370 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1961 



Negative No. Description 



38,626-F Left rear view. It shows the combustion chambers, the ex- 

 haust valve rocker arms and springs, the exhaust valve 

 camshaft, external electrical connections for the make-and- 

 break ignition system, the camshaft and part of the mecha- 

 nism for operating the breakers within the combustion 

 chambers, oil feed line and manifold, part of the timing 

 chain, and flywheel with its oiler and sprockets for driving 

 the propellers. 



♦38,388 Rear right view of the motor as mounted in the airplane. It 



shows the magneto driven by friction from the flywheel's 

 rim, the flywheel with its oiler, and the chains connecting it 

 with the propellers, water outlet lines, automatic intake 

 valve springs, and open-ended can surface type of carburetor. 



*41,898-C Plan view of the bottom. It shows the flywheel with its 



sprockets and oiler, the external parts of the oil pump, the 

 oil in line to the pump, and the oil out line to the manifold 

 which distributes it to the crackshaf t bearings, the inlet for 

 cooling water, the exhaust valve camshaft, rocker arms, and 

 valve springs, the ignition make-and-break system camshaft 

 and part of the operating equipment, and part of the timing 

 chain together with its idler. 



The following are photographs of drawings. Permission to use must be ob- 

 tained from the Science Museum, London, England. 



38,319-D 6-view drawing of the entire motor. 



38,320-C Mainly a cross-section drawing showing the combustion cham- 

 ber, cylinder, crankcase, piston, connecting rod, and crank- 

 shaft. 



38,320-A Mainly drawings of crankcase cover, valves, and valve guides. 



38,320-E Mainly drawings of magneto, gasoline tank, and radiator. 



The National Air Museum, Smithsonian Institution, has blueprints for sale as 

 follows: No. C-3 showing plan view. No. C-1 showing left side elevation, and 

 No. C-9 showing magneto. 



N.B. — Views of all engines refer to their positions in aircraft. 



♦Items marked with an asterisk are illustrations that appear in this paper. 



SELECTED BIBLIOGRAPHY 



1. Santos-Dumont, A. My air-ships. Century Co., New York, 1904. 



2. Scientific American for July 11, 1903. 



3. Aerosphere for 1939. Edited by Glenn D. Angle. Aircraft Publications, 



New York. 



4. Langley memoir on mechanical flight. Pt. 2, by Charles M. Manly. Smith- 



sonian Institution, 1911. 



5. Veal, C. B. Manly, the engineer. S.A.E. Journ., vol. 44, No. 4, April 1939. 



6. Original source material by Langley, Manly, and Balzer. 



7. U.S. Patent No. 573174 dated Dec. 15, 1896, by Stephen M. Balzer, 



8. The Aeroplane (British), Apr. 11, 1958. 



9. The papers of Wilbur and Orville Wright, including the Chanute-Wright 



letters and other papers of Octave Chanute. Edited by Marvin W. Mc- 

 Farland. McGraw-Hill Book Co., New York, Toronto, and London, 1953. 



