"},"type":{"wt":"2-cylinder air-cooled [[Flat twin engine|horizontally opposed]] direct drive naturally aspirated two-stroke aircraft piston engine"},"bore":{"wt":"{{convert|3.25|in|mm|abbr=on|1}}"},"stroke":{"wt":"{{convert|2.75|in|mm|abbr=on|1}}"},"displacement":{"wt":"{{convert|45.5|cuin|cc|1|abbr=on}}"},"length":{"wt":""},"diameter":{"wt":""},"width":{"wt":""},"height":{"wt":""},"weight":{"wt":"{{convert|34|lb|kg|abbr=on|1}}"},"valvetrain":{"wt":""},"supercharger":{"wt":""},"turbocharger":{"wt":""},"fuelsystem":{"wt":""},"fueltype":{"wt":"73 [[octane]] gasoline"},"oilsystem":{"wt":""},"coolingsystem":{"wt":"Air-cooled"},"power":{"wt":"
\n*(Normal): {{convert|20|hp|kW|abbr=on|1}} at 3,800 rpm at sea level"},"specpower":{"wt":""},"compression":{"wt":""},"fuelcon":{"wt":""},"specfuelcon":{"wt":""},"oilcon":{"wt":""},"power/weight":{"wt":""},"designer":{"wt":""},"reduction_gear":{"wt":""},"general_other":{"wt":""},"components_other":{"wt":""},"performance_other":{"wt":""}},"i":0}},"\n\n"]}" id="mwNw">
Data from [2]
Related lists
The Continental C90 and O-200 are a family of air-cooled, horizontally opposed, four-cylinder, direct-drive aircraft engines of 201 in³ displacement, producing between 90 and 100 horsepower.
The Nakajima Homare was an air-cooled twin-row 18 cylinder radial Japanese aircraft engine manufactured during World War II. Producing almost 2,000 horsepower, it was used widely by both the Imperial Japanese Army and the Imperial Japanese Navy. Given the Navy service designation NK9, the "Homare" was also given the company designation NBA, Army experimental designation Ha-45 (ハ45) or, Army long designation Nakajima Army Type 4 1,900 hp Air-Cooled Radial and, (coincidentally) unified designation code of Ha-45.
The Armstrong Siddeley Lynx is a British seven-cylinder aero engine developed by Armstrong Siddeley. It was developed as a single row version of the two-row Armstrong Siddeley Jaguar. Testing began in 1920 and 6,000 had been produced by 1939. In Italy Alfa Romeo built a 200 horsepower (150 kW) licensed version of this engine named the Alfa Romeo Lynx.
The Radioplane OQ-2 was the first mass-produced UAV or drone in the United States, manufactured by the Radioplane Company. A follow-on version, the OQ-3, became the most widely used target drone in US service, with over 9,400 being built during World War II.
The Radioplane BTT, known as RP-71 by the company, as WS-426/2 by the United States Navy, and as WS-462/2 by the US Air Force, is a family of target drones produced by the Radioplane Company.
The Jacobs R-755 is a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States by the Jacobs Aircraft Engine Company.
The Curtiss R-600 Challenger was a six-cylinder, double-row, air-cooled, radial engine for aircraft use built in the United States in the late 1920s. It developed 170 to 180 horsepower.
The Jacobs R-915 or Jacobs L-6 is a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States, production started in 1936.
The Wolseley Aries III or A.R.9 was a British nine-cylinder, air-cooled radial aero engine that first ran in 1933, it was designed and built by Wolseley Motors. Intended for the military trainer aircraft market few were produced as Wolseley withdrew from the aero engine market in 1936.
British Salmson aero-engines refers to a series of small French designed, air-cooled radial aero engine that were produced by British Salmson Aero Engines Ltd, under license from Société des Moteurs Salmson, in Great Britain during the late 1920s and 1930s.
The Radioplane Q-1 was an American target drone, developed in the early 1950s for the United States Air Force by the Radioplane Company. Originally powered by a pulsejet engine, then later developed as an improved turbojet-powered aircraft, the Q-1 failed to win the favor of the USAF. However, the aircraft provided the basis of the GAM-67 Crossbow anti-radar missile.
The Mitsubishi Zuisei was a 14-cylinder, supercharged, air-cooled, two-row radial engine used in a variety of early World War II Japanese aircraft. It was one of the smallest 14-cyl. engines in the world and the smallest diameter Japanese engine. The Mitsubishi model designation for this engine was A14 while it was an experimental project, in service it was known as the MK2, followed by the revision code letter, and known as the Ha26 & Ha102 by the Army and "Zuisei" by the Navy. Unified designation code was [Ha-31].
The Globe KDG Snipe was an American target drone, built by the Globe Aircraft Corporation for use by the United States Navy. The KDG, and its modified version, the KD3G Snipe, served between 1946 and the early 1950s.
The Globe KD4G Quail was an American target drone, built by the Globe Aircraft Corporation for use by the United States Navy.
The Globe KD6G Firefly is an American target drone, built by the Globe Aircraft Corporation for operation by the United States Navy during the 1950s and early 1960s.
The Frankfort OQ-16, also known as the TD3D, was a target drone designed by the Frankfort Sailplane Company for use by the United States Army Air Forces and United States Navy.
The Radioplane Company was an American aviation company that produced drone aircraft primarily for use as gunnery targets. During World War II, they produced over 9,400 of their Radioplane OQ-3 model, a propeller-powered monoplane, making it the most-used target aircraft in the US. In the post-World War II era they introduced their Radioplane BTT series, which was produced for years and eventually reached almost 60,000 examples. They also produced several radio control and self-guided missiles, the largest being the GAM-67 Crossbow, which did not enter service. The company was purchased by Northrop Corporation in 1952, and moved to one of Northrop's factories in 1962. One of the last projects carried out at the original Radioplane factory in Van Nuys, California, was the construction of the Gemini Paraglider.
The Radioplane OQ-17 was a target drone produced by the Radioplane Company for the United States Army Air Forces and, as the TD4D/KDR Quail, the United States Navy. Suffering from an unreliable engine, the OQ-17 production run was cut short in favor of the OQ-19.
The Radioplane OQ-6 was a target drone developed by the Radioplane Company under the designation RP-14 and evaluated by the United States Army Air Forces for service use. A small number were procured, but major production contracts were cancelled by the end of World War II.
The OQ-15 was a prototype American subscale drone built for the US Army Air Forces in the mid-1940s.