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Kamov Ka-25

first flew 1961· anti-submarine / multi-purpose shipboard helicopter

🚁 helicopter 2× turboshaft retired
10 photos from Wikimedia Commons · credits & licences
  1. 1. Ka-2583: Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994· Public domain
  2. 2. KA25 Indian Navy Air Arm: AryanBhutani· CC BY 4.0
  3. 3. Kamov Ka-25K CCCP-21110 Le Bourget 03.06.67 edited-2: RuthAS· CC BY 3.0
  4. 4. Kamov Ka-25 Hormon: Bernhard Gröhl· CC BY 2.5
  5. 5. Kamov Ka-25 at Ukraine State Aviation Museum: Photographer: Mosbatho· CC BY 4.0
  6. 6. Soviet Ka-25 Hormone-C (cropped): US Navy· Public domain
  7. 7. 36 Red Kamov Ka.25 BT Ukrainian Navy (7724010238): Aeroprints.com· CC BY-SA 3.0
  8. 8. Ka-25 (9678380410): Aleksandr Markin· CC BY-SA 2.0
  9. 9. Ka-25: Kobel at German Wikipedia· Public domain
  10. 10. Ka-25K.Seite: Kobel· CC BY-SA 3.0
Read about it on Wikipedia ↗
Kamov Ka-25, photo 1 of 10
1/10 Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994· Public domain

what is it?

The Kamov Ka-25 (NATO reporting name "Hormone") is a coaxial rotor naval helicopter, developed for the Soviet Navy in the USSR from 1958, before being succeeded by the Ka-27. The Ka-25 filled a multitude of roles while it was in service with the Soviet Navy.

How to recognise it: 2 turboshaft engines · 15.7 m main rotor

base stats

  • speed 209 km/htop speed
  • range 400 kmwithout refuelling
  • size 7,500 kgmax take-off weight
  • built 460made in total

Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).

fun facts

  • First flew 65 years ago, in 1961.
  • Top speed is 1.6× a car on the Dutch motorway (130 km/h).
  • Rotor of 15.7 m: about 3 cars parked nose to tail.

turboshaft: A turbine that turns a shaft, usually a helicopter rotor.

spec sheet

first flight
1961-07-20
introduced
1971
status
retired
number built
460
role
anti-submarine / multi-purpose shipboard helicopter
makers
Kamov, Ulan-Ude Aviation Plant
engines
2× Glushenkov GTD-3F / turboshaft
crew
4
length
9.8 m
rotor diameter
15.7 m
height
5.4 m
max take-off weight
7,500 kg
top speed
209 km/h
cruise speed
193 km/h
range
400 km
ceiling
3,350 m

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.

Sources: Wikidata Q597404, Wikipedia: Kamov Ka-25 (CC BY-SA 4.0).Updated 2026-10-24.

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