Key points of the use of aviation piston engines in flight training
The main points of the use of aviation piston engines in flight training are as follows:
First, understand the basic structure and principle of the engine
In flight training, first of all, students should fully understand the basic structure and principle of aviation piston engines. Aviation piston engine is usually composed of cylinder, piston, connecting rod, crankshaft, valve mechanism, ignition system, fuel system, lubrication system, cooling system and other components. Students need to master the function and workings of each component, and how they work together to generate thrust.
Key points:
Cylinder and piston: the cylinder is the place where the mixture burns, and the piston moves reciprocally in the cylinder to transfer the work done by the gas.
Connecting rod and crankshaft: Connecting rod connects the piston and crankshaft, converting the linear motion of the piston into the rotating motion of the crankshaft.
Valve mechanism: control the opening and closing of the valve to ensure that the fresh mixture enters the cylinder at the right time, and the exhaust gas after burning and doing work is discharged from the cylinder in a timely manner.
Ignition system: At the end of the compression stroke, an electric spark is generated through the spark plug to ignite the mixture.
Fuel system: Transfers fuel from the tank to the engine and mixes it with air to form a combustible mixture.
Lubrication system: Provides lubrication for engine components to reduce wear.
Cooling system: Keep the engine working within a suitable temperature range to prevent overheating.
Second, master the operation method of the engine
In flight training, students need to master the operation methods of aviation piston engines, including starting, running, adjusting and stopping.
Key points:
Start the engine: Start the engine according to the correct procedures, including checking the fuel, oil, cooling system, etc., to ensure that everything is normal, and start according to the engine manufacturer's recommendations.
Running the engine: During operation, it is necessary to monitor the parameters of the engine, such as speed, temperature, pressure, etc., to ensure that the engine works within the normal range.
Adjust the engine: According to the flight requirements and engine performance, adjust the throttle rod, mixture ratio and other parameters to obtain the best engine performance and fuel economy.
Stop the engine: Follow the correct procedure to stop the engine, including gradually reducing the throttle lever, turning off the fuel system, and waiting for the engine to stop completely before performing other operations.
Third, pay attention to the safe use of the engine
There are certain risks in the use of aviation piston engines, students need to master the correct safe use methods.
Key points:
Prevent overheating: Check the cooling system regularly to ensure that the coolant is sufficient, the radiator is clean, the fan is operating normally, etc., to prevent the engine from overheating.
Prevention of overspeed: To avoid the engine in excess of its design speed range, to prevent mechanical parts damage.
Prevent fuel leaks: Check the fuel system regularly to ensure there are no leaks and prevent fire and explosion accidents.
Prevent insufficient oil: Check the oil system regularly to ensure sufficient oil and good quality to prevent engine wear.
Fourth, understand the engine failure phenomenon and treatment methods
In flight training, students need to understand the possible failure phenomena and treatment methods of aviation piston engines.
Key points:
Fault phenomena: such as engine starting difficulty, unstable operation, high temperature, low oil pressure.
Treatment method: According to the fault phenomenon, combined with the working principle and structural characteristics of the engine, the preliminary diagnosis and treatment. If it cannot be handled, report it to the flight instructor or crew in time.
Fifth, develop good flying habits
Good flying habits are essential to ensure flight safety and the normal use of engines.
Key points:
Careful inspection: Before and after each flight, the engine is carefully inspected to ensure that everything is in order.
Reasonable operation: Operate the engine according to the correct procedures and methods to avoid rough operation.
Regular maintenance: Perform regular maintenance as recommended by the engine manufacturer to keep the engine in good condition.
Sixth, combined with the actual flight training
In flight training, the use of the engine should be combined with the actual flight training as far as possible.
Key points:
Simulated flight training: Conduct engine operation training on flight simulator to improve students' proficiency and ability to cope with emergencies.
Practical flight training: In the actual flight, let the students personally operate the engine, feel the working characteristics of the engine in different flight states.
Case analysis: Through the analysis of real flight accident cases, students can understand the serious consequences of engine failure and enhance safety awareness.
