Press Release touts KC-45 efficiency

Northrop Grumman released a press release on the efficiency of their aircraft, strategically called the KC-45, versus the Boeing 767 tanker. It states that using the formula the USAF developed their aircraft more efficiently delivers fuel then the 767. Boeing, claims Northrop Grumman, had to create their own formula to get a favorable result. If you think about it, the ability to carry more fuel to a certain distance will make up for the fact that you burn more gas to get there. If the requirement is 50K of fuel at 1000 nm range then starting with more fuel will give you more fuel at that range, assuming your airplane has similarly efficient engines. The GAO ruling on the protest should be interesting, and cannot come too soon.