a320fan
Topic Author
Posts: 558
Joined: Fri May 01, 2009 5:04 am

E-Jet Operational Temperature

Sat Feb 09, 2013 2:13 pm

I have heard a rumor that E-Jets can only operate in temperatures below 35 degrees C. Is this true? If so what do operators do if the temp is above 35. I know that Virgin Australia flies E-jet aircraft into MQL and AYQ where temperature's are very often above this "limit" as well as the large capital city airports of SYD , BNE, MEL, PER and other's during summer months exceeding this often. Surely an airline wouldn't put up with an aircraft that cannot fly in commonly crossed conditions in there operation. I don't believe this rumor and I cannot remember where I heard it from. I thought I would put it out to the A.net experts for clarification.
Airliners flowen in: 737-700, 737-800, A320, A321, 777-300ER, 777-200ER, 777-300, 787-8, A330-200, Q300
 
ThePinnacleKid
Posts: 497
Joined: Wed Feb 23, 2005 9:47 am

RE: E-Jet Operational Temperature

Sat Feb 09, 2013 2:42 pm

I imagine that it is (like a lot of airliners)..

ISA + 35.

The ERJ-145 series is limited at that, can't imagine the 170/190's being other than that.
"Sonny, did we land? or were we shot down?"
 
a320fan
Topic Author
Posts: 558
Joined: Fri May 01, 2009 5:04 am

RE: E-Jet Operational Temperature

Sat Feb 09, 2013 2:55 pm

Quoting ThePinnacleKid (Reply 1):

I imagine that it is (like a lot of airliners)..

ISA + 35.

Ah, That makes a lot more sense, Thankyou.
Airliners flowen in: 737-700, 737-800, A320, A321, 777-300ER, 777-200ER, 777-300, 787-8, A330-200, Q300
 
pilotpip
Posts: 2830
Joined: Fri Sep 19, 2003 3:26 pm

RE: E-Jet Operational Temperature

Sat Feb 09, 2013 4:13 pm

Quoting ThePinnacleKid (Reply 1):
The ERJ-145 series is limited at that, can't imagine the 170/190's being other than that.

Same for the 170.
DMI
 
loggat
Posts: 431
Joined: Sat Feb 12, 2000 11:34 am

RE: E-Jet Operational Temperature

Sat Feb 16, 2013 2:48 pm

The 170 can T/O and Land in heat up to ISA+35C. Pressure altitudes -1000ft to +8000ft (E190 can go to +10000ft). T/O and Land cold limit is -40C. In flight cold limit is -54C up to 25000ft, and then linearly to -62C at 36000ft, holding at -62C all the way up to 41,000ft.
There are 3 types of people in this world, those that can count, and those that can't.
 
AF1624
Posts: 498
Joined: Wed Jul 12, 2006 6:57 am

RE: E-Jet Operational Temperature

Sun Feb 17, 2013 12:09 pm

On a more general note, what elements of the aircraft will fail if these temperatures are exceeded?

I would guess the engines, being that they have temperatures in the 3-5 hundreds of degrees C, would not be affected by such "small" variations of temperature (well, apart of course from thrust being affected)? So what else?
Cheers
 
loggat
Posts: 431
Joined: Sat Feb 12, 2000 11:34 am

RE: E-Jet Operational Temperature

Sun Feb 17, 2013 4:58 pm

Well, as for my airline, in the US we generally will use Jet A fuel which has a gelling point of around -40C, so I'm guessing that our -40C T/O/LDG cold limit is a precaution to prevent fuel feed problems during critical phases of flight. In Canada, we usually get Jet A1 which has a gelling point of around -50C. As for the other limits, there are better experts than me on this board.
There are 3 types of people in this world, those that can count, and those that can't.
 
Fabo
Posts: 1154
Joined: Tue Aug 16, 2005 1:30 am

RE: E-Jet Operational Temperature

Mon Feb 18, 2013 2:38 pm

Quoting AF1624 (Reply 5):
On a more general note, what elements of the aircraft will fail if these temperatures are exceeded?

I would guess the engines, being that they have temperatures in the 3-5 hundreds of degrees C, would not be affected by such "small" variations of temperature (well, apart of course from thrust being affected)? So what else?

I would say it is not a question of "something will fail" but rather "it is not worth bothering to certify".
The light at the end of tunnel turn out to be a lighted sing saying NO EXIT
 
Viscount724
Posts: 19315
Joined: Thu Oct 12, 2006 7:32 pm

RE: E-Jet Operational Temperature

Tue Feb 19, 2013 1:57 am

Quoting loggat (Reply 4):
The 170 can T/O and Land in heat up to ISA+35C. Pressure altitudes -1000ft to +8000ft (E190 can go to +10000ft). T/O and Land cold limit is -40C. In flight cold limit is -54C up to 25000ft, and then linearly to -62C at 36000ft, holding at -62C all the way up to 41,000ft.

AC had to cancel some flights operated by Jazz CRJ-200s in 2008 when temperatures at Yellowknife (YZF) in Canada's Northwest Territories dropped below -40C for several days (not unusual). Carriers using 737s kept operating normally.
http://www.cbc.ca/news/canada/north/story/2008/01/29/cold-jazz.html
 
loggat
Posts: 431
Joined: Sat Feb 12, 2000 11:34 am

RE: E-Jet Operational Temperature

Tue Feb 19, 2013 5:12 am

We've had planes stranded in YEG for a couple of days due to the -40C. Luckily, I wasn't on the stranded crew either time.
There are 3 types of people in this world, those that can count, and those that can't.

Who is online

Users browsing this forum: No registered users and 1 guest

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos