Portland, Ore.-based Simplex Manufacturing has reached an agreement to produce a large internal water tank for the Boeing CH-47 Chinook. The water tank is part of the objective helicopter icing spray system (OHISS), which contains two components—a cloud characterization system based on the Sikorsky UH-60, and a cloud generation system that will replace the U.S. Army’s 35-year-old HISS. OHISS will be tested across military and civil helicopter platforms in both icing and heavy rain scenarios.
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