Steambirds: Survival

In the Steambirds universe, the Allies are losing the war against the Axis powers and their incredible Armada. As an elite Allied pilot, your goal is to stand your ground against endless waves of Axis aircraft. The odds are overwhelming. You're hopelessly outnumbered. The United Kingdom is almost certainly doomed, but you *might* be able to save its citizens.... if you can hold off death long enou...