**Technical Description of TEXTRON Lycoming AIRCRAFT Engine IO-360 M1A Wide Cylinder**

**Introduction**

The TEXTRON Lycoming AIRCRAFT Engine IO-360 M1A Wide Cylinder is a high-performance aircraft engine renowned for its reliability, durability, and fuel efficiency. Engineered with cutting-edge technology and meticulous attention to detail, this engine sets the benchmark for aviation propulsion systems.

**Construction and Design**

The IO-360 M1A boasts an unconventional wide cylinder architecture, which significantly increases displacement without compromising weight or compactness. This design optimizes combustion efficiency, resulting in enhanced power output and reduced fuel consumption. Its rugged aluminum crankcase, forged steel crankshaft, and precision-machined components ensure exceptional longevity and resistance to wear.

**Fuel System**

The engine incorporates a high-pressure fuel injection system with individual cylinder injectors, providing precise fuel metering and atomization. This advanced system optimizes air-fuel mixture distribution, enhancing combustion efficiency and minimizing emissions. The engine is compatible with various fuel grades, offering flexibility and adaptability in different operating conditions.

**Ignition System**

The IO-360 M1A employs a dual magneto ignition system, ensuring reliable and efficient spark delivery to each cylinder. The magnetos are self-contained units that generate their own high-voltage electrical energy for ignition. This redundant system significantly reduces the risk of ignition failures and enhances overall engine dependability.

**Lubrication System**

The engine is equipped with a pressure-regulated lubrication system that maintains optimal oil pressure within a wide range of operating conditions. The system utilizes a full-flow filter to remove contaminants from the oil, ensuring the longevity of critical engine components. The oil cooler is thermostatically controlled to regulate oil temperature, optimizing lubrication effectiveness and reducing wear.

**Cooling System**

The IO-360 M1A features a liquid-cooled cylinder head and oil cooler, providing superior temperature control and preventing engine overheating. The liquid coolant circulates through passages within the cylinder head and oil cooler, absorbing heat and transferring it to the external airflow. This efficient cooling system ensures consistent engine operation and extends component life.

**Accessories**

The engine comes equipped with a starter, alternator, vacuum pump, and other essential accessories. The starter is a high-torque unit designed to deliver reliable engine starting under various conditions. The alternator generates electrical power to charge the aircraft battery and power onboard systems. The vacuum pump provides suction for vacuum-operated instruments and accessories.

**Performance Characteristics**

The IO-360 M1A delivers exceptional performance, providing the necessary power for a wide range of aircraft applications. Its maximum continuous power output is 200 horsepower at 2700 revolutions per minute (RPM). The engine exhibits excellent fuel efficiency, consuming approximately 17.5 gallons per hour at maximum power. Its smooth operation and low vibration levels ensure a comfortable cabin environment for passengers and crew.

**Applications**

The TEXTRON Lycoming AIRCRAFT Engine IO-360 M1A is widely used in various fixed-wing aircraft, including single-engine and light twin-engine airplanes. Its versatility makes it well-suited for recreational flying, flight training, agricultural operations, and other aviation activities.

**Conclusion**

The TEXTRON Lycoming AIRCRAFT Engine IO-360 M1A is a testament to the company's engineering excellence and unwavering commitment to innovation. Its advanced design, high-quality components, and reliable performance make it an ideal choice for pilots and aircraft owners alike. With its exceptional fuel efficiency, durability, and versatility, the IO-360 M1A is poised to power the next generation of aircraft and redefine the standards of aviation propulsion.

TEXTRON Lycoming AIRCRAFT ENGINE
IO-360-M1A
Wide Cylinder Flange Crankcase Model Engine
PARTS CATALOG
PC-306-14
Jan 2000. 69 pages