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Questions and Answers
Which type of system is commonly used in large aircraft?
What is the purpose of using hydraulic pressure in aircraft brakes?
What is the relationship between pressure, force, and area in a hydraulic system?
What happens when air cannot be evacuated from hydraulic lines?
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According to Pascal's Law, what happens to the pressure exerted on a fluid in an enclosed container?
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Study Notes
Aircraft Hydraulic Systems
- Hydraulic systems are commonly used in large aircraft.
- Hydraulic pressure is used in aircraft brakes to produce the force necessary to stop the aircraft.
- Pascal's Law states that pressure applied to an enclosed fluid is transmitted undiminished to all points within the fluid and to the walls of the container.
- Pressure, force, and area are related by the formula: Pressure = Force / Area
- This means that a small force applied to a small area can create a large force on a larger area.
- Air trapped in hydraulic lines can create air pockets, which can reduce the effectiveness of the hydraulic system and cause problems, such as:
- Reduced brake effectiveness
- Erratic actuation of other hydraulically operated components
- System damage
- Air must be completely evacuated from hydraulic lines for the system to function properly.
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Description
Test your knowledge on hydraulic and pneumatic systems in aircraft. Learn about the advantages of using hydraulic systems in large aircraft and the use of cables and pushrods in smaller aircraft. Explore the similarities between hydraulic and pneumatic systems.
