AeroMotion engines were built by AeroMotion, Inc. (AMI) at an unknown address. The original AMI Twin was based on off-the-shelf automotive (Chevrolet V-8) internal parts. Turner Engine Works of Schaumburg, Illinois acquired the designs in 1985 and renamed the O-100 as the Turner Twin Zephyr (SA10/85). This engine has remarkable similarity to the Technopower Twin (O-101), which also was built in the Chicago area. Further information on the relationship between the two engines is being sought.
O-100 -- {4.125 / 3.75 / 100.2} / {104.8 / 95.3 / 1642}
2cyl; AeroMotion Twin, Turner Twin Zephyr; 53hp@3100rpm-55@3200 on autogas, 85@3450 on 100 octane avgas, and 110@3450 turbocharged on 100 octane avgas; 1984-1992; Wt = 100#; TC = none.
Dual-ignition engine.
BGP; J84-85toJ92-93; SA10/85.
Applications: None found.
O-101 -- {4.0 / 4.0 / 100.5} / {101.6 / 101.6 / 1647}
2cyl; AeroMotion Twin; N/Ahp@N/A rpm; 1982-1984; Wt = N/A; TC = none.
Dual-ignition engine.
BGP; J84-85toJ92-93; SA10/85.
Applications: (US) Brock Autogiro; Heath Parasol.