This sight automatically locks on to the enemy. In this mode, the missile will home in on the enemy plane and blast it from the air. However, enemy aircraft can escape your missiles even when you are locked on. If you let them leave the game screen, or if the enemy is too close when you fire, the missiles will pass them by. When you reach a designated refueling sight, a Naval fuel tanker will wing in above you.
Refueling takes eight seconds.
Failing to dock will result in loss of the bonus points, although you'll still be able to fly and fight. You receive higher bonus scores when you shoot down a Flying Fortress. They are your toughest opponent. You can't shoot them down with the Vulcan cannon. The best strategy for attack is to aim for the missile pylons, which are hidden in three places under the wings.