Hindustan engines were built by Hindustan Aeronautics, Ltd. (HAL) of Bangalore District, India. This firm manufactured several light and agricultural aircraft during the 1960s and 1970s as well as four HOAE designs for use in these aircraft.
O-190 -- {4.016 / 3.740 / 189.5} / {102 / 95 / 3105}
4cyl; P.E. 90H, HPE-1; 68hp@2250rpm, 84@2600 (TO); 1959-1970; Wt = 180#.
Dual-ignition engine for which only the carburetor and magnetos were not built in India.
J59-60toJ69-70; S; W62-63toW66-67.
Applications: (India) HAL HUL-26 Pushpak.
O-210 -- {4.134 / 3.937 / 211.4} / {105 / 100 / 3464}
4cyl; P.E. 100 ; 100hp@2600rpm; 1962-1963; Wt = N/A#.
As P.E. 90H, but with enlarged bore and stroke.
W62-63.
Applications: None found.
O-475 -- {N/A / N/A / 473.0} / {N/A / N/A / 7750}
6cyl; HPE-2; 185hp@2450rpm, 250@2625 (TO); 1969-1975; Wt = 410#.
Direct-drive engine.
J69-70toJ74-75.
Applications: (India) HAL HA-31 Mk I agricultural plane (to replace Continental-RR O-470, O-520).
O-725 -- {N/A / N/A / 724.9} / {N/A / N/A / 11,878}
8cyl; HPE-4; 400hp@2650rpm; 1975-1977; Wt = 562#.
Fuel-injected, direct-drive engine.
J75-76toJ76-77.
Applications: (India) HAL HA-31 Mk II Basant agricultural plane (to replace Lycoming IO-720).