From Halopedia, the Halo wiki
162 metres (530 ft)
Shaw-Fujikawa Translight Engine
Resistant to several Pulse Laser Bursts
Battle of New Harmony
The UNSC Razor's Edge was a Prowler of the United Nations Space Command. It was part of the Battle of New Harmony in 2537. During the battle, they managed to attach a telemetry probe to a retreating Covenant frigate. They then followed the frigate through Slipspace and discovered K7-49.