The cost curve for a sophisticated product like this, any defence product, comes down with time as volume increases and learning occurs, but primarily because volume increases. We're building the airplanes at small production rates. Initially, we only had two airplanes in our first production lot. So we absorbed all the fixed costs of the infrastructure on those two airplanes. As we get to 200 airplanes a year, the incremental cost element of that infrastructure is shortened by that much.
So the cost comes down on a fairly steep curve. In the first three production lots, our price came down 50%, and primarily because the number of units going through was increasing.
We now have four production lots under contract, with the last one fixed price. Our cost curve is fairly well defined. Assuming the quantities stay about the same as they're planned to now, we'll continue down that cost curve, and we can project out in time the point at which Canada buys their airplanes. We know within a band...there's still a confidence band that we have to establish, but that confidence band is getting tighter. We do know that we are in the vicinity of what we're saying the airplane is going to cost and I think you've budgeted very adequately for the airplane.