What is the primary source of hydraulic power for EHAs on the 787?

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Prepare for the Boeing 787 KSV Test. Utilize interactive flashcards and multiple-choice questions, each offering insightful hints and explanations. Gear up efficiently for your certification exam!

Multiple Choice

What is the primary source of hydraulic power for EHAs on the 787?

Explanation:
EHAs are Electro-Hydrostatic Actuators that get their power from the Electrical Hydraulic Power System. In the 787, electric power drives pumps that create high-pressure hydraulic fluid, which directly feeds the EHAs. This means hydraulic energy is produced by electric motors rather than by bleed air or engine-driven pumps. The result is a highly electrically driven architecture where hydraulic power for actuation is generated by electrical power converted to hydraulic power through electric hydraulic pumps.

EHAs are Electro-Hydrostatic Actuators that get their power from the Electrical Hydraulic Power System. In the 787, electric power drives pumps that create high-pressure hydraulic fluid, which directly feeds the EHAs. This means hydraulic energy is produced by electric motors rather than by bleed air or engine-driven pumps. The result is a highly electrically driven architecture where hydraulic power for actuation is generated by electrical power converted to hydraulic power through electric hydraulic pumps.

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