The de Havilland Gipsy Major or Gipsy IIIA is a four-cylinder, air-cooled, inverted inline engine used in a variety of light aircraft produced in the 1930s, including the famous Tiger Moth biplane. Many Gipsy Major engines still power vintage aircraft types.
The Zlín Z 42 is a single-engine two-seat Czechoslovakian trainer aircraft manufactured by Moravan Otrokovice. A developed version, the Z 142, is the most popular aircraft variant in the manufacturer's aircraft line.
The Argus As 10 was a German-designed and built, air-cooled 90° cylinder bank-angle inverted V8 "low power" aircraft engine, used mainly in training aircraft such as the Arado Ar 66 and Focke-Wulf Fw 56 Stösser and other small short-range reconnaissance and communications aircraft like the Fieseler Fi 156 Storch during, and shortly after World War II. It was first built in 1928.
The Potez 4D was a four-cylinder, inverted inline aircraft engine. It was first built shortly before World War II, but did not enter full production until 1949. Like the other D-series engines, the cylinders had a bore of 125 mm (4.9 in) and a stroke of 120 mm (4.7 in). Power for different models was in the 100 kW-190 kW (140 hp-260 hp) range.
The Walter Mikron is a four-cylinder, air-cooled, inverted straight engine for aircraft.
The Ranger V-770 was an American air-cooled inverted V-12 aircraft engine developed by the Ranger Aircraft Engine Division of the Fairchild Engine & Aircraft Corporation in the early 1930s.
The Ivchenko AI-14 is a nine-cylinder, air-cooled, radial piston engine designed in the Soviet Union to power aircraft.
The Walter Minor is a family of four- and six-cylinder inverted inline air-cooled engines, developed under auspices of ing. Šimůnek and used on light aircraft. First produced in 1929, the Minor engines' family has an advanced design for the period and sports steel cylinders, aluminum heads and overhead valves, with identical bore and stroke of 105 mm (4.1 in) and 115 mm (4.5 in), respectively. Typical power ratings varied from 105 to 160 hp.
The Hirth HM 506 was a six-cylinder air-cooled inverted inline engine that was developed from the earlier four-cylinder HM 504. The HM 506 was a popular engine for light aircraft of the 1930s to 1940s and powered the Bücker Bü 133A model trainer. The engine featured a cast magnesium alloy crankcase.
The Zlin Z-526 Akrobat is a Czech sports plane used in aerobatics.
The Avia M 332 is an air-cooled four-cylinder inverted inline engine. It was designed by Bohumil Šimůnek, of Motorlet Walter Aircraft Engines, as a more powerful replacement for the four-cylinder Walter Minor engine, going into production in 1958. Piston aircraft engine production was transferred from Walter to Avia in 1964, the engine becoming the Avia M 332.
One of Avia's own designs, the 1930s Avia Rk.12 was a seven-cylinder radial engine with a rated output of 150 kW (200 hp), built in Czechoslovakia.
The Avia Rk.17 was a 9-cylinder radial aircraft engine, developed from the 7-cylinder Avia Rk.12, with a rated output of 270 kW (360 hp). The Rk.17 was one of Avia's own designs and was built in Czechoslovakia in the 1930s.
The Frontier MD-II was an American homebuilt aircraft that was designed and supplied as a kit by Frontier Aircraft Inc of Vail, Colorado, introduced in the 1990s.
The Potez 6D is a French six cylinder inverted inline aircraft engine put into production after World War II in normal and supercharged versions. Unsupercharged, it produced a take-off power of 179 kW (240 hp) at 2,530 rpm.
The Potez 8D is the largest member of the Potez D series of air-cooled piston aircraft engines which share several common features. It is a supercharged eight cylinder inverted engine with a take-off power of 373 kW (500 hp).
The Renault 6Q, also called the Renault Bengali 6, is an air-cooled six-cylinder, inverted piston engine, producing about 160 kW (220 hp) continuous power. It was designed and built in France and produced for more than ten years after its homologation in 1936, with large numbers built during World War II.
The LOM M132 is a Czech aircraft engine, designed and produced by LOM Praha of Prague for use in light aircraft.
The LOM M137 is a Czech aircraft engine, designed and produced by LOM Praha of Prague for use in light aircraft.
The Piaggio Stella P.VII was the first P series aircraft engine produced by Rinaldo Piaggio S.p.A. Based on its experience license-producing the Gnome-Rhône 7K, Piaggio sold the engine to be used on a wide range of Italian aircraft before and during World War II, including the record-breaking Caproni Ca.133.
