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Author Topic: Cold weather ops  (Read 721 times)

Will

  • Join date: May 2009
  • Location: Chicago
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Cold weather ops
« on: Wed, 27 Dec 2017 16:10 »
It's -20 C here this morning... Which makes for a fairly brutal commute. I walk about a mile to get to the train, and then another half-mile to get to my office. So it's challenging.

One thing I notice is that the jets landing overhead sound louder and crisper when the temperature falls so low. I could be making it up, but I think it's real. Perhaps the denser air does a better job of transmitting the high-frequency noises from the engines.

Stay warm, everyone!
Will /Chicago /USA

Jeroen Hoppenbrouwers

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  • Location: KTMB
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  • Hoppie designs SATCOM equipment for airliners.
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Re: Cold weather ops
« Reply #1 on: Thu, 28 Dec 2017 00:25 »
Stay warm, everyone!

Sure.

Code: [Select]
KTMB 272353Z 03004KT 10SM OVC080 23/19 A3017

Just sat outside in shirt sleeves watching a chicken toasting... glass of wine... no ice required for a change...


Hoppie

emerydc8

  • Join date: Jun 2015
  • Location: Tucson, AZ USA
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Re: Cold weather ops
« Reply #2 on: Thu, 28 Dec 2017 18:34 »
I just landed in KORD yesterday morning and it was painfully cold. I was grateful that the FOs here have to do the post-flight walk-arounds. Not sure about the noise, but with the cold usually comes patches of ice and the thought that maybe a flaps 30 landing would be better than flaps 25, especially when they are landing on 27L/R. We came in on 28C because we were too heavy for 27L.

Jeroen Hoppenbrouwers

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Re: Cold weather ops
« Reply #3 on: Wed, 3 Jan 2018 23:04 »
Seeing the temp drop quickly here now. We expect to go from just under 20C to just above 0C overnight.

It felt totally like the Netherlands at lunchtime... cold, wet, windy, overcast. A welcome departure from the usual hot, wet, bright steam oven. For a few days.

Hang on there in the North East...


Hoppie

Phil Bunch

  • Join date: May 2009
  • Posts: 1149
Re: Cold weather ops
« Reply #4 on: Thu, 4 Jan 2018 20:03 »
Today is the day for a major snow storm in SW Maine where I live (near KPWM).  We seem to more or less be at the center of its effects...

So far, I believe that the press is exaggerating the severity of this storm in that I've experienced many winter storms that were *much* harder to cope with (so far).  My biggest concern is losing electrical power, but so far the state's power company is not reporting many outages.  I would feel much differently if I had to drive in this weather, mostly because of the "white out" conditions - visibility is now about 50 feet or less.  Night driving would be a nightmare.

Fortunately, I'm retired and don't need to get out.  Also, we have a whole house backup generator, fueled by propane and it doesn't much affect us if we lose power.  Unfortunately, with fine snow and high winds, snow may enter the generator's vent louvers and block the generator's rotor, shutting the thing down until the snow is cleared from the disassembled system.  Fortunately, the generator's computer knows when the rotor is locked and it will not operate with this fault.  It also sends me an email announcing the problem.  It has an iPad- or PC-based app that allows the owner to evaluate many system parameters and error logs, etc. 

Some new internet-based features are actually useful, but it is a little weird to get emails from one's backup home generator!

===============
Here's the official US national weather service Blizzard Warning for my area:

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...

* WHAT...Blizzard conditions occurring. Travel will be very
  dangerous to impossible, including during the evening commute.
  Tree branches could fall as well. Additional snow
  accumulations of 13 to 17 inches are expected.

* WHERE...Portions of central and southern New Hampshire and,
  south central and southwest Maine.

* WHEN...Until 4 AM EST Friday.

* ADDITIONAL DETAILS...Winds gusting as high as 50 mph will
  cause whiteout conditions in blowing snow. Significant
  drifting of the snow is likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel extremely dangerous. Do not travel. If
you must travel, have a winter survival kit with you.  If you get
stranded, stay with your vehicle. For a more precise forecast for
your specific location...go to www.weather.gov/gray.



Best wishes,

Phil Bunch

Will

  • Join date: May 2009
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Re: Cold weather ops
« Reply #5 on: Fri, 5 Jan 2018 16:39 »
1 degree F again this morning... (-17 C)... brrrrr.....
Will /Chicago /USA

Jeroen Hoppenbrouwers

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Re: Cold weather ops
« Reply #6 on: Sat, 6 Jan 2018 00:44 »
In the Netherlands we say "de mussen vallen van het dak" when it is hot in Summer, but now in Florida the iguanas drop out of the trees because of the cold...

Hoppie

ScudRunner

  • Join date: Apr 2013
  • Location: YBBN
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Re: Cold weather ops
« Reply #7 on: Sat, 6 Jan 2018 23:42 »
While we're on this subject...

Came across this video while reviewing cold weather operating procedures a few days ago.  Shows de-icing trials on a Virgin Atlantic 747 with engines running. Hopefully of interest. 

https://vimeo.com/104245334

best
Scud

asboyd

  • Join date: Jan 2012
  • Location: YSSY
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Re: Cold weather ops
« Reply #8 on: Sun, 7 Jan 2018 22:03 »
A mere 45 C here in Blacktown (suburb of Sydney) yesterday....

Cold weather ops indeed..... :)

Cheers,