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James Nugent   26th Feb 2010 19:04:17 | Just wanted to clear a few things up regarding atc.
When you're cleared on to a Stand by ATC, there is no need to call for shutdown. This is not done for real. Only (push and) Start is asked for. You ask for push and start because you're and entering what the Surface Movements Controller (SMC) i.e. ground controls. When you're departing from an aerodrome that is not controlled, or flying in airspace in which you are not talking to atc, you squawk the following.. IFR traffic - 2000 VFR traffic - 7000 In actual fact, the only time you squawk 1200 is vfr flying in the usa! Winds or 'wind checks' are given to aircraft with their t/o or landing clearance as well as their instruction to continue approach. If you are on ATC, always round the winds to the nearest 10 degrees, and if they are 3kts or less, report them as calm. if on approach and you want a wind update just say "Wind Check" on the fequency, no need to say you're callsign. VFR is allowed during night time but in controlled airspace only. If there's anything else to add, post it here James :) |
Harry Tarling  26th Feb 2010 19:10:58 | Yeh nice post James :D
Some good info. If we all followed it it would be much more realistic. And i know sometimes i get dragged into 'Engine shutdown' picked it up from other pilots. |
| James Nugent 26th Feb 2010 19:15:28 | Thanks Harry :) |
Fatih Aydogduoglu  27th Feb 2010 00:03:28 | You are the man! Thanks for the useful info. |
Richard Stuchfield  27th Feb 2010 00:14:58 | Where is all the info from James? I agree with most of it but wind is only described as calm when 1kt or lower. Using the phrase "less than 5 kts" is ok though. A pilot can always request the actual speed if they need it
There is no requirement to round wind up to nearest 10 degrees. Why not give it as acurately as possible?. Requesting shutdown is the most annoying one from a personal point of view. It's not required in the UK but most people ask for it - maybe in US it is required - not sure. |
Victor Finstad 27th Feb 2010 15:49:40 | ATC is to provide info which is relevant for pilots and their flight. Wind below 5 kts is not relevant for most modern aircrafts, and therefore announced as "wind calm". Feel fre to calculate this in your FMC if you want...
This may differ from airport to airport though, as terrain and certain meteorological conditions(i.e. windshear) are different. Bottom line: Aerodrome senior ATC develops a local SOP, which ATCs are to follow regarding this. |
| Mick McG 27th Feb 2010 21:57:14 | H'o guys,
According to the UK MATS Pt 1, the tower controller will normally pass surface wind as a 2 minute average. (Sect 2 Ch1 para 12.1 "When a pilot requests the instantaneous surface wind, the word "instant" is to be inserted to indicate that the wind being reported is not the two minute average"). As a TWR controller I've never rounded the wind up to the nearest 10kts; maybe to the nearest 10 degrees. 5kts wind speed or below isn't normally marked off on the wind dial (unless you've got one of the new digital displays) so it's a judgement call if your using the old analog dials. If it's flat calm then I'd say " wind calm", if it's wobbling around a bit then "wind light and variable" is a useful phrase or maybe "wind (direction), less than 5" whichever is more appropriate. One other thing; James said that, "VFR is allowed during night time but in controlled airspace only". That's not quite right. In actual fact the ANO states that; "In the UK an aircraft flying at night shall: a) be flown in accordance with the Instrument Flight rules outside a control zone; b) be flown in accordance with the Instrument Flight Rules in a control zone unless it is flying on a Special VFR flight. So it's only flight in Control Zones that permit SVFR at night. I promise I'm not being pedantic, it's just that I'm currently converting my mil license at a UK college of ATC knowledge and we've just covered this in our air law exam! Trust me, I'd rather not know this rubbish but as someone mentioned it.... Right then, back to studying - just two weeks to go on this course then a short break then 12 weeks on the next one. Wish me luck! M |
| Richard Stuchfield 28th Feb 2010 13:28:41 | Thanks for that Mick.
My MATS pt 1 is way out of date and up in the attic somewhere now. Victor, please don't keep posting that any wind below 5knts is expressed as calm. We've already had this argument. The fact that it doesn't have any discernable effect on a commercial jet doesn't meant that it's 'calm' With respect to SVFR, in addition to what Mick says, the cloud base must not be below 600' and the visiblity must not be below 1800m. Richard |
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