We are, of course, watching the weight of the ship very closely. We should all appreciate that we're still in the design process, which means that as the original Type 26 design is being built and they have more certainty around the weight that's required for that ship—and we pull that weight through to our design—we're able to manage that.
Because we're still in the design process, we're also still looking at ways to mitigate any sort of weight change and through-life weight that the ship might require. As we go through these design processes, we'll be able to model what the effect will be on speed, and then after we've built the first one to see for real what that actually means.
It is something that we're watching very closely.