Which hydraulic fluid is approved for use in the Dassault Falcon 7X?

The Dassault Falcon 7X is designed to operate with hydraulic fluid that meets the specifications necessary for its performance and safety requirements. The correct answer is MIL-H-83282, which is a phosphate-ester based fluid. This type of hydraulic fluid offers a higher temperature performance and is less flammable compared to MIL-H-5606, which is a mineral oil-based fluid designed primarily for aviation purposes but does not meet the same high standards for fire resistance and temperature range.

While Skydrol is a commonly used aviation hydraulic fluid, it is not typically listed for the Falcon 7X. ATF Type IV is intended for automotive applications and lacks the necessary characteristics suitable for aircraft hydraulic systems. The specifications and performance aspects of MIL-H-83282 make it the most appropriate choice for the Falcon 7X, ensuring optimal performance and safety in hydraulic systems during operation.