Speer describes the Me 262 project, flying wing jet planes, a remote-controlled flying bomb, a rocket plane, a rocket missile based on infrared homing, designs for a four-motored jet bomber with the range to strike New York, and a torpedo based on sonar. He also cites the use of the V-2 as a terror weapon, rather than continued development of the ground-to-air defensive Waterfall rocket.[1]:488–498,569