Horizontally-opposed 6, Lycoming AEIO-540-D4A5 Engine

Horizontally-opposed 6, Lycoming AEIO-540-D4A5 Engine

     

Lycoming AEIO-540-D4A5

This basic Textron Lycoming O-540 is a high-performance, six-cylinder engine used in many general aviation aircraft. In modified form, it also powers many U.S. and European aerobatic aircraft. High-powered aircraft engines make possible complex maneuvers, such as multiple vertical snap rolls and knife-edge flight, required to win aerobatic competitions. Inverted fuel and oil accessories allow aircraft to be flown in unusual attitudes.

The engine in Patty Wagstaff's Extra 260 was highly modified by Barrett Performance Aircraft, Inc. Major changes were made to increase its power, but also to provide strength for increased stress and strain in aerobatic flight. Modifications included increasing the compression ratio, modifying the cylinders to increase intake airflow and to match airflow in all of the cylinders, utilizing a cold air induction system, ensuring superior uniformity among parts, dynamically balancing the rotating assembly, and strengthening critical components. Wagstaff ran the engine continuously at and above the "red line" (maximum rpm).

Gift of Textron Lycoming Reciprocating Engine Division

Physical Description:
Condition: Complete; with engine mount; on stand.

Country of Origin
United States of America

Manufacturer
Lycoming (Williamsport, Pennsylvania)

Date
1974

Type
PROPULSION-Reciprocating & Rotary

Dimensions
Length 99.9 cm (39.34 in.), Width 84.8 cm (33.37 in.), Height 62.1 cm (24.46 in.) (Dimensions for AEIO-540-D)

Lycoming AEIO-540-D4A5

This basic Textron Lycoming O-540 is a high-performance, six-cylinder engine used in many general aviation aircraft. In modified form, it also powers many U.S. and European aerobatic aircraft. High-powered aircraft engines make possible complex maneuvers, such as multiple vertical snap rolls and knife-edge flight, required to win aerobatic competitions. Inverted fuel and oil accessories allow aircraft to be flown in unusual attitudes.

The engine in Patty Wagstaff's Extra 260 was highly modified by Barrett Performance Aircraft, Inc. Major changes were made to increase its power, but also to provide strength for increased stress and strain in aerobatic flight. Modifications included increasing the compression ratio, modifying the cylinders to increase intake airflow and to match airflow in all of the cylinders, utilizing a cold air induction system, ensuring superior uniformity among parts, dynamically balancing the rotating assembly, and strengthening critical components. Wagstaff ran the engine continuously at and above the "red line" (maximum rpm).

Gift of Textron Lycoming Reciprocating Engine Division

Physical Description:
Condition: Complete; with engine mount; on stand.

Country of Origin
United States of America

Manufacturer
Lycoming (Williamsport, Pennsylvania)

Date
1974

Type
PROPULSION-Reciprocating & Rotary

Dimensions
Length 99.9 cm (39.34 in.), Width 84.8 cm (33.37 in.), Height 62.1 cm (24.46 in.) (Dimensions for AEIO-540-D)

ID: A19940023000