Brrrrrr... It's cold outside!

This forum has been developed to discuss aviation related topics.

Moderators: ahramin, sky's the limit, sepia, Sulako, lilfssister, North Shore, I WAS Birddog

Post Reply
Jet Jockey
Rank 4
Rank 4
Posts: 293
Joined: Sun Sep 22, 2013 8:42 am
Location: CYUL

Brrrrrr... It's cold outside!

Post by Jet Jockey » Tue Jan 22, 2019 4:43 am

Coldest I have ever seen it in my flying career so far. This was yesterday on our flight from London to Montreal over the Atlantic. Already in the climb out of EGGW passing FL320 the temperature was already -64C. At our initial cruise level (FL430) it had dropped to -75C and just past 30W after climbing to FL450 it dropped to -78C. It stayed at that temperature until just before coast in when we climbed to FL470 where initially it was a balmy -61C. Later on the temperature rose to -50C and our TAS increase substantially to 496kts.

Image
---------- ADS -----------
  

digits_
Rank 10
Rank 10
Posts: 2295
Joined: Mon Feb 14, 2011 2:26 am

Re: Brrrrrr... It's cold outside!

Post by digits_ » Tue Jan 22, 2019 8:19 pm

That's like -145 with the wind chill factor.
---------- ADS -----------
  

aeroncasuperchief
Rank 4
Rank 4
Posts: 257
Joined: Sat Jan 20, 2018 8:54 pm

Re: Brrrrrr... It's cold outside!

Post by aeroncasuperchief » Tue Jan 22, 2019 9:12 pm

Why the heck were you up to 47000 feet ? Are you one of the missing Concordes? LOL
---------- ADS -----------
  

aeroncasuperchief
Rank 4
Rank 4
Posts: 257
Joined: Sat Jan 20, 2018 8:54 pm

Re: Brrrrrr... It's cold outside!

Post by aeroncasuperchief » Tue Jan 22, 2019 9:13 pm

Hmmm, global COOLING We need carbon credits and more taxes to combat that !!!
---------- ADS -----------
  

User avatar
iflyforpie
Top Poster
Top Poster
Posts: 7778
Joined: Tue Apr 15, 2008 12:25 pm
Location: Winterfell...

Re: Brrrrrr... It's cold outside!

Post by iflyforpie » Tue Jan 22, 2019 10:54 pm

Had the OAT go from +5C to -25C inside of 2000 feet a couple weeks ago. That sure made the TAS and the Baro VNAV go bananas.
---------- ADS -----------
  
Geez did I say that....? Or just think it....?

User avatar
schnitzel2k3
Rank 8
Rank 8
Posts: 809
Joined: Sun May 15, 2011 11:17 pm

Re: Brrrrrr... It's cold outside!

Post by schnitzel2k3 » Wed Jan 23, 2019 12:12 am

iflyforpie wrote:
Tue Jan 22, 2019 10:54 pm
Had the OAT go from +5C to -25C inside of 2000 feet a couple weeks ago. That sure made the TAS and the Baro VNAV go bananas.
Beyond the automation, how was the ride?

S.
---------- ADS -----------
  

User avatar
iflyforpie
Top Poster
Top Poster
Posts: 7778
Joined: Tue Apr 15, 2008 12:25 pm
Location: Winterfell...

Re: Brrrrrr... It's cold outside!

Post by iflyforpie » Wed Jan 23, 2019 12:34 pm

A good jolt at the top of the inversion layer.
---------- ADS -----------
  
Geez did I say that....? Or just think it....?

Eric Janson
Rank 8
Rank 8
Posts: 817
Joined: Thu Feb 08, 2007 10:44 am

Re: Brrrrrr... It's cold outside!

Post by Eric Janson » Mon Feb 11, 2019 8:27 pm

Jet Jockey wrote:
Tue Jan 22, 2019 4:43 am
Coldest I have ever seen it in my flying career so far. This was yesterday on our flight from London to Montreal over the Atlantic. Already in the climb out of EGGW passing FL320 the temperature was already -64C. At our initial cruise level (FL430) it had dropped to -75C and just past 30W after climbing to FL450 it dropped to -78C. It stayed at that temperature until just before coast in when we climbed to FL470 where initially it was a balmy -61C. Later on the temperature rose to -50C and our TAS increase substantially to 496kts.
Those are pretty extreme temperatures!

