Fuels meant for supersonic aircraft. Their low freezing point of −53.9°C makes them suitable for cold climates and high-altitude use. It is a wide-cut kerosene. JP-7 was used in the Lockheed SR-71 aircraft. JP-6 and JP-7 have thermal stability. JP-6 is popularly known as a “heart-cut distillate.”

Aviation dictionary. 2014.

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