getting to grips with the cost index(36)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

195  312/.773  308/.778  302/.780  289/.780  286/.780  286/.780  286/.780  291/.792 
190  311/.770  307/.776  302/.780  289/.780  286/.780  286/.780  286/.780  286/.780 
185  310/.768  306/.774  302/.780  289/.780  286/.780  286/.780  286/.780  286/.780 
180  309/.765  305/.771  301/.777  289/.780  286/.780  286/.780  286/.780  286/.780 
175  307/.761  304/.769  300/.775  289/.780  286/.780  286/.780  286/.780  286/.780  296/.805 
170  305/.757  302/.766  299/.772  289/.780  286/.780  286/.780  286/.780  286/.780  292/.796 
165  303/.753  301 /.762  298/.770  289/.780  286/.780  286/.780  286/.780  286/.780  289/.787 
160  301/.748  299/.758  296/.766  289/.780  286/.780  286/.780  286/.780  286/.780  286/.780 

A320 / A330 / A340 Families – Optimum Mach Number
The following appendix exemplifies how the Optimum Mach Number is presented in FCOM tables versus cost index (0, 100, 200, 300, 400, 500kg/min) altitude and wind as calculated by the FMGC. The examples here pertain to the A340-313E and are found in FCOM 3.05.15 pages 1 thru 5.
Cruise tables are established :
- for ISA, ISA + 10, ISA + 15 and ISA + 20
- with normal air conditioning and anti-ice off
- 
from FL 290 to FL 410 at M 0.80, 0.82 and 0.84

- 
from FL 100 to FL 410 at long range speed

- with a 30% center of gravity below 2500ft and a 37% center of gravity at higher altitudes.

Table 46. Optimum Mach Number

COST INDEX = 0 (MAXIMUM RANGE)  COST INDEX = 100 KG/MIN 
FLIGHT LEVEL  FLIGHT LEVEL 
Weight/wind 1000 kg/(kt)  310  330  350  370  390  410  Weight/wind 1000 kg/(kt)  310  330  350  370  390  410 
150  100.  .631  .661  .693  .721  .747  .771  150  100.  .766  .782  .795  .804  .811  .814 
50.  .649  .678  .708  .734  .757  .776  50.  .777  .790  .801  .809  .814  .816 
0.  .673  .700  .726  .749  .768  .783  0.  .786  .797  .807  .813  .816  .818 
-50.  .696  720  .743  .763  .779  .791  -50.  .795  .804  .811  .816  .819  .821 
-100.  .725  .745  .764  .779  .791  .799  -100.  .802  .810  .816  .820  .823  .823 
　
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