![Ka-20 Harp Anti-Submarine Helicopter](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi451ON6Qw9sQbUnYnLIqeGnHHsXPoOaMFl2nG29qGlIqlRGRTUCoMpoIk6fSzy94bhzOAihni9eP0PHPMdnBjGcLlNf33atd1N_2w8ZKIINQ5Zfq6wRdArThNbriqi7Pwk-pX4kNI2O6A/s800/Ka-20+Harp+Anti-Submarine+Helicopter2.jpg)
![Ka-20 Harp Anti-Submarine Helicopter](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2rVhY989hkxGQBmkA-i4GXgc80zctc-rMBYVwfKkLZ8P4INZCI2GL6OV6yzLTXm7kC-3dUWzNJuptoh7VsvBnfJz_oQQuYIAJEXZeXsQdtFiNd22J0cGgdrxE1TMrOAmrwCru8fa3ekQ/s800/Ka-20+Harp+Anti-Submarine+Helicopter.jpg)
The Kamov Ka-20 (NATO codename Harp) was a Soviet specialist anti-submarine helicopter was a precursor of the Ka-25. The Ka-25 was the end result of a requirement of the Soviet navy in 1957 on board a helicopter anti-submarine warfare. In response developed Kamov Ka-20 which first flew in 1960. In July 1961, the Kamov Ka-20 Harp first appeared during the celebration of Soviet Aviation Day with two mock air-to-surface missiles.
The Kamov Ka-20 was a twin-engine helicopter powered by two turboshaft engines provide 670kW Glushenkov a top speed of 220 kmh and a range of 650 km. The Ka-20 was much larger than the Ka-18. Although larger and twin-turbine engine, which is clearly derived from the Ka-15 and Ka-18, and, judging by a search radar housing under the forward fuselage was considered as a new anti-submarine helicopter. It has since come to be regarded as the prototype of the Ka-25 ("hormonal" NATO codename).
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