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__NOTOC__
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. -->
{|{{Infobox Aircraft Begin
|name=C-3 Trojka
|image=Image:Trojka.JPG
|caption=An Utva Trojka on display at the [[Technical Museum, Zagreb|Technical Museum]] in [[Zagreb]]
|caption=
}}{{Infobox Aircraft Type
|type=Civil trainer
|national origin=Yugoslavia
|manufacturer=[[Ikarbus|Ikarus]], [[Utva]]
|designer=
|first flight={{avyear|1946}}
|introduced=
|retired=
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|variants with their own articles=
}}
|}
The '''Utva C-3 ''Trojka''''' ([[Trey]]) was a light aircraft built in Yugoslavia shortly after World War II as a result of a government competition to develop a new, domestically- built aircraft with which to equip the country's flying clubs. The winning design was submitted by [[Boris Cijan]] and [[DragoslavDjordje PetkovicT. Petković]] and the prototype was built by [[Ikarbus|Ikarus]] as the '''Ikarus 251'''. Series production took place at [[Utva]] as the '''C-3'''. It was a conventional, low-wing cantilever monoplane with fixed tailwheel undercarriage. The pilot and instructor sat side- by- side under an expansive canopy. The type remained in production until the mid -1950s with later examples powered by the more powerful [[Walter Mikron]] 4.
 
<!-- ==Development== -->
<!-- ==Operational history== -->
<!-- ==Variants== -->
==Operators==
;{{YUG}}
*[[Yugoslav Air Force]]
*[[Letalski center Maribor]]
 
<!-- ==Units using this aircraft/Operators (choose)== -->
==Specifications==
{{Aircraft specs
{{aerospecs
|prime units? = met
|ref=
|met or eng?=<!-- eng for US/UK aircraft, met for all others. You MUST include one or the other here, or no specifications will show -->met
 
|crew=Two, pilot and instructor
|capacity=
|length m=8.84
|length ft=29
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|span ft=34
|span in=5
|swept m=<!-- swing-wings -->
|swept ft=<!-- swing-wings -->
|swept in=<!-- swing-wings -->
|rot number=<!-- helicopters -->
|rot dia m=<!-- helicopters -->
|rot dia ft=<!-- helicopters -->
|rot dia in=<!-- helicopters -->
|dia m=<!-- airships etc -->
|dia ft=<!-- airships etc -->
|dia in=<!-- airships etc -->
|width m=<!-- if applicable -->
|width ft=<!-- if applicable -->
|width in=<!-- if applicable -->
|height m=2.08
|height ft=6
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|wing area sqm=15.5
|wing area sqft=16.7
|swept area sqm=<!-- swing-wings -->
|swept area sqft=<!-- swing-wings -->
|rot area sqm=<!-- helicopters -->
|rot area sqft=<!-- helicopters -->
|volume m3=<!-- lighter-than-air -->
|volume ft3=<!-- lighter-than-air -->
|aspect ratio=<!-- sailplanes -->
|empty weight kg=374
|empty weight lb=824
|gross weight kg=602
|gross weight lb=1,328
|lift kg=<!-- lighter-than-air -->
|lift lb=<!-- lighter-than-air -->
 
|eng1 number=1
|eng1 typename=[[Walter Mikron]] III
|eng1 kw=<!-- prop engines -->49
|eng1 hp=<!-- prop engines -->65
|eng1 kn=<!-- jet/rocket engines -->
|eng1 lbf=<!-- jet/rocket engines -->
|eng1 kn-ab=<!-- afterburners -->
|eng1 lbf-ab=<!-- afterburners -->
|eng2 number=
|eng2 type=
|eng2 kw=<!-- prop engines -->
|eng2 hp=<!-- prop engines -->
|eng2 kn=<!-- jet/rocket engines -->
|eng2 lbf=<!-- jet/rocket engines -->
|eng2 kn-ab=<!-- afterburners -->
|eng2 lbf-ab=<!-- afterburners -->
 
|max speed kmh=166
|max speed mph=103
|max speed mach=<!-- supersonic aircraft -->
|cruise speed kmh=<!-- if max speed unknown -->
|cruise speed mph=<!-- if max speed unknown -->
|range km=605
|range miles=376
|endurance h=<!-- if range unknown -->
|endurance min=<!-- if range unknown -->
|ceiling m=3,900
|ceiling ft=12,800
|glide ratio=<!-- sailplanes -->
|climb rate ms=
|climb rate ftmin=
|sink rate ms=<!-- sailplanes -->
|sink rate ftmin=<!-- sailplanes -->
 
|armament1=
|armament2=
|armament3=
|armament4=
|armament5=
|armament6=
}}
 
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|related=<!-- related developments -->
|similar aircraft=
* [[LWD Żak]] -
* [[Zlin 22|Zlin Z-22 Junak]]
* [[Yakovlev Yak-20]]
|lists=<!-- related lists -->
}}
 
==References==
{{commons category|Utva Trojka}}
* {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=430-31430–31 }}
* {{cite book |last= Simpson |first= R. W. |title=Airlife's General Aviation |year=1995 |publisher=Airlife Publishing |location=Shrewsbury |pages=396 }}
* {{cite journal |title=Utva BC-3 Trojka |journal=Insignia |yeardate=Summer 1999 |month=Summer |pages=144}}
* {{cite book |last= Јанић |first= Чедомир |last2=Петровић|first2=Огњан|title=Творци ваздухопловства Краљевине Југославије |year=2017 |publisher=Музеј науке и