What fuel does a sr-71 use?

The SR-71 Blackbird primarily used JP-7, a hydrocarbon-based jet fuel specifically formulated for its high-speed and high-altitude operations. JP-7 had several desirable properties, including a low freezing point, high thermal stability, and a high energy density. It also had a higher flash point compared to conventional jet fuels, reducing the risk of fire and explosion during refueling and ground operations. Additionally, JP-7 was specially formulated to minimize its environmental impact, particularly in terms of reducing exhaust emissions and smoke trails, which were important considerations for a strategic reconnaissance aircraft designed to operate at high altitudes and avoid detection.