Zycraft Pte. Ltd. (Zycraft) hsaid it completed Phase 1 development of the Vigilant Class Independent Unmanned Surface Vessel. A lead vessel named the LongRunner has already completed over 24 months of inwater testing in Singapore waters and traveled a total of 2000 nautical miles. During this period, the vessel also participated in several Fleet Battle Experiments and demonstrated continuous unmanned operations exceeding 48 hours and traveled 100 nautical miles into the South China Sea.