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There is no carbureted version of the engine, which would have been designated O-346 and therefore the base model is the IO-346. [1] [2] The IO-346 was designed to run on 91-98 avgas. The engine has a dry weight of 269.75–297 lb (122–135 kg) including the generator and starter.
The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines.Engines in the O-360 series produce between 145 and 225 hp (110 and 170 kW), with the basic O-360 producing 180 hp (130 kW).
Engine model, with provisions for O-435-C accessories carburetor, producing 175 hp (130 kW) at 2300 rpm, with a compression ratio of 6.25:1, a dry weight of 368 lb (167 kg) and fitted with a Marvel MA-4SPA carburetor. Type certified on January 2, 1948. [1] O-435-K Engine model that incorporates a GO-435-C2 accessory case and crankcase.
This increased the compression to 8.5:1 and boosted power output to 170 hp (127 kW) over the O-320's 150 hp (112 kW). The engine was later used in a number of airplanes and helicopters and also in amateur-built aircraft designs. [1] The O-340 family of engines covers a range from 160 hp (119 kW) to 170 hp (127 kW).
The Double Wasp still flies in restored vintage warbird aircraft displayed at air shows, and sees service worldwide on aircraft such as the Canadair CL-215 water-bomber. In addition, R-2800s continue to power Douglas DC-6 cargo and fuel-carrying aircraft in locations such as Alaska. A total of 125,334 R-2800 engines were produced between 1939 ...
The LIO-320 is a "left-handed" version with the crankshaft rotating in the opposite direction for use on twin-engined aircraft to eliminate the critical engine. [2] [3] The first O-320 (with no suffix) was FAA certified on 28 July 1953 to CAR 13 effective 5 March 1952; this same engine was later re-designated, without change, as the O-320-A1A. [2]
Time between overhauls (abbreviated as TBO or TBOH) is the manufacturer's recommended number of running hours or calendar time before an aircraft engine or other component requires overhaul. [1] On rotorcraft, many components have recommended or mandatory TBOs, including main rotor blades, tail rotor blades and gearboxes. [2]
By 1943 the new Boeing B-29 Superfortress was flying with R-3350s. The engines remained temperamental, and the rear cylinders tended to overheat, partially due to inadequate clearance between the cylinder baffles and the cowl. A number of changes were introduced to improve cooling, and the aircraft was rushed into service in the Pacific in 1944 ...