Cold Altitude Correction
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Cold Altitude Correction
Do you use Cold Altitude Correction for VFR and for the circuit ?
Re: Cold Altitude Correction
You use cold altitude corrections any time terrain clearance is critical. VFR you should never be that close to terrain without good visibility but I suppose at night you could throw it in to determine your minimum enroute altitudes.
Re: Cold Altitude Correction
For the hemisphere rule for altitudes for direction of flight, you absolutely must not apply a cold weather correction.
DId you hear the one about the jurisprudence fetishist? He got off on a technicality.
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Re: Cold Altitude Correction
Do I personally use it? No.apex190 wrote:Do you use Cold Altitude Correction for VFR and for the circuit ?
It only should be used for minimum IFR altitudes. Even then it's still not required, although a really smart idea.
Re: Cold Altitude Correction
I agree. Plus cold weather corrections are based on local temperature from a known elevation above ground which you do not know enroute. If terrain clearance is a concern just add 1000' to your cruise altitude if you're able. If not just don't hit the ground because you're supposed to be VFR anyway.photofly wrote:For the hemisphere rule for altitudes for direction of flight, you absolutely must not apply a cold weather correction.
Re: Cold Altitude Correction
In the circuit, if your altimeter setting comes from the airport at which the circuit is being flown, then the cold weather correction will be small. Since there isn't a fixed or mandatory altitude for circuits anyway nobody will care whether you correct for temperature, or most likely even notice.
In any situation, if given an altitude restriction by ATC, this must be obeyed as an indicated altitude and not corrected. If that gives you terrain clearance issues then maintain safe flight and advise ATC you are unable to comply.
In any situation, if given an altitude restriction by ATC, this must be obeyed as an indicated altitude and not corrected. If that gives you terrain clearance issues then maintain safe flight and advise ATC you are unable to comply.
2000'. But the rule doesn't apply until 3000agl and there are no man made obstacles that tall, so complying with the cruising altitude rule should not be a concern at the same time as terrain clearance. If worried about terrain clearance you can pick any altitude up to an indicated 3000' agl.If terrain clearance is a concern just add 1000' to your cruise altitude if you're able.
DId you hear the one about the jurisprudence fetishist? He got off on a technicality.
Re: Cold Altitude Correction
Some food for thought straight from the flight test guide:
When aerodrome temperatures are 0ºC or colder, candidates are expected to apply the altitude
corrections published in the CAP - General to all minimum altitudes depicted on the approach chart
used
--Air to Ground Chemical Transfer Technician turned 4 Bar Switch Flicker and Flap Operator--
Re: Cold Altitude Correction
The OP may not be aware that the flight test guide which you quote is for the instrument rating flight test and not relevant to his question about VFR, and circuits.
DId you hear the one about the jurisprudence fetishist? He got off on a technicality.
Re: Cold Altitude Correction
Whoops, I read that one wrong. All this IFR studying "V's" look like "I's". .photofly wrote:The OP may not be aware that the flight test guide which you quote is for the instrument rating flight test and not relevant to his question about VFR, and circuits.
--Air to Ground Chemical Transfer Technician turned 4 Bar Switch Flicker and Flap Operator--
Re: Cold Altitude Correction
what surprises me is that the FAA doesn't seem to place the same importance on correcting IFR minimum altitudes as TC. There's plenty of cold weather in parts of the US.
DId you hear the one about the jurisprudence fetishist? He got off on a technicality.
Re: Cold Altitude Correction
I think they changed that recently, so now it is mandatory for certain airports:photofly wrote:what surprises me is that the FAA doesn't seem to place the same importance on correcting IFR minimum altitudes as TC. There's plenty of cold weather in parts of the US.
http://www.aopa.org/News-and-Video/All- ... Pilot/t_mm
It does seem strange that it used to be optional.
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Re: Cold Altitude Correction
In Canada it's optional for instrument approaches as well. The CAP GEN uses the word should and not shall. Thus, legally speaking, it is a suggestion and compliance is not mandatory. Although it is a very good idea.
Re: Cold Altitude Correction
So a pilot can't fail a IFR ride if he doesn't use Cold Altitude Correction?
- oldncold
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Re: Cold Altitude Correction
here is another one to consider atc provides alt correction in terminal areas where there is radar coverage and on appproaches however if you accept vfr visual approach say on a ils you lose that correction factor at that point. point 2 if you do a contact approach and lose the runway enviroment and iniate a missed you now have no corrected cold wx correction .
example > if you are doing an ifr ride at -20c and dont brief the correction for the procedure turn, faf, and mins, depending on the examiner and how sticky they wish to be you have now pooched your ride .
cld wx corection one of my fav's to ask when newbies blow thru approach briefings in winter months // learned that from a longtime selkirk college instructor where cold wx correction and -30 really do mean your life cycg
example > if you are doing an ifr ride at -20c and dont brief the correction for the procedure turn, faf, and mins, depending on the examiner and how sticky they wish to be you have now pooched your ride .
cld wx corection one of my fav's to ask when newbies blow thru approach briefings in winter months // learned that from a longtime selkirk college instructor where cold wx correction and -30 really do mean your life cycg
Re: Cold Altitude Correction
I believe this exact thing came up at the tribunal but I forget the exact circumstances... and the outcome.apex190 wrote:So a pilot can't fail a IFR ride if he doesn't use Cold Altitude Correction?
Re: Cold Altitude Correction
Flight test standards are not the same thing as minimum legal standards at all. You can fail a flight test for missing all sorts of things that aren't "mandatory" in a general sense.
DId you hear the one about the jurisprudence fetishist? He got off on a technicality.
Re: Cold Altitude Correction
For exactly what rational reason would you NOT correct for cold temperature?! It is sometimes quite significant...
Going for the deck at corner
Re: Cold Altitude Correction
i know someone who failed their IFR because they did not correct in a VFR circuit.
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Re: Cold Altitude Correction
To answer the original post, no you do not. Vfr circuit altitude isn't that Big of a deal... . Looks like the thread got hijacked by some IFR types...
Re: Cold Altitude Correction
The answer is no. It is that "should" vs. "shall" thing. This was pointed out at my last Check Pilot course in YOW. I will admit that I had thought it could be a fail item up until then...apex190 wrote:So a pilot can't fail a IFR ride if he doesn't use Cold Altitude Correction?
Apparently the wording is going to be change but lord knows how long TC will take to do that.