B-737NG Cruise speed
Join Date: Jan 2006
Location: In a far better place
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Depends on cost index, wind component, cruise altitude, gross weight, and TAT. Higher weights, I've seen slightly greater than 785, and lower weights 76 plus or minus.
We used to fly ours regularly at M.815/320kts on six leg days with 25 minute turnarounds. The only concession was to enter .8 on the climb page. Fortunately those days are passed. However it is still pretty common to be flying faster than cost index which in our case is below 20.
Join Date: Apr 2008
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I had never heard of cost index before!
....... Don't use them C172's! (except perhaps Vwallet)
Useful document here http://www.boeing.com/commercial/aer...7_article5.pdf
....... Don't use them C172's! (except perhaps Vwallet)
Useful document here http://www.boeing.com/commercial/aer...7_article5.pdf
