Rocket engineering presents vertical air-cooled, totally enclosed compression ignition, four-stroke cycle, cold starting engines. This engine`s applications include industrial, agricultural, construction machinery, generating sets, threshers, and flourmills. A standard pepper pot type silencer is fitted for reducing exhaust noise. It has an oil bath type air cleaner for efficient cleaning, even in dusty environments. Lubrication is partly by force feed type pump and partly by splash lubrication. For twin cylinder engines, geared pump is fitted for lubrication. Features: low operating cost due to excellent combustion performance and trouble free working; fuel supplied by gravity feed through clothe type filter from the fuel tank; cooling is by cold air forced on the finned cylinders, and head radial fan mounted on flywheel directed through a streamlined cowling; standard power take off is from flywheel side; and lubrication with sae 30/40 or equivalent.