Moderators: richierich, ua900, PanAm_DC10, hOMSaR

 
Mir
Topic Author
Posts: 19491
Joined: Mon Jan 05, 2004 3:55 am

European TAF Question

Sat Jul 04, 2009 9:34 am

LFPG 040500Z 0406/0512 VRB02KT CAVOK
BECMG 0408/0410 SCT030
BECMG 0415/0417 CAVOK
BECMG 0504/0506 20006KT BKN015 TX27/0415Z
TN17/0504Z

Two questions:

1) I know what CAVOK implies, but what is the technical definition for what would qualify as CAVOK?

2) What does the TX27/0415Z TN17/0504Z mean? Might it be the high and low temperature with the associated times?

-Mir
7 billion, one nation, imagination...it's a beautiful day
 
wilco737
Posts: 7275
Joined: Sun Jun 20, 2004 12:21 am

RE: European TAF Question

Sat Jul 04, 2009 9:36 am



Quoting Mir (Thread starter):
1) I know what CAVOK implies, but what is the technical definition for what would qualify as CAVOK

IIRC from flightschool: no clouds below 5000' AGL and visibility more than 10km.

Quoting Mir (Thread starter):
2) What does the TX27/0415Z TN17/0504Z mean? Might it be the high and low temperature with the associated times?

Correct.

wilco737
 
zappbrannigan
Posts: 231
Joined: Wed Oct 01, 2008 7:41 am

RE: European TAF Question

Mon Jul 06, 2009 6:25 am



Quoting Mir (Thread starter):
I know what CAVOK implies, but what is the technical definition for what would qualify as CAVOK?

It stands for Ceiling and Visibility OK (if you didn't know that) - I don't know if the definition changes subtely around the world - here in Australia, it's no cloud below 5000' AGL and no CB cloud, visibility >10km, and no other significant weather phenomena (such as dust devils etc.). From memory this is within a 5nm radius of the aerodrome, but I may be imagining that bit.
 
DescendVia
Posts: 141
Joined: Sun Jan 18, 2009 4:26 am

RE: European TAF Question

Mon Jul 06, 2009 2:36 pm



Quoting Zappbrannigan (Reply 2):
From memory this is within a 5nm radius of the aerodrome, but I may be imagining that bit.

Sorta, its 5 SM. Here is the states the TAF blanks all airports within 5 statue miles and I assume its the same for worldwide standardization.
 
Mir
Topic Author
Posts: 19491
Joined: Mon Jan 05, 2004 3:55 am

RE: European TAF Question

Tue Jul 07, 2009 3:27 pm



Quoting WILCO737 (Reply 1):
Correct.

Useful stuff, that. I'm surprised the US doesn't have it.

-Mir
7 billion, one nation, imagination...it's a beautiful day
 
wilco737
Posts: 7275
Joined: Sun Jun 20, 2004 12:21 am

RE: European TAF Question

Tue Jul 07, 2009 3:43 pm



Quoting Mir (Reply 4):
Useful stuff, that. I'm surprised the US doesn't have it.

It is indeed helpful if huge changes in temperature are to be expected. Then you can check earlier if you will be performance restricted or not.

wilco737
 
User avatar
glen
Posts: 361
Joined: Thu Jun 30, 2005 4:43 pm

RE: European TAF Question

Tue Jul 07, 2009 10:56 pm



Quoting WILCO737 (Reply 1):
no clouds below 5000' AGL



Quoting Zappbrannigan (Reply 2):
it's no cloud below 5000' AGL

It is no clouds below 5000' AGL or highest MSA (Minimum Sector Altitude) if higher.
"The horizon of many people is a circle with zero radius which they call their point of view." - Albert Einstein

Who is online

Users browsing this forum: HowardDGA and 26 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos