c5load
Topic Author
Posts: 344
Joined: Tue Sep 16, 2008 9:40 pm

Largest Hour To Cycle Ratio On A Single Airplane?

Sat Feb 12, 2011 6:03 pm

Up until a few years ago, I would have assumed the 744, but with the A380, 77L, and the 77W making longer flights, what are some of the hour to cycle ratios for these airplanes? If we could forecast to the time of retirement, what do you think these airplanes' numbers will look like?
"But this airplane has 4 engines, it's an entirely different kind of flying! Altogether"
 
roseflyer
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Joined: Fri Feb 13, 2004 9:34 am

RE: Largest Hour To Cycle Ratio On A Single Airplane?

Sat Feb 12, 2011 6:09 pm

Well it all depends on airline, but some rough numbers that I have seen are

DC9 1hr per cycle
737 Classic 1.3 hrs per cycle
737NG 2hrs per cycle
747 8 hrs per cycle
757 2.5 hrs per cycle
777 6.5 hrs per cycle

While the 777 has the longest range, there are a lot of airlines operating them on shorter routes, especially within Asia which brings down the average hours. The 747 though is still rarely used on the shorter flights, so it on average has longer routes.
If you have never designed an airplane part before, let the real designers do the work!
 
tdscanuck
Posts: 8572
Joined: Wed Jan 11, 2006 7:25 am

RE: Largest Hour To Cycle Ratio On A Single Airplane?

Sat Feb 12, 2011 7:39 pm

Quoting RoseFlyer (Reply 1):
DC9 1hr per cycle
737 Classic 1.3 hrs per cycle
737NG 2hrs per cycle
747 8 hrs per cycle
757 2.5 hrs per cycle
777 6.5 hrs per cycle

That's a shade on the high side for the last 12 month average, but pretty close.

Tom.
 
c5load
Topic Author
Posts: 344
Joined: Tue Sep 16, 2008 9:40 pm

RE: Largest Hour To Cycle Ratio On A Single Airplane?

Sat Feb 12, 2011 8:03 pm

Quoting RoseFlyer (Reply 1):
While the 777 has the longest range, there are a lot of airlines operating them on shorter routes, especially within Asia which brings down the average hours.

What about say, Emirates and their 77L and 77W that makes the daily DXB-LAX segment? That plane is going to rank up some pretty high hours fast.
"But this airplane has 4 engines, it's an entirely different kind of flying! Altogether"

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