Manly-Balzer Radial 5 Engine

Manly-Balzer Radial 5 Engine

     

Commissioned by Dr. Samuel P. Langley, this engine powered his unsuccessful airplane, known as the Langley Aerodrome A. It was the first internal combustion engine specifically designed for an aircraft. In its original form, the 1899 engine was a 6 kW (8 hp), air-cooled rotary designed and built by Stephen M. Balzer of New York City, N.Y. It derived from his automobile engine of 1894, and was never reliable, only running for a few minutes.

After being redesigned and successfully rebuilt as a water-cooled radial by Charles M. Manly, Langley's assistant, it had the best power-to-weight ratio (1.5 kg/kW or 2.4 lb/hp) of any engine in the world until 1906, and ran for up to 10 hours duration. Manly damaged his eyesight while brazing engine parts, and nearly drowned while piloting the last attempted flight of the Aerodrome on December 8, 1903. The Wright Brothers were successful on December 17.

Deposit by the Smithsonian Institution

Physical Description:
Weight (wet): 95.2 kg (209.6 lb)

Country of Origin
United States of America

Designer
Charles M. Manly
Manufacturer
Langley-Manly-Balzer
Designer
Stephen M. Balzer

Date
1903

Location
National Air and Space Museum, Washington, DC
Exhibition
Early Flight

Type
PROPULSION-Reciprocating & Rotary

Materials
Metal
Dimensions
Diameter 94.0 cm (37.0 in.), Width (Depth) 48.3 cm (19.0 in.)

Commissioned by Dr. Samuel P. Langley, this engine powered his unsuccessful airplane, known as the Langley Aerodrome A. It was the first internal combustion engine specifically designed for an aircraft. In its original form, the 1899 engine was a 6 kW (8 hp), air-cooled rotary designed and built by Stephen M. Balzer of New York City, N.Y. It derived from his automobile engine of 1894, and was never reliable, only running for a few minutes.

After being redesigned and successfully rebuilt as a water-cooled radial by Charles M. Manly, Langley's assistant, it had the best power-to-weight ratio (1.5 kg/kW or 2.4 lb/hp) of any engine in the world until 1906, and ran for up to 10 hours duration. Manly damaged his eyesight while brazing engine parts, and nearly drowned while piloting the last attempted flight of the Aerodrome on December 8, 1903. The Wright Brothers were successful on December 17.

Deposit by the Smithsonian Institution

Physical Description:
Weight (wet): 95.2 kg (209.6 lb)

Country of Origin
United States of America

Designer
Charles M. Manly
Manufacturer
Langley-Manly-Balzer
Designer
Stephen M. Balzer

Date
1903

Location
National Air and Space Museum, Washington, DC
Exhibition
Early Flight

Type
PROPULSION-Reciprocating & Rotary

Materials
Metal
Dimensions
Diameter 94.0 cm (37.0 in.), Width (Depth) 48.3 cm (19.0 in.)

ID: A19080003000