 2018 23:08 »
Looks like it might be Wednesday, then...:-(

Hardy Heinlin

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Re: Winds aloft injection -- just an idea ...
« Reply #110 on: Wed, 17 Oct 2018 20:58 »
I just realized there's a misunderstanding in this comment:

Having looked at lots of real world OFPs & compared this data in real time to the out put data created by WX engines PSX users are using to inject WX into scenery generators I see the difference in the two is actually quite small ...

Understood. Although flight plan programs and FSX weather add-ons may download the same NOAA forecast data, both may apply that data slightly differently in their respective own code, leading to slight disagreements between flight plan programs and FSX weather add-ons.

But such disagreements won't affect the PSX side.

PSX won't get data from FSX weather add-ons.

PSX will get NOAA forecast data. Typically, this NOAA forecast data will be copied from a flight plan text. Not from an FSX weather add-on.

Using my new edit feature in PSX, a special wind & OAT data corridor can be designed (if desired) by editing data tables on a special text screen on the Instructor. The displayed data will be directly applied to the internal weather model using a corridor embedded in the planet weather model (if desired).

This means, the internal weather model will exactly agree with the data displayed on the screen -- as long as the "randomize" slider is set to "minimum". That's why the slider is important.

FSX weather add-ons may be used for visual weather effects in FSX.
They won't be required for data injections into PSX.


Regards,

|-|ardy


Off-topic question: When a random generated gust occurs in an FSX weather scenario at a networked VATSIM location, will this gust hit all VATSIM aircraft at that location at the same time? Or will each aircraft simulation use a different gust event randomization?
« Last edit: Wed, 17 Oct 2018 21:13 by Hardy Heinlin »

Jeroen Hoppenbrouwers

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Re: Winds aloft injection -- just an idea ...
« Reply #111 on: Wed, 17 Oct 2018 23:14 »
Off-topic question: When a random generated gust occurs in an FSX weather scenario at a networked VATSIM location, will this gust hit all VATSIM aircraft at that location at the same time? Or will each aircraft simulation use a different gust event randomization?
The VATSIM system contains winds and yes, a gust is broadcasted over all aircraft. However, I doubt whether any VATSIM client nowadays does anything at all with these winds. I presume everybody just injects "real weather" which means METARs which means random gusts.

Hoppie
not having looked at VATSIM data streams for about 15 years...

G-CIVA

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Re: Winds aloft injection -- just an idea ...
« Reply #112 on: Thu, 18 Oct 2018 01:00 »
No misunderstanding at this end Hardy.

Off-topic question: When a random generated gust occurs in an FSX weather scenario at a networked VATSIM location, will this gust hit all VATSIM aircraft at that location at the same time? Or will each aircraft simulation use a different gust event randomization?

Short answer - no.

The beauty of the PSX WX environment 'overriding' any FSX/p3D WX engine injection below 20000ft is that PSX properly interpolates turbulence & gust events from the WX source PSX downloads from whereas FSX/p3D WX engines often do not.

I always fly online & I can site countless occasions where I have seen 'MOD TURB BLW 5000' or 'MOD WS ALL RWYS' - in METAR reports, I have reported such back to online ATC after having experienced such events & have sometimes had to conduct missed approaches.

Those simmers flying FS products totally within the FSX/p3D environment at the same point in time & space as me did not experience or encounter such WX events using FSX/p3D WX engines, with VATSIM WX enabled or or if using 'native' FSX/p3D downloadable WX.
Steve Bell
aka The CC