where:

 

image\INFO1299_wmf.gif

is the total number of mission segments.

 

image\INFO1300_wmf.gif

is the segment fuel fraction of the i'th segment.

 

image\INFO1301_wmf.gif

is the weight of fuel used in the mission (without reserves).

 

image\INFO1302_wmf.gif

is the aircraft take-off weight.

image\INFO1303_wmf.gif

is the expended payload weight of the i'th segment.

image\INFO1304_wmf.gif

is the refueled fuel weight of the i'th segment.