AP.I.A.K4
KnowledgeFuel system–capacity, drains, pumps, controls, indicators, cross-feeding, transferring, jettison, fuel grade, color and additives, fueling and defueling procedures, and fuel substitutions (if applicable).
From the FAA library
- Chapter 7: Aircraft Systems › Fuel Systems › Gravity-Feed System
Gravity-Feed System The gravity-feed system utilizes the force of gravity to transfer the fuel from the tanks to the engine. For example, on high-wing airplanes, the fuel tanks are installed in the wings. This places ... fuel tanks above the carburetor, and the fuel is gravity fed through the system and into the carburetor. If the design of the aircraft is such that gravity cannot be used to transfer fuel, fuel pumps…
- Chapter 7: Aircraft Systems › Carburetor Air Temperature Gauge › Fuel Injection Systems
also equipped with an outside air temperature (OAT) gauge calibrated in both degrees Figure 7-13. Fuel injection system. Celsius and Fahrenheit. It provides the outside or ambient air temperature for calculating true airspeed and is useful in detecting ... potential icing conditions. Fuel Injection Systems In a fuel injection system, the fuel is injected directly into the cylinders, or just ahead of the intake valve. The air intake for the fuel injection system is similar…
- Chapter 6: Flight Controls › Flight Control Systems › Primary Flight Controls
Flight Control Systems Flight Controls Aircraft flight control systems consist of primary and secondary systems. The ailerons, elevator (or stabilator), and rudder constitute the primary control system and are required to control an aircraft safely during flight. Wing flaps, leading ... edge devices, spoilers, and trim systems constitute the secondary control system and improve the performance characteristics of the airplane or relieve the pilot of excessive control forces. Primary Flight Controls Aircraft control systems are carefully designed to provide adequate responsiveness…
- Chapter 7: Aircraft Systems › Fuel Systems › Fuel Strainers, Sumps, and Drains
unbalanced fuel load between tanks. Running a tank completely dry may allow air to enter the fuel system and cause vapor lock, which makes it difficult to restart the engine. On fuel-injected engines, the fuel ... allowing fuel to reach the cylinders. Figure 7-31. Fuel selector valve. Fuel Strainers, Sumps, and Drains After leaving the fuel tank and before it enters the carburetor, the fuel passes through a strainer that…
- Chapter 7: Aircraft Systems › Fuel Systems › Fuel Grades
water is present in the sump, more water in the fuel tanks is probable, and they should be drained until there is no evidence of water. Never take off until all water and contaminants have been removed from ... engine fuel system. Because of the variation in fuel systems, become thoroughly familiar with the systems that apply to the aircraft being flown. Consult the AFM/POH for specific operating procedures. Fuel Grades Aviation gasoline (AVGAS) is identified…
- Chapter 7: Aircraft Systems › Oil Systems
Systems The engine oil system performs several important functions: • Lubrication of the engine’s moving parts • Cooling of the engine by reducing friction • Removing heat from the cylinders • Providing a seal between the cylinder walls and pistons • Carrying away contaminants ... Figure 7-17. Wet-sump oil system. Reciprocating engines use either a wet-sump or a dry-sump oil system. In a wet-sump system, the oil is located in a sump that is an integral part of the engine…