The Lycoming AEIO-580 is a high-performance, fuel-injected, horizontally opposed, six-cylinder aircraft engine designed for general aviation applications. It is part of Lycoming's "Angle Valve" engine series, which is known for its robust construction and high power output.

Part Number

Key Specifications

• Engine Type: 6-cylinder, horizontally opposed (flat-six), air-cooled, four-stroke
• Displacement: 580 cubic inches (9.5 liters)
• Power Output: Typically around 315 horsepower (235 kW) at 2,700 RPM
• Compression Ratio: 8.5:1
• Fuel System: Precision fuel injection (Bendix RSA fuel injection system)
• Ignition System: Dual magnetos for redundancy
• Weight: Approximately 400 lbs (181 kg) dry weight
• Cooling: Air-cooled with baffling for efficient cylinder cooling
• Propeller Drive: Direct drive (non-geared)

Applications

The AEIO-580 is commonly used in high-performance experimental, aerobatic, and utility aircraft. Some notable aircraft that use this engine include:

• Zivko Edge 540: A popular aerobatic aircraft
• Pitts Special S-12: A high-performance biplane
• Lancair Legacy: A fast, experimental kit-built aircraft

Performance Considerations

• The AEIO-580 is known for its high power-to-weight ratio, making it ideal for aerobatic and high-performance aircraft.
• It provides excellent throttle response and reliability, which are critical for aerobatic maneuvers.
• Pilots and operators must adhere to strict maintenance schedules to ensure optimal performance and safety.

Variants

Lycoming produces several variants of the AEIO-580, including:

• AEIO-580-B1A: A common variant used in aerobatic and experimental aircraft.
• IO-580: A non-aerobatic version with similar specifications but not certified for unlimited aerobatics.

The Lycoming AEIO-580 is a powerful and reliable engine that has earned a strong reputation in the aviation community, particularly among aerobatic pilots and builders of high-performance experimental aircraft. Its combination of power, durability, and precision engineering makes it a top choice for demanding aviation applications.