Thank you, sir.
I think with respect to the cost of acquisition, this is a complicated area where there are many different definitions. I think that in some cases this is just a question of comparing apples and oranges, unfortunately.
Again, the numbers we've seen from DND represent what we see as something called unit fly-away cost, which is usually the lowest number generally provided with this plane. I think those are the numbers in the range of $70 million to low-$80 million coming out of the selected acquisition reports.
The number you also referred to, in the range of $138 million a plane, is something called the average procurement unit cost. It includes different elements of costs. It's a more fulsome kind of cost. I was thinking about this. If I say to my wife that I want to buy a brand-new BMW motorcycle, and the price at the top of the sheet is $15,000, but when I walk away it's going to cost $20,000, but I only tell her it's $15,000, it's a bit of a problem.
So it is important, I think, going forward, which I think is the spirit of your questions, that we come to a common definition. If the average procurement unit cost seems to be the common definition used for a procurement basis in the United States, and we can get comfortable with that, I think, for the secretary going forward, we would all benefit. But to start, it's an apples and oranges question.
On your other point, about the cost of flying and the different costs, certainly coming out of the latest SAR, with respect to the F-35 having a higher operating and support cost per hour, I think this highlights the importance, in a full life-cycle model, of including the full operating and support costs. But certainly the models, which are parametric models, used by the project office to provide these estimates suggest higher costs for the F-35 on an operating and support basis.
Perhaps Mr. Khan could just add quickly to that.