Battle of Britain

When bombing with a Stuka, fly at an altitude of 5 feet above the ground with your landing gear out (to prevent crashing), and just when you're about to crash into your target, drop your bombs, pull back on the mouse or joystick and raise your gear.

You should have destroyed your target.

This sounds difficult, but once you get the hang of it, it's fun ! (Information from Cheat Machine)