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The Curtiss V-1570 Conqueror was a 12-cylinder vee liquid-cooled aircraft engine. Representing a more powerful version of the
Curtiss D-12 The Curtiss D-12, sometimes identified with the military designation Curtiss V-1150, was an aircraft engine of 18.8 liter displacement. It was a water-cooled V12, producing 443 hp (330 kW) and weighing 693 lb (314 kg). It was ...
, the engine entered production in
1926 Events January * January 3 – Theodoros Pangalos declares himself dictator in Greece. * January 8 **Abdul-Aziz ibn Saud is crowned King of Hejaz. ** Crown Prince Nguyễn Phúc Vĩnh Thuy ascends the throne, the last monarch of V ...
and flew in numerous aircraft.Gunston 1989, p. 46.


Design and development

Designed in 1924 as a military successor to the
Curtiss D-12 The Curtiss D-12, sometimes identified with the military designation Curtiss V-1150, was an aircraft engine of 18.8 liter displacement. It was a water-cooled V12, producing 443 hp (330 kW) and weighing 693 lb (314 kg). It was ...
, initially named the Conqueror, it was later given the military designation of V-1570 based on its
displacement Displacement may refer to: Physical sciences Mathematics and Physics *Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
of 1,570 cubic inches (26 L). The engine featured open-ended cylinder liners (advanced technology for the period) and pressurized
liquid cooling Liquid cooling refers to cooling by means of the convection or circulation of a liquid. Examples of liquid cooling technologies include: * Cooling by convection or circulation of coolant, including water cooling * Liquid cooling and ventilatio ...
. Developments including the use of a
supercharger In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induct ...
gradually increased power output until reliability problems due to overheating and coolant leaks became apparent. Military funding for further development of the Conqueror was cut in 1932, efforts by Curtiss to market the engine for civil
airliner An airliner is a type of aircraft for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an ...
s failed and the line was dropped from production.


Variants

;V-1570-1 ;V-1570-5 ;V-1570-7 ;GV-1570-7: geared -7 ;V-1570-9 ;V-1570-11 ;V-1570-13 ;V-1570-15 ;SV-1570-15 ;V-1570-17 ;V-1570-23 ;V-1570-25 ;V-1570-27 ;V-1570-29 ;V-1570-33 ;V-1570-53 ;V-1570-55 ;V-1570-57 ;V-1570-59 ;V-1570-61 ;V-1570-79 ;GIV-1570-FM ;V-1570-C ;V-1570-F ;GIV-1570C


