>NiD.29 at 20:35, 16 April 2021

2021-04-16T20:35:29Z

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{|{{Infobox aircraft begin
|name=HAOP-27 Krishak
|image=HAL Krishak.JPG
|caption=HAL Krishak, display in Air Force Museum, Palam, New Delhi
}}{{Infobox aircraft type
|type=Observation aircraft
|national origin=India
|manufacturer=[[Hindustan Aeronautics Limited|Hindustan Aeronautics]]
|designer=
|first flight=November 1959
|introduced=
|retired=
|status= Retired
|primary user=[[Indian Army]]
|more users=
|produced=
|number built=70
|variants with their own articles=
}}
|}
The '''HAL HAOP-27 Krishak''' was a military observation aircraft produced in India in the 1960s. It was initially developed by [[Hindustan Aeronautics]] as an enlarged, four-seat version of the [[HAL Pushpak]] light aircraft.

Two prototypes were built, with the first flying in November 1959 and the second in November 1960.<ref name="JAWA66 p80"/> With no interest from buyers, the project was shelved until the [[Indian Army]] issued a requirement in the early 1960s for an aircraft to replace the [[Auster AOP.6]] and [[Auster AOP.9|AOP.9]]s then serving in the observation role. The original Krishak design was slightly revised to meet the new specification, and the type was adopted into service in 1965. The Krishak was phased out in the mid-1970s when it was replaced by the [[Aérospatiale SA 315B Lama|HAL Cheetah]].

==Variants==
;Krishak: Used a Continental 190 hp engine
;Krishak Mk.2: Used a Continental 225 hp engine

==Operators==
;{{IND}}
*[[Indian Army]]


==Specifications (Krishak Mk.2) ==
{{Aircraft specs
|ref=Jane's All The World's Aircraft 1966–67<ref name="JAWA66 p80">Taylor 1966, p. 80.</ref>
|prime units?=met

|genhide=

|crew=2
|capacity=1 passenger
|length m=8.41
|length ft=
|length in=
|span m=11.43
|span ft=
|span in=
|height m=2.36
|height ft=
|height in=
|wing area sqm=18.58
|wing area sqft=
|wing area note=
|swept area sqm=
|swept area sqft=
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=
|empty weight note=
|gross weight kg=1270
|gross weight lb=
|gross weight note=
|fuel capacity={{convert|127|L|USgal impgal|abbr=on}} internal, provision for additional {{convert|64|L|USgal impgal|abbr=on}} auxiliary tank
|more general=

|eng1 number=1
|eng1 name=[[Continental O-470]]-J
|eng1 type=air-cooled [[flat-six]]
|eng1 kw=
|eng1 hp=225

|prop blade number=2 
|prop name=Hartzell variable-pitch propeller
|prop dia m=2.13
|prop dia ft=
|prop dia in=
|prop note=

|perfhide=

|max speed kmh=209
|max speed mph=
|max speed kts=
|max speed note=at sea level
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|stall speed kmh=74
|stall speed note=flaps up, power on
|range km=473
|range miles=
|range nmi=
|range note=with auxiliary fuel tank
|endurance=
|ceiling m=5940
|ceiling ft=
|g limits=
|roll rate=
|climb rate ms=
|climb rate ftmin=900



|avionics=
}}

==See also==
{{aircontent

|see also=
*[[Battle of Longewala]]
|related=
|similar aircraft=
|lists=
}}

==Notes==
{{commons category|HAL Krishak}}
{{Reflist}}

===References===
{{More footnotes|date=May 2009}}
*{{cite book|last=Taylor|first=John W. R.|title=Jane's All The World's Aircraft 1966–67|year=1966|publisher=Sampson Low, Marston & Company|location=London|author-link=John W. R. Taylor}}
* {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |page=456 }}
* {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 896 Sheet 02 }}

{{HAL aircraft}}

[[Category:1950s Indian civil utility aircraft]]
[[Category:HAL aircraft|Krishak]]
[[Category:Single-engined tractor aircraft]]
[[Category:Aircraft first flown in 1959]]

HAL Krishak - Revision history

>NiD.29 at 20:35, 16 April 2021