For the Chinook Foxtrot, the other consideration, environmentally, was self-defence. Although there was a basic suite available to the Foxtrot, the one we went to was the one that is equipped on our other platforms that are dealing with future threats, and the one that the Americans are going to retrofit to their Foxtrots in later years. It was important to do it right at the outset, which is less expensive than retrofitting. That's why we had to work with Boeing to make sure that the right kit was put on the airplane upfront instead of later.
