what is TX in a metar or TAF
 

found this question somewhere...

I think TX is maximum temp, and TN is minimum temp forecast. :8

Never seen it actually used (at least in the UK), but it is Max Temp.

This page is always good: http://aviation.weathersa.co.za/codesexpl.php

Commonly seen at a number of Mediterranean airfields, e.g.:

TAF LEBL 261700Z 270024 34010KT CAVOK
TEMPO 0024 FEW025 PROB30
TEMPO 0010 34015G25KT
BECMG 1214 20010KT
BECMG 1820 35010KT TX16/13Z TN08/06Z

Mostly seen in Spanish met.

Not in the abbreviations list on the Met office site. I shall pen it in on my copy.

Not sure if these links will work. You need a login (it is free)

abbreviations

TAF decode

METAR decode

Hi all,

I came across this one a few days ago, although it's todays, what does the RS0109KT 050209KT 230109KT Stand for?

LPMA 270000Z 03009G20KT 350V070 9999 SCT018 19/12 Q1023 RS0109KT 050209KT 230109KT
LPMA 262300Z 270009 03010KT 9999 SCT018
TEMPO 0009 03012G22KT SCT018 BKN030

Thanks!

These are some points were they are reporting the Winds. RS stands for Rosario.

LPMA is Funchal/Madeira. RS (Rosario) is about a mile short of the 05 threshold and sits at the end of a valley down which winds blow which can cause all sorts of chaos on short finals. 05 is the touch down anemometer for RWY05 and 23 is the same for RWY23. The main wind is the tower wind. The Portugese AIP has the detailed rules on the limits that apply for take-off and landing.

Although the runway is now quite long, LPMA remains one of the more challenging/fun airports to visit. Just think of it as an aircraft carrier moored alongside a big cliff and you get the idea:cool:.

Interesting. Thanks! :ok:

ATPL Air Law ICAO Articles & Annexes
 

Not that I'm work-shy, you understand......but is one expected to remember each of the Chicago Convention's articles & annexes, what each refers to and their implications?

And I thought the FREDA thing was tough!! :ooh:

You might one, maybe two if you're unlucky, questions asking which Annex number deals with .... whatever.

However, you are expected to know the contents and their implications (if not the number).

Cheers

Whirls

Table 20 ICAO Annexes
Annex
Subject
1
Personnel Licensing (Getting a license is my Number 1 priority)
2
Rules of the Air (2 Sets of Rules, VFR and IFR)
3
Meteorological Services (3ºC/100ft DALR)
4
Aeronautical Charts (4 Cardinal Points)
5
Dimensional Units (CRP 5)
6
Operation of Aircraft (DC6)
7
Nationality and Registration Marks (The League of Seven Nations)
8
Airworthiness (Looks like a propeller)
9
Facilitation (NEIN in German – Immigration)
10
Aeronautical Communications (100 for the Operator)
11
Air Traffic Control Services (1 to 1 Personal Services)
12
Search & Rescue (The one before Accident Investigation)
13
Accident Investigation (Unlucky for some)
14
Aerodromes (14 Aerodromes around Heathrow)
15
Aeronautical Information Services (Looks like IS)
16
Environmental Protection (16 Age of Consent, use protection)
17
Security (17ft security fence required)
18
Dangerous Goods (At 18 you can drink but it’s DANGEROUS to drive)

Oh by the way. this is not my brainchild but some earlier student from BGS.

g luck

gb

Thanks for that guys!

Any other memory aids? Like for example the chart specifications (Lambert etc)?

Air1980, PM sent. May be of help.

greekboy one correction. The DALR is 3ºC/1000ft OR 1ºC/100m.

Instrumentation (atpl questions)
 

Hi all,

Here are a few questions from oxford school regarding instrumenation which, actually, are not that hard but i prefer to ask for advise before submitting my assessment.
So enjoy it !

1) With a fully equipped FMS aircraft the following selections are usually utilised in flight :
a- LNAV only
b- LNAV and VNAV
c- VNAV only
d- LNAV and VNAV but not simultaneously

I'd answer d), cause if i have well understood lnav is used during cruise while vnav is more concerned with climb&descent, so the use of both modes cannot be simultaneous. Is that right?

2) If the radio altimeter fails :
a- height information disappears
b- aural warning given
c- radio alt flag, red lamp, and aural warning given
d- radio alt flag and red lamp activates

I'm quite hesitating between c) and d).

3) If an aircraft fitted with two FMSs, the pilots' displays show contradictory information. What mode of FMS is in use?
a- independant mode
b- dual mode
c- single mode
d- separate mode

Answer a) ?

Thanks guys!
:ok:

I would go with answer B to the first question. L-NAV and V-NAV are both used during most part of the flight.