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CFMU validation + altitude restriction


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Hello everybody !

First of all, I'm not English, so I'm sorry if I make a few mistakes !

I got this amazing software about a week ago.

I have analized the product in order to improve myself in making flight plans in accordance with CFMU rules (if IFPS applicable).

If I plan a flight between TFFR and LFPO, I got this route :

BOSE6W BOSET DCT 18N060W 27N050W 37N040W 44N030W 45N025W 47N020W 47N015W DCT SEPAL UN470 LAPEX UN471 NTS UN741 ANG UN482 NIMER

after using the last RAD (http://www.nm.eurocontrol.int/RAD/1501/docs/RAD%20ALL.pdf) to correct some errors of CFMU validation.

It remains one last error to correct in the CFMU validation which is :

PROF204 RS: TRAFFIC VIA ANG IS ON A FORBIDDEN ROUTE REF:[LF2798A] UN741 MOKOR ANG

Searching for LF2798 in the RAD, I read "Below FL345".
I observe that LF2798A doesn't exist in the RAD. I guess that the "A" (in PFPX CFMU Validation) means that there is a problem with the altitude.

So my question here is : How to correct this error, precising PFPX that the FL345 is the max for this part of route ? (in the route, from NTS to ANG)

Thank you for your explainations ! :)

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Don't be too critical of the speed entered although you'll probably know your cruising speed ;) it is required in the entry.

For your route to validate: UN471 OLEBA/N0477F340 UN471 NTS

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Ok yes it works !

I understand, the speed entered is not important ! It's just for the CFMU validation !

When the flight plan is validated, you can set the same FS restriction at the page Advance of the flight plan (where you can configure ETOPS) !

Thank you for your advice ! :D

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Please correct me in this case if I'm wrong, this is my explanation for the A.

LF2798A doesn't mean there's something wrong with the altitude, it's just a sub-category of the restriction, like a), b ), c).

In your specific case, the restriction is as following:

Only available for traffic
ARR Paris Group, LFOB
Below FL345

Where "ARR Paris Group, LFOB Below FL345" is one paragraph a).

Another example is LF2237

Only available for traffic:
1. Via TORTU.
2. ARR Ajaccio Group, Bastia Group, LIRP

where 1.) is seen as a) and 2.) as b ).

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Hello I am sorry to post again but I would like to know if the CFMU system is the only flight plan validation system ?

So when I get "not applicable to IFPS" message I can't know if my flight plan is correct....

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Hello,

In Europe (real world) all the FPLs, have to be submitted through CFMU / EUROCONTROL. Please find some informations here:

https://www.eurocontrol.int/articles/initial-flight-plan-ifpl-specification

It is not always easy to find a route and you have to check with every new AIRAC to see if your FPL complies. It does not say, when you are airborne, that you'll follow exactly that route and ATC, depending of the traffic, could re-route you and give you directs between WP.

In the virtual world, you do not need to have your FPLs approved but it is nice if it complies.

Regards,

JP

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Ok thanks for telling me this information ^^

I try to always validate my route if the CFMU is available ^^

So if pilots fly at the USA their flight plan is not approved... so it's easy to make one.., just optimised route or quick find route.... finished...

Otherwise I have another question !

Do you know a page which explaines the meaning of each word written on an Operational Flight Plan ?

For exemple the meaning of Release... TTL... etc. ?

I couldn't have all these information in detail in the manuel :/

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Hello,

In Europe (real world) all the FPLs, have to be submitted through CFMU / EUROCONTROL. Please find some informations here:

Is there something similar in all other parts of the world? I always wondered if my routes are correct but I didn't find a "CFMU" for other regions.

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Hum... a question again, ha ha....

What is the difference between :

2) grand circle distance. In nautical miles.

I think it's in fact the shortest (the direct) distance between the origin and the destination at the sea level ?

3) flight plan distance.

It's the flight plan distance at the sea level ?

4) air distance.

It's the flight plan distance at the flight levels planned for the flight ?

Can you confirm if it's correct ?

For a flight I have these values :

TTL G/C DIST: 3650 NM

TTL F/P DIST: 3691 NM

TTL AIR DIST: 3578 NM

AVG WIND CMP: TL015 KT

G/C and F/P makes sense... :)
However the AIR DISTANCE should be higher than the F/P distance according to my definition, isn't it ? So it seems that my definition are wrong... :/

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Great Circle Distance is the shortest distance between two airports. (forget about sea level, this has nothing to do with it)

Flight plan distance is your actual flight distance.

Air Distance is the distance you would need to fly to achieve the same flying time without the wind at standard cruise speed. For example, lets say your standard cruising speed is 450kts. Your flight plan distance is 4500nm and you're flying at 450kts plus 10kts tailwind (in average). So, your average speed is 460kts, therefore it would take 9hrs and 46min to get there. But without the wind, you'd need to fly 4395nm at 450kts (without the wind) to achieve the same flight time (450kts multiplied by the flight time 9h46min). You see, the air distance is shorter than the actual flight plan distance due to the tailwind. If you experience headwind during the flight, the air distance will be longer than the actual flight distance. I don't know whats the purpose of this information, but its a nice to have.

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Another question again ha ha !

I don't edit my previous post, I prefer posting a new one :)

How to know the radius of the circle to draw for ETOPS ?

For example in a Boeing FMS, at the page FIX, I set an ETOPS airport, but how to know the radius of the circle to set ?

:|

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I don't know whats the purpose of this information, but its a nice to have.

The air distance is the base for calculating the fuel needed for the trip - so it is more than "nice to have". Using PFPX as calculation tool releives us from using this info somewhat, but should the forecast wind change during the flight the matter is an entire different one.

Torben

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Ok great, another information, indeed it's useful :o

Now I am almost able to fully understand an OFP ^^

There is my question above about the radius of the ETOPS circle.

Then, another question !

Seeing this :

ONE ENGINE OUT ETP 1 FOR TFFR/LPLA N31 44.1 W048 54.6 EET 02:43
1EO84/320 DESC TO FL302 CRUISE AT 1EO320 543 NM BEFORE 3740N
We can see the coordinates of the equal time point and its position in comparison with the waypoint 3740N.
But I don't know how to understand the bold part :/
EO? :o ..... ? I think that it's obviously M.84 and FL320, descend to FL302 (rounded to FL300), but why, cruise at FL320... ?
Thanks for explainations :)
Sorry, I ask a lot of questions ^^... I want to understand as far as I can ^^
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"ETP to TFFR 1160nm" in the ETOPS part

I don't know if it's this value because this distance is from the ETP, not from one of the ETOPS airports... :/

Edit : It seems that for ETOPS 180, the radius is 1350NM :)

All questions are answered :)

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