Germany is to to buy Northrop Grumman's high-altitude MQ-4C Triton unmanned surveillance aircraft. Announced by the German Ministry of Defence on Tuesday, the new drones will replace the Euro Hawk program. The number and cost of the Tritons have not yet been declared, however the deliveries are expected to begin in 2025. Triton, a marine-based variant of Northrop's Global Hawk surveillance drone, features a AN/ZPY-3 Multi-Function Active Sensor (MFAS) with active electronically scanned array (AESA) radar. The MQ-4C can stay aloft for over 24 hours at an altitude of 17 thousand meters at speeds of up to 610 km/h.