English: From World War II, the unmanned V-1 flew in a straight linet while his primitive guidance system counted up to a pre-determined number of small propeller turns at the nose tip, and then dropped from the skies.

How to defend against this? Fly an intercept plane to bump it wing-to-wing, so it flies in a straight line, but off-course. See below for an action shot.

The FZG 76 designation is for the "V-1 Cruise Missile" as found in the Smithsonian NASM: "The V-1 (Vergeltungswaffe Eins, or Vengeance Weapon One), was the world's first operational cruise missile. Powered by a simple but noisy pulsejet that earned it the Allied nicknames of "buzz bomb" and "doodle bug," more than 20,000 were launched at British and continental targets, mostly London and Antwerp, from June 1944 to March 1945. It carried a one-ton, high-explosive warhead and had a range of about 240 km (150 miles) but was very inaccurate."