the ka-20 was introduced in 1961. it retained the co-axial rotors of previous kamov helicopters, and it was driven by two turbine engines. it is generally considered to be the prototype of the ka-25.
Derivatives & Versions of ka-20
| the ka-25 was a variant of the ka-20. it had three major variants, which were all designed for marine use. it had one civil variant, the ka-25k w ...
c 460 built in all versions between c 1966 and 1975. Ka-25PL Hormone-A was the shipborne anti-submarine version Ka-25Ts Hormone-B was the shipb ...
List of Operators of ka-20