Call engines were built by the Aerial Navigation Co. of Girard, Kansas. The firm built aircraft, which were also known as Call aircraft and Girard aircraft. The firm was founded in 1908 by Henry Laurens Call (1867-1917), whose interesting career is described on the Pittsburg (Kansas) State University Website and briefly on aerofiles.com. The firm's activities ended in bankruptcy in 1912. Call engines are listed correctly in Jane's for 1912 as made by a US company, but incorrectly in Aerosphere for 1939 as made by a British company. A total of 15 Call aircraft has been reported, but only one biplane was reported to have flown, but crashed in late 1911. It is uncertain which of the Call engines flew.
OL-295 - - {6.0 / 5.25 / 296.9} / {152.4 / 133.4 / 4865}
Same bore and stroke as OL-595.
2cyl; Call E-1; 45-50hp@N/A rpm; 1911; Wt = 135#; TC = none.
Liquid-cooled, single-ignition engine.
aerofiles.com (photo in Powerplants entry); Ae39; J1912.
Applications: (US) Aerial Navigation biplane (tentative identification).
OL-595 - - {6.0 / 5.25 / 593.8} / {152.4 / 133.4 / 9730}
Same bore and stroke as OL-295.
4cyl; Call E-2; 90-100hp@N/A rpm; 1911; Wt = 225#; TC = none.
Liquid-cooled, single-ignition engine.
aerofiles.com (photo in Powerplants entry); Ae39; J1912.
Applications: (US) Aerial Navigation biplane (tentative identification).