Lycoming IO-540-AE1A5 Engine

The Lycoming IO-540-AE1A5 is a horizontally opposed, six-cylinder, air-cooled, fuel-injected aircraft engine commonly used in general aviation.

Prat Number

Specifications:

Engine Type: 6-cylinder, horizontally opposed (flat-six)

Displacement: 541.5 cubic inches (8.87 liters)

Power Output: 300 horsepower (224 kW) at 2,700 RPM

Compression Ratio: 8.7:1

Fuel System: Fuel injection (Continental Bendix RSA-5AD1 fuel injector)

Cooling System: Air-cooled

Weight: Approximately 390 lbs (177 kg) dry

Fuel Type: 100LL aviation gasoline (avgas)

Oil Capacity: 12 quarts (11.4 liters)

Key Features:

Fuel Injection: Provides better fuel efficiency and performance compared to carbureted engines.

Air-Cooled Design: Simplifies maintenance and reduces weight.

High Power-to-Weight Ratio: Makes it suitable for a variety of aircraft, including high-performance singles and light twins.

Reliability: Known for its durability and long service life with proper maintenance.

Applications:

The IO-540-AE1A5 is commonly found in aircraft such as:

Cessna 206 Stationair

Piper PA-32 Cherokee Six

Mooney M20K

Aerostar 600

Robinson R44

Maintenance and TBO:

TBO (Time Between Overhauls): Typically 2,000 hours, depending on operating conditions and maintenance practices.

Maintenance: Regular inspections, oil changes, and adherence to Lycoming's service bulletins are critical for longevity.

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