Pressure At Work
Flying behind air-cooled powerplants, free of radiators or coolant tanks, it’s easy to forget most aircraft still need liquids of some type to operate safely and reliably. When those fluids are put under pressure to actuate a mechanism, we’ve created a hydraulic system, sometimes defined as something “using pressurized fluid to drive machinery or move mechanical components.” It also can be defined as transferring “energy by pressurizing fluid to force movement of a slave to produce the action sought.”