Private Pilot for Rotorcraft Category Helicopter Rating › I. Preflight Preparation › Task G. Operation of Systems

PH.I.G.K1e

Knowledge

Helicopter systems, including:

Fuel, oil, and hydraulic

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Pilot's Handbook of Aeronautical Knowledge p. 17-13
Chapter 17: Aeromedical Factors › Ground Lighting Illusions › Exposure to Chemicals
operations as stated in the Pilot's Operating Handbook. These fluids include, but are not limited to hydraulic fluid, engine oil, and fuel. It is important that every pilot recognize the potential hazards of working with these fluids as well…
Pilot's Handbook of Aeronautical Knowledge p. G-28
Glossary › Pilot’s Operating Handbook/Airplane Flight Manual
operating equipment that have fixed locations and are permanently installed in the airplane including fixed ballast, hydraulic fluid, unusable fuel, and full engine oil. Standard holding pattern. A holding pattern in which all turns are made to the right. Standard…
Pilot's Handbook of Aeronautical Knowledge p. 9-11
Chapter 9: Flight Manuals and Other Documents › Preventive Maintenance › Examples of Preventive Maintenance
setting of spark plug gap clearance; replacing any hose connection, except hydraulic connections; however, prefabricated fuel lines may be replaced. Cleaning or replacing fuel and oil strainers or filter elements; servicing batteries, cleaning balloon burner pilot and main nozzles…
Pilot's Handbook of Aeronautical Knowledge p. 3-11
Chapter 3: Aircraft Construction › Subcomponents › Lightning Strike Protection
Fluid Spills on Composites Some owners are concerned about fuel, oil, or hydraulic fluid spills on composite surfaces. These are generally not a problem with modern composites using epoxy resin. Usually, if the spill does not attack the paint ... will not hurt the underlying composite. Some aircraft use fiberglass fuel tanks, for example, in which the fuel rides directly against the composite surface with no sealant being used. If the fiberglass structure is made with some of the more…
Pilot's Handbook of Aeronautical Knowledge p. 10-5
Chapter 10: Weight and Balance › Control › Terms and Definitions
operating equipment that have fixed locations and are permanently installed in the aircraft, including fixed ballast, hydraulic fluid, unusable fuel, and full engine oil. • Standard weights—established weights for numerous items involved in weight and balance computations. These weights should…
Helicopter Flying Handbook p. 6-2
Chapter 6: Weight and Balance › Weight
basic empty weight. This is the weight of the standard helicopter, optional equipment, unusable fuel, and all operating fluids including engine and transmission oil, and hydraulic fluid for those aircraft so equipped. Some helicopters might use the term “licensed empty…