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Demonstrate a Low Biochemical Oxygen Demand Aircraft Deicing Fluid

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Technical Report,01 Sep 2009,01 Mar 2013

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Air Force Materiel Command Wright Patterson AFB United States

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Aircraft deicing fluids are required to remove frozen precipitation from aircraft prior to flight, ensuring mission capability in winter conditions. The primary component in conventional fluids is propylene glycol PG, which can exhibit a high biochemical oxygen demand BOD when it degrades. The aim of this demonstration was to investigate whether one reduced PG aircraft deicing fluid, EcoFlo and later EcoFlo II, was effective at deicing aircraft while having no negative effects on flight performance, operational safety and aircraft materials. Evaluation included laboratory testing for compatibility with military aircraft materials, wind tunnel testing for fluid residue concerns blurring windowsoptical ports and leaving slippery surfaces, and an aircraft demonstration for effective and safe removal of frozen precipitation. The demonstration indicated that residue issues are still an obstruction to implementation and further reformulation and improvement must be considered.

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