Cosmo,
As we mostly use are aircraft to go from A to B, we are worried about how much fuel we comsume while traveling a particular distance, not how much we use per hour.
Fuel consumption is measured in units of fluid volume or mass as in how many Litres or Kilogramswe use. Whether we then want to know at what Rate that consumption happens, bee it per unit of time or distance is a seperate calculation.
Therefore we are most interested in max range, which can be calculated by using CI=0.
Last edited by Wizofoz; 18th May 2012 at 01:37.