CH.II.C.K3
KnowledgeLimitations associated with starting.
From the FAA library
- Chapter 7: Aircraft Systems › Electrical System
Associated electrical wiring Engine-driven alternators or generators supply electric current to the electrical system. They also maintain a sufficient electrical charge in the battery. Electrical energy stored in a battery provides a source of electrical power for starting ... engine and a limited supply of electrical power for use in the event the alternator or generator fails. Most DC generators do not produce a sufficient amount of electrical current at low engine rpm to operate the entire electrical system…
- Chapter 7: Aircraft Systems › Ignition System
With RIGHT or LEFT selected, only the associated magneto is activated. The system operates on both magnetos when BOTH is selected. A malfunctioning ignition system can be identified during the pretakeoff check by observing the decrease in rpm that occurs ... engine stops running when switched to one magneto or if the rpm drop exceeds the allowable limit, do not fly the aircraft until the problem is corrected. The cause could be fouled plugs, broken or shorted wires between the magneto…
- Chapter 5: Rotorcraft Flight Manual › Operating Limitations (Section 2) › Rotor Limitations
Altitude Limitations If the rotorcraft has a maximum operating density altitude (see page 7-2), it is indicated in this section of the flight manual. Sometimes the maximum altitude varies based on different gross weights. Rotor Limitations Low rpm does ... produce sufficient lift, and high rpm may cause structural damage, therefore rotor rpm limitations have minimum and maximum values. A green arc depicts the normal operating range with red lines showing the minimum and maximum limits. [Figure 5-3] There…
- Chapter 7: Aircraft Systems › Starting System
starter engages the aircraft flywheel, rotating the engine at a speed that allows the engine to start and maintain operation. Electrical power for starting is usually supplied by an onboard battery, but can also be supplied by external power through ... starter switch draw current from the main bus bar, but the starter will not operate until the starting solenoid is energized by the starter switch being turned to the “start” position. When the starter switch is released from the “start…
- Chapter 5: Rotorcraft Flight Manual › Operating Limitations (Section 2) › Powerplant Limitations
Powerplant Limitations The powerplant limitations area describes operating limitations on the helicopter’s engine including such items as rpm range, power limitations, operating temperatures, and fuel and oil requirements. Most turbine engines and some reciprocating engines have a maximum power ... maximum continuous power rating. The “maximum power” rating is the maximum power the engine can generate and is usually limited by time. The maximum power range is depicted by a yellow arc on the engine power instruments, with…
- Chapter 4: Helicopter Components, Sections, and Systems › Dual Tachometers › Clutch
rotor must be disconnected from the engine when the starter is engaged. A clutch allows the engine to be started and then gradually pick up the load of the rotor. Figure 4-20. The main rotor transmission reduces engine output ... coupling between the gas producer turbine and the power (takeoff) turbine functions as an air clutch for starting purposes. When the engine is started, there is little resistance from the power turbine. This enables the gasproducer turbine to accelerate…