B757 international cruise speeds

[BoilerUP]

For those of you who are flying 757s to max range across the NAT to and from Europe, what altitudes & cruise mach do you normally fly for the crossing (especially westbound)?

Thanks...

 

[ACL65PILOT]

We go to JFK-Germany right now. Normally anywhere from .78-.80.

 

[GogglesPisano]

Ususally faster westbound. :erm:

 

[Brett Hull]

What's Mmo on the 75/76 anyway? Heard ATC ask a United the other day how fast he could go and he answered .89. Only thing we figured it could be was a 757 since he wasn't using a Heavy callsign.

 

[mt2]

Crossings on the tracks are flown at constant mach. Almost always (99.9%) flown at M.80 by 757's. Altitude depends on weight but generally mid+ 30's.

 

[Plug]

What's Mmo on the 75/76 anyway? Heard ATC ask a United the other day how fast he could go and he answered .89. Only thing we figured it could be was a 757 since he wasn't using a Heavy callsign.

You are only required to use the "Heavy" designation with local and TRACON controllers not en route. However, the northeastern provinces of Canada use it. Where were you?

 

[Plug]

For those of you who are flying 757s to max range across the NAT to and from Europe, what altitudes & cruise mach do you normally fly for the crossing (especially westbound)?

Thanks...

Depends on a lot of factors. Here at CAL we stretch the capability of the aircraft with ARN, HAM, OSL, BCN. I have taken off from some of these places maxed out on gas (76,900#) and had to put the CI at 0 just to show FOD over 9,000#. This results in a cruise of .77 in the mid to upper 30's, hopefully NATS gets you the FL you need or else you're pinched. Eastbound is no problem.

 

[ACL65PILOT]

Depends on a lot of factors. Here at CAL we stretch the capability of the aircraft with ARN, HAM, OSL, BCN. I have taken off from some of these places maxed out on gas (76,900#) and had to put the CI at 0 just to show FOD over 9,000#. This results in a cruise of .77 in the mid to upper 30's, hopefully NATS gets you the FL you need or else you're pinched. Eastbound is no problem.

Agreed. We do destinations in Spain as well.

Normal NAT crossings are done at .78 or above for the 757/767. I have done 81 but we prefer to do 78/79.

 

[Plug]

Agreed. We do destinations in Spain as well.

Normal NAT crossings are done at .78 or above for the 757/767. I have done 81 but we prefer to do 78/79.

I've done .83 back from DUB , fat on gas and 3 hours late.

 

[wmuflyguy]

What's Mmo on the 75/76 anyway? Heard ATC ask a United the other day how fast he could go and he answered .89. Only thing we figured it could be was a 757 since he wasn't using a Heavy callsign.

possibly a 747?

 

[ultrarunner]

What's Mmo on the 75/76 anyway? Heard ATC ask a United the other day how fast he could go and he answered .89. Only thing we figured it could be was a 757 since he wasn't using a Heavy callsign.

Yep, 74. Forgot the mmo on it, .90?

 

[aa73]

75/76 MMO is .84. Must have been a UAL 747.

Regarding 757 fuel on the NATs... it gets pretty tight westbound in the winter. AA had the brilliant idea of switching JFK-BCN to a 757 in November. The very first three flights all diverted, followed by about 1 divert per week. They switched it back to a 763 by mid December.

 

[BoilerUP]

Thanks folks...figured 0.80M was the "normal" cruise (seems to be that way for bizjets) but with gas being tight coming west I didn't know if dispatch normally kept you 0.77-0.78 and if so, if that created any spacing issues on the tracks.

Can you tell I have exactly zero international experience?

 

[AA717driver]

Thanks folks...figured 0.80M was the "normal" cruise (seems to be that way for bizjets) but with gas being tight coming west I didn't know if dispatch normally kept you 0.77-0.78 and if so, if that created any spacing issues on the tracks.

Can you tell I have exactly zero international experience?

No one should have to learn about international from strangers. You could have just called me and asked.

TC

 

[Whataburger]

It might help that bizjets don't need to abide by ETOPS rules, so you might benefit from the fact that you can just point it east and let 'er rip. Barber Pole is recommended. Just stay above or below the tracks.