No issues with fuel temperature? On my aircraft we have to transfer fuel if the fuel temp gets to -40c.
---------- ADS -----------
  
Always fly a stable approach - it's the only stability you'll find in this business

Mach1
Rank 6
Rank 6
Posts: 485
Joined: Wed Mar 03, 2004 9:04 am

Re: Brrrrrr... It's cold outside!

Post by Mach1 » Tue Feb 12, 2019 9:46 am

Oh no... did your fuel lines freeze due to climate change? https://www.youtube.com/watch?v=jWfX_k0pIN0
---------- ADS -----------
  
I'm going to knock this up a notch with my spice weasle. Bam!

Jet Jockey
Rank 4
Rank 4
Posts: 293
Joined: Sun Sep 22, 2013 8:42 am
Location: CYUL

Re: Brrrrrr... It's cold outside!

Post by Jet Jockey » Tue Feb 12, 2019 5:38 pm

Eric Janson wrote:
Mon Feb 11, 2019 8:27 pm
Jet Jockey wrote:
Tue Jan 22, 2019 4:43 am
Coldest I have ever seen it in my flying career so far. This was yesterday on our flight from London to Montreal over the Atlantic. Already in the climb out of EGGW passing FL320 the temperature was already -64C. At our initial cruise level (FL430) it had dropped to -75C and just past 30W after climbing to FL450 it dropped to -78C. It stayed at that temperature until just before coast in when we climbed to FL470 where initially it was a balmy -61C. Later on the temperature rose to -50C and our TAS increase substantially to 496kts.
Those are pretty extreme temperatures!

No issues with fuel temperature? On my aircraft we have to transfer fuel if the fuel temp gets to -40c.
No... Our aircraft re-circulated heated fuel from the engines to the tanks. IIRC, the fuel temps never went below -18C.
---------- ADS -----------
  

User avatar
MarkyMark90
Rank 3
Rank 3
Posts: 101
Joined: Wed Sep 07, 2016 4:55 pm
Location: Instructing at 4500 ft

Re: Brrrrrr... It's cold outside!

Post by MarkyMark90 » Tue Feb 12, 2019 5:41 pm

Jet Jockey wrote:
Tue Jan 22, 2019 4:43 am
Already in the climb out of EGGW [...] to Montreal
Luton to Montreal? :o
---------- ADS -----------
  
My dream is to fly... Over the rainbow, so high!!

Jet Jockey
Rank 4
Rank 4
Posts: 293
Joined: Sun Sep 22, 2013 8:42 am
Location: CYUL

Re: Brrrrrr... It's cold outside!

Post by Jet Jockey » Tue Feb 12, 2019 5:43 pm

MarkyMark90 wrote:
Tue Feb 12, 2019 5:41 pm
Jet Jockey wrote:
Tue Jan 22, 2019 4:43 am
Already in the climb out of EGGW [...] to Montreal
Luton to Montreal? :o
Yes.
---------- ADS -----------
  

User avatar
MarkyMark90
Rank 3
Rank 3
Posts: 101
Joined: Wed Sep 07, 2016 4:55 pm
Location: Instructing at 4500 ft

Re: Brrrrrr... It's cold outside!

Post by MarkyMark90 » Tue Feb 12, 2019 5:49 pm

Jet Jockey wrote:
Tue Feb 12, 2019 5:43 pm
MarkyMark90 wrote:
Tue Feb 12, 2019 5:41 pm
Jet Jockey wrote:
Tue Jan 22, 2019 4:43 am
Already in the climb out of EGGW [...] to Montreal
Luton to Montreal? :o
Yes.
Which airline flies from Luton to Montreal? :shock:
---------- ADS -----------
  
My dream is to fly... Over the rainbow, so high!!

goingnowherefast
Rank (9)
Rank (9)
Posts: 1650
Joined: Wed Mar 13, 2013 9:24 am

Re: Brrrrrr... It's cold outside!

Post by goingnowherefast » Tue Feb 12, 2019 6:06 pm

FL470 is pretty high for an airliner. I'm guessing corporate?
---------- ADS -----------
  

Post Reply

Return to “General Comments”