Curtiss V-1570
The Curtiss V-1570 "Conqueror" was a V - 12 cylinder - aircraft engine of the US manufacturer Curtiss .
history
The engine was a liquid-cooled V-12 engine equipped with a propeller reduction gear, which had been developed on the basis of the Curtiss D-12 . At first the Curtiss V-1550 was made, but it was unsatisfactory. Then this engine was further developed to the V-1570. Production of the engine designed by Arthur Nutt and initially producing 600 hp began in 1926.
The possibility of cooling with ethylene glycol was essential for the V-1570 . This made it possible to increase the coolant temperature and thus to reduce the radiator surface due to the greater temperature difference to the cooling air, which in turn reduced the air resistance. In 1927, such an engine was used for the first time at the National Air Races and - installed in a Curtiss P-6 - it immediately took second place. However, glycol cooling was only ready for series production from the production variant V-1570-23.
The engine was used in the Curtiss A-8 , the Curtiss B-2 and the Douglas XB-7 , among others , and was supposed to power the majority of American military machines around 1930. In April, all standing still in use were Curtiss P-6 equipped with a version of the V-1570, over a turbocharger of General Electric possessed.
The engine should also be used in the Tupolev ANT-13 . There were negotiations to build this engine under license in the USSR. However, the contracts did not materialize.
Production ended in 1935 when more powerful engines were available. It was the last liquid-cooled engine manufactured by Curtiss-Wright.
Technical data (V-1570-59)
- Displacement: 25.7 l
- Output: 504 kW (686 hp) at 2450 rpm
- Output per liter: 19.6 kW (26.7 hp) / l
