Hey guys,

 

I was just curious as to if real world operators change the cruise speed of the NG. Now that question seems pretty vague, so let me use an example. When I fly the NGX, I use a Cost Index of 65 - which is a little high, but gas prices in the sim are much lower than that in the real world. With a higher CI, does my cruise speed increase too? My typical cruise speed right now is M.79 and I was wondering if that changes with CI, or if in real life operators of the NG go into the CRZ page and change the cruise speed to let's say M.81 or so - to get to their destination faster.

 

Is it standard to leave it be at M.79?

 

Thanks :)

The standard Cost index for the likes of Ryanair is 80

 

There is something for you to work around

 

Ryanair will usually fly to about 37000 ft to places like spain and corfu .. of course places like Germany are about 24000 ft below and ireland is about 15000 depends on weather and traffic/.

Your Mach will vary directly with you CI and directly with your headwind and probably other factors. It's not a fixed number.

 

If you increase your CI for a given atmosphere, your Mach will increase. You can change it by manually in the FMC or MCP.

Okay thanks guys. What is the maximum cruise speed of the 737NG? Preferably in Mach lol :)

Well when I fly on the -700 at FL 380/390 is at 0.78 with a MMO of .82, and a CI of 20. CL is .73 again with a MMO .82 service ceiling of 370. ;-)

I think it is mach .82 but don't hold me for it, someone here probably has verified data

I think it is mach .82 but don't hold me for it, someone here probably has verified data

 

Hehe Levkov just look above ;-) Just beat you by a minute. :-P

Hehe Levkov just look above ;-) Just beat you by a minute. :-P

 

Yeah, I realized that :) It was even less than a minute because I saw your post the same second I clicked post so you posted at 08:36:59 and me at 08:37:00.

Haha lol, one sec spread nice. :-P

Awesome. Thank you guys so much! :)

The standard Cost index for the likes of Ryanair is 80

 

Pretty sure the CI for Ryanair isn't 80, I think for the last few months its been 31

I know SAS uses a CI of 6 on european flights.

Anyone know what a typical WestJet CI would be? I'm Canadian so that's the airline I fly the NGX with :P

Found this on another post, I'm sure the poster doesn't mind us borrowing the information.

 

Air Berlin

• 30
  

Air Canada

• B767s :100
  

Air France

• Short/medium haul flight : 35
  
• La Navette (France) : 250
  
• Longhaul : 45
  
• Delayed shorthaul : 250
  
• Delayed longhaul : 135
  

Air Malta

• B737 CI: 25
  

Air New Zealand

• B767: 45
  

Austrian

• 35
  

British Airways Airbus Fleet:

• A319/A320/A321
  
  • Climb at: Cost Index 0
    
  • Cruise at Cost Index 20
    

Boeing Fleet:

• Boeing 737-300/400 and 500 Series
  
  • Climb at: Cost Index 0
    
  • Cruise at Cost Index 28
    

• Boeing 747-400
  
  • Climb at: Cost Index 0
    
  • Cruise at Cost Index 90
    

Cost Index 0 (Sometimes used on East Coast USA to UK Flights and less often on UK to Singapore/Bangkok flights)

• Boeing 757-200 and Boeing 767-300
  
  • Climb at: Cost Index 0
    
  • Cruise at Cost Index 40
    

• Boeing 777-200
  
  • Climb at: Cost Index 0
    
  • Cruise at Cost Index 100
    

Cost Index 0 (Sometimes used on East Coast USA to UK Flights) British Midland

• 40
  

Cathay

• B744 CI:80
  

China Airlines

• 85 (Nur B747)
  

Condor

• Boeing 767-300ER: 30
  
• Boeing 757: 18
  

EasyJet

• Airbus A319 Cost Index: 12
  
• Airbus A320 Cost Index: 12
  
• Airbus A321 Cost Index: 23
  

EL AL

• 737's: 15-30
  
• 747's: 39(short/mid haul- Europe)757's: 20-40
  
• 767's: 30-45(30-40 for Europe, 40-45 long haul)
  
• 777's: 71(long haul, ex KLAX)
  

Emirates

• Airbus A330-200 Cost Index: 25
  

FlyGlobespan

• Boeing 737-700 Cost Index: 14
  
• Boeing 737-800 Cost Index: 13
  

FlyNiki

• 35
  

Hamburg International

• Airbus A319: 40
  
• Boeing 737-700: 30
  

KLM

• F70/100 Climb/Cruise : 30/15
  
• 737 Climb/Cruise : 30/15
  
• A330 Climb/Cruise/Descend : 60/150(300)/30
  
• MD11 Climb/Cruise/Descend : 50/100/20
  
• 777 Climb/Cruise/Descend : 50/100/20
  
• 747 Climb/Cruise/Descend : 150/300/50
  

Lufthansa

• Airbusse: 30
  
• Boeing 747-400: 70
  
• Airbus A300-600: 35
  
• Boeing 737-300: 25
  

Lufthansa Cargo

• 80
  

Luxair

• 50
  

Nordavia

• Boeing 737-500 CI-27
  

NordStar Airlines (??????)

• B737 NG: CI 30
  

Qantas

• B744 CI: 100
  
• Cost Index 40 for domestic flights
  
• Cost Index 20 for most International plans, however they may be planned up to CI250 to meet schedule/duty limits
  

Ryanair

• Boeing 737-800 Cost Index: 30
  

S7

• 30
  

SAS

• 45-50
  

Singapore Airlines

• B747/B777 CI:150
  

Skyexpress Russia

• B737CL
  
  • ?????????? = 28
    
  • ????????????? = 32
    

South African

• 50
  

Southwest Airlines

• 737-300/500 CI:28
  
• 737-700 CI:36
  

Swiss Airlines

• A32S:
  
  • FL290 and below: CI 10
    
  • above FL290: CI 20
    

• A330-200 and A340-300:
  
  • LRC: CI 30
    
  • M.082 Cruise: CI 30 for Climb/Descend and Cruise up to FL280, above M.082 manually edited
    
  • M.083 Cruise: CI 150 for Climb/Descend and Cruise up to FL290, above above M.083 manually edited
    

Thomson Airways

• Airbus A320 Cost Index: 13
  
• Airbus A321 Cost Index: 17
  
• Boeing 737-300 Cost Index: 10
  
• Boeing 737-800 Cost Index: 9
  
• Boeing 757-200 Cos Index: 10
  
• Boeing 767-300
  
• Long Haul Cost Index: 19
  
• Short Haul Cost Index: 11
  

Ukraine International Airlines

• cost index: 14
  
• B737 Classic: 19-20
  
• B737 NG: 28
  

United Airlines

• Flight with duration < 4 Hours:
  
  • A319 and A320 = Cost Index 27
    
  • B737-300 and B737-500 = Cost Index 35
    
  • B747-400 = Cost Index 90
    
  • B757-200 = Cost Index 80
    
  • B767-300 = Cost Index 65
    
  • B777-200 = Cost Index 85
    

• Flights with duration > 4 Hours:
  
  • A319 and A320 = Cost Index 22
    
  • B737-300 and B737-500 = Cost Index 30
    
  • B747-400 = Cost Index 85
    
  • B757-200 = Cost Index 75
    
  • B767-300 = Cost Index 60
    
  • B777-200 = Cost Index 80
    

Virgin Atlantic

• A340-300 CI = 30
  
• A340-600 CI = 40
  
• B747-400 CI = 73 - 93
  
• B747 :150
  

Westjet

• B737NG :20-25
  

That table contains a lot of garbage data. Generally higher cost indexes than what the airliners use. Most use a CI less than 10 these days.