Applications

* Atlantic XB-8 *
Bellanca TES The Bellanca TES (Tandem Experimental Sesquiplane) or Blue Streak was a push-pull sesquiplane aircraft designed by Giuseppe Mario Bellanca in 1929 for the first non-stop flight from Seattle to Tokyo. In 1930 it was refitted with two 600 hp ...
(1930 version) *
Berliner-Joyce P-16 The Berliner-Joyce P-16 was a 1930s United States two-seat fighter aircraft produced by Berliner-Joyce Aircraft Corporation. Design and development The Berliner-Joyce Aircraft Corporation was established in February 1929 when it acquired the as ...
*
Boeing XP-9 The Boeing XP-9 (company Model 96) was the first monoplane fighter aircraft produced by the United States aircraft manufacturing company Boeing. It incorporated sophisticated structural refinements that were influential in later Boeing designs ...
* Boeing Y1B-9 *
Consolidated A-11 The Consolidated P-30 (PB-2) was a 1930s United States two-seat fighter aircraft. An attack version called the A-11 was also built, along with two Y1P-25 prototypes and YP-27, Y1P-28, and XP-33 proposals. The P-30 is significant for being the fi ...
*
Consolidated P-30 The Consolidated P-30 (PB-2) was a 1930s United States two-seat fighter aircraft. An attack version called the A-11 was also built, along with two Y1P-25 prototypes and YP-27, Y1P-28, and XP-33 proposals. The P-30 is significant for being the fi ...
* Consolidated Y1P-25 *
Curtiss A-8 The Curtiss A-8 was a low-wing monoplane ground-attack aircraft built by the United States company Curtiss Aeroplane and Motor Company, designed in response to a 1929 United States Army Air Corps requirement for an attack aircraft to replace th ...
*
Curtiss B-2 Condor The Curtiss B-2 Condor was a 1920s United States bomber aircraft. It was a descendant of the Martin NBS-1, which was built by the Curtiss Aeroplane and Motor Company for the Glenn L. Martin Company. There were a few differences, such as stron ...
*
Curtiss CO Condor The 1929 Curtiss Model 53 Condor, also known as the Curtiss Model 53 Condor 18 or the Curtiss CO Condor, was a civil passenger version of the Model 52 Condor bomber. A twin-engined biplane, it carried 18 passengers. Design and development The ...
*
Curtiss P-1 Hawk The P-1 Hawk (Curtiss Model 34) was a 1920s open-cockpit biplane fighter aircraft of the United States Army Air Corps. An earlier variant of the same aircraft had been designated PW-8 prior to 1925."US Military Aircraft Designations & Serials 19 ...
*
Curtiss P-6 Hawk The Curtiss P-6 Hawk is an American single-engine biplane fighter introduced into service in the late 1920s with the United States Army Air Corps and operated until the late 1930s prior to the outbreak of World War II. Design and development Th ...
*
Curtiss XO-30 The Curtiss XO-30 was a projected 1920s American twin-engined observation monoplane designed by the Curtiss Aeroplane and Motor Company for the United States Army Air Service, a prototype was cancelled and not built. Design and development One pro ...
(not built) *
Curtiss XP-10 The Curtiss XP-10 was an American experimental biplane fighter developed by Curtiss and tested by the United States Army Air Corps, but rejected due to disappointing performance and major problems with the cooling system. Design and developmen ...
*
Dornier Do X The Dornier Do X was the largest, heaviest, and most powerful flying boat in the world when it was produced by the Dornier company of Germany in 1929. First conceived by Claude Dornier in 1924, planning started in late 1925 and after over 240 ...
*
Douglas O-31 The Douglas O-31 was the Douglas Aircraft Company's first monoplane observation straight-wing aircraft used by the United States Army Air Corps. Development Anxious to retain its position as chief supplier of observation aircraft to the USAAC, ...
*
Douglas O-43 The Douglas O-43 was a monoplane observation aircraft used by the United States Army Air Corps. Development Five Y1O-31A service-test aircraft were ordered in 1931, and delivered to the USAAC in early 1933 designated Y1O-43. They differed from ...
*
Douglas Y1B-7 The Douglas Y1B-7 was a 1930s American bomber aircraft. It was the first US monoplane given the ''B-'' 'bomber' designation. The monoplane was more practical and less expensive than the biplane, and the United States Army Air Corps chose to expe ...
*
Huff-Daland XB-1 The Huff-Daland XB-1 was a prototype bomber aircraft built for the United States Army Air Corps. The XB-1 was the first aircraft named using just a ''B-'' designation. Prior to 1926, the U.S. Army used ''LB-'' and ''HB-'' prefixes, signifying ' ...
*
Lockheed YP-24 The Lockheed-Detroit YP-24 was a 1930s prototype two-seat fighter aircraft produced by Detroit Lockheed. An attack version called the A-9 was also proposed. The YP-24 is most remarkable for being the first fighter aircraft to bear the Lockheed ...
* Thomas-Morse YO-23 *
Tupolev TB-3 The Tupolev TB-3 (russian: Тяжёлый Бомбардировщик, Tyazhyolyy Bombardirovshchik, Heavy Bomber, civilian designation ANT-6) was a monoplane heavy bomber deployed by the Soviet Air Force in the 1930s and used during the early ...


Other applications

* Mormon Meteor III (custom Bonneville salt flat race car)


Specifications (V-1570 direct drive)


See also


References


Notes


Bibliography

* Gunston, Bill. ''World Encyclopedia of Aero Engines''. Cambridge, England. Patrick Stephens Limited, 1989. * Grey, C.G. ''Jane's all the World's Aircraft 1931'' London, England. Sampson Low, Marston & Company Limited {{US military piston aeroengines V-1750 1920s aircraft piston engines