Complex sentence: Initially, the Terrier used radar beam-riding guidance, wing control, a conventional warhead, had a top speed of only Mach 1.8, and a range of only 10 nautical miles (19 km), and was only useful against subsonic targets.
Split into simpler sentences: Initially, the Terrier used radar beam-riding guidance, wing control, and a conventional warhead. It had a top speed of only Mach 1.8, a range of only 10 nautical miles (19 km), and was only useful against subsonic targets.