The Lycoming O-360 is a horizontally opposed, air-cooled, four-cylinder aircraft engine manufactured by Lycoming Engines. Introduced in 1955, it has become one of the most widely used aircraft engines in the world, powering a vast array of fixed-wing aircraft.
Cylinders: 4, horizontally opposed
Displacement: 360 cubic inches (5.9 liters)
Bore: 4.375 inches (111.1 mm)
Stroke: 3.75 inches (95.2 mm)
Compression Ratio: 8.5:1
Power Output: 145-200 horsepower
Weight: 245-275 pounds
The O-360's design incorporates a forged steel crankshaft, aluminum alloy cylinder heads, and cast iron cylinders. It features a single camshaft located in the crankcase, operating two valves per cylinder. The engine is equipped with a constant-speed propeller governor and a magneto ignition system.
The O-360 offers excellent performance and fuel efficiency. It produces a maximum continuous power output of 180 horsepower at 2,700 RPM. The engine has a specific fuel consumption of 0.55 pounds per horsepower per hour.
The Lycoming O-360 has been used in a wide variety of aircraft models, including:
The O-360 is certified by the Federal Aviation Administration (FAA) and meets the FAR 33 safety standards. The engine has an overhaul interval of 2,000 hours.
The O-360 requires regular maintenance and repair to ensure optimal performance and safety. Common maintenance tasks include:
The Lycoming O-360 is a reliable and efficient aircraft engine that has powered countless aircraft for decades. By understanding its specifications, performance, and maintenance requirements, you can ensure that your O-360 engine operates safely and effectively.
Table 1: Lycoming O-360 Variants
Variant | Power Output (hp) |
---|---|
O-360-A1A | 145 |
O-360-A1D | 160 |
O-360-A1F6 | 180 |
O-360-A2A | 180 |
O-360-A3A | 200 |
Table 2: Lycoming O-360 Performance Data
Parameter | Value |
---|---|
Maximum Continuous Power | 180 hp at 2,700 RPM |
Specific Fuel Consumption | 0.55 lb/hp-hr |
Oil Capacity | 8 quarts |
Coolant Capacity | 12 quarts |
Table 3: Lycoming O-360 Maintenance Intervals
Task | Interval |
---|---|
Oil Change | 50 hours |
Filter Change | 50 hours |
Spark Plug Inspection | 100 hours |
Valve Adjustment | 200 hours |
Overhaul Interval | 2,000 hours |
If you own or operate an aircraft powered by a Lycoming O-360 engine, it is essential to familiarize yourself with its operation, maintenance, and safety requirements. By following the tips and recommendations outlined in this guide, you can ensure that your O-360 engine provides you with years of reliable and efficient service.
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