Kamov Ka-27

infobox Aircraft
name = Ka-27
type = Anti-submarine helicopter
manufacturer = Kamov



caption =
designer =
first flight = December 1974
introduction = 1982
retired =
status =
primary user = Soviet Navy
more users = Russian Navy Ukrainian Navy Indian Navy
produced =
number built =
unit cost =$1,500,000 [ [http://www.globalaircraft.org/planes/ka-27_helix.pl Global Aircraft - Ka-27 Helix ] ]
developed from = Kamov Ka-25
variants with their own articles =

The Kamov Ka-27 (NATO reporting name 'Helix') is a military helicopter developed for the Soviet Navy and currently in service in Russia, Ukraine, Vietnam, South Korea, China and India. The Ka-28 is a downgraded export version, while the Ka-32 is designed for civilian use.

Design and development

The helicopter was developed for ferrying and anti-submarine warfare. Design work began in 1970 and the first prototype flew in 1973. It was intended to replace the decade-old Kamov Ka-25, and is similar in appearance to its predecessor due to the requirements of fitting in the same hangar space. Like other Kamov military helicopters it has a co-axial rotor, removing the need for a tail rotor.

Variants

* Ka-25-2 : First prototype.
* Ka-27K : Anti-submarine warfare prototype.
* Ka-27PL "Helix-A" : Anti-submarine warfare helicopter.
* Ka-27PS "Helix-D" : Search and rescue helicopter.
* Ka-27PV Armed version of the Ka-27PS.
* Ka-28 "Helix-A" : Export version of the Ka-27Pl.
* Ka-29TB "Helix-B" : Assault transport helicopter, with accommodation for two pilots and 16 troops.
* Ka-29RLD : Airborne early warning, surface surveillance helicopter; later redesignated Ka-31.
* Ka-32A : Civil transport helicopter. Initial production version.
* Ka-32A1 : Fire fighting helicopter, equipped with a Bambi bucket.
* Ka-32A2 : Police version, equipped with two searchlights and a loudspeaker.
* Ka-32A3 : Special search and rescue, salvage and evacuation version.
* Ka-32A7 : Armed version developed from the Ka-27PS.
* Ka-32A11BC : Canadian-certified version.
* Ka-32A12 : Swiss-registered and approved version.
* KA-32C: Little-known custom version.
* Ka-32M : Projected development with 1839kW TV3-117VMA-SB3 engines. Probably replaced by the "Ka-32-10" project.
* Ka-32S "Helix-C" : Maritime utility transport, search and rescue helicopter, fitted with an undernose radar.
* Ka-32T "Helix-C" : Utility transport helicopter, with accommodation for Two crew and 16 passengers.
* Ka-32K : Flying crane helicopter, fitted with a retractable gondola for a second pilot.

Operators

Military operators

;DZA
*Algerian Air Force operates 3 Ka-32T helicopters.;CHN
*People's Liberation Army Naval Air Force;IND
*Indian Navy;RUS
*Russian Naval Aviation;USSR
*Soviet Naval Aviation;UKR
*Ukrainian Naval Aviation;VNM
*Vietnam People's Air Force;YUG/FR-YUG
*Two Ka-28s were in service (retired in 2004-2005, Museum of Aviation in Belgrade, Serbia).;KOR
*Republic of Korea Air Force operates 7 Ka-32S'

Civilian operators

;TUR
*Turkish Ministry of Forestry operates 8 Ka-32 helicopters for firefighting.;CAN
*Vancouver Island Helicopters operates Ka-32 A11 BC.;IDN
*Indonesia plan to buy the Ka-32 for non-military purposes (evacuation, search and rescue, cargo and firefighting) and for the Indonesian Police ("Polisi Lintas Udara") [ANGKASA No.07 Edisi April 2007 (page 17)] ;PRT
*Ka-32 are used for non-military purposes only, mostly firefighting.;KOR
*Korean Forestry Service and Coast Guard operate 36 Ka-32s';ESP
*Helisureste operates Ka-32 A11 BC.;CHE
*South African AIRREP operates Ka-32.;RSA [http://www.airpic.co.za/media/images/img_0264_17mar2007_rri_drop.jpgKamov Ka-32 firefighting in Cape Town, South Africa]
*Helog Heliswiss operates Ka-32 A12.
*Heliswiss operates Ka-32T.

pecifications (Ka-27)

aircraft specifications
plane or copter?= copter
jet or prop?= prop
ref=
crew= 1-3, plus 2-3 specialists
capacity=
length main= 11.30 m
length alt= 37 ft 1 in
span main= 15.80 m
span alt= 51 ft 10 in
height main= 5.50 m
height alt= 18 ft 1 in
area main=
area alt=
airfoil=
empty weight main= 6,500 kg
empty weight alt= 14,300 lb
loaded weight main= 11,000 kg
loaded weight alt= 24,200 lb
useful load main= 4,000 kg
useful load alt= 8,800 lb
max takeoff weight main= 12,000 kg
max takeoff weight alt= 26,400 lb
more general=

engine (prop)= Isotov
type of prop= turboshaft engines
number of props= 2
power main= 1,660 kW
power alt= 2,225 shp
power original=

max speed main= 270 km/h
max speed alt= 145 knots, 166 mph
cruise speed main= 205 km/h
cruise speed alt= 110 knots, 126 mph
never exceed speed main=
never exceed speed alt=
stall speed main=
stall speed alt=
range main= 980 km
range alt= 530 nm, 605 mi
ceiling main= 5,000 m
ceiling alt= 16,400 ft
climb rate main=
climb rate alt=
loading main=
loading alt=
thrust/weight=
power/mass main=
power/mass alt=
more performance=
armament="Ka-27"
* 1 × torpedoes (AT-1M, VTT-1, UMGT-1 Orlan, APR-2 Yastreb) or 36 RGB-NM & RGB-NM-1 sonobouys"Ka-29TB"
* 1 × mobile forward firing GShG-7.62 minigun with 1800 rounds,
* 1 × 30 mm 2A42 cannon with 250 rounds (flexible semi-rigid mount, optional/removable with ammunition carried in cabin)
* four external hardpoints for bombs, rockets, gunpods, munitions dispensers, special four round missile launchers for the 9K114 Shturm
* contrary to some reports the internal weapons is not retained and is replaced by an armoured passenger compartment for up to sixteen troops
avionics=
* Radar, MAD or dipping sonar, sonobuoys (Ka-27)
* RWR, ESM, EW systems (Ka-29RLD/Ka-31)

References

3. [http://www.ka27.info/eng Kamov Ka-27 - Information Resourse (eng/rus)]

ee also

aircontent
related=
* Kamov Ka-25
* Kamov Ka-31

similar aircraft=
* SH-60 Seahawk

sequence=

lists=
* List of military aircraft of the Soviet Union and the CIS
* List of helicopter models

see also=