The Kamov Ka-20 (NATO reporting name Harp) was a Soviet twin-engine antisubmarine helicopter prototype. It first became known to the West from the 1961 Aviation Day display.

Precursor of the Kamov Ka-25.

External links:

http://www.aviation.ru/Ka/#20

Related content

Related development: Kamov Ka-25

Comparable aircraft:

Designation sequence: Ka-15 - Ka-18 - Ka-19 - Ka-20 - Ka-22 - Ka-25 - Ka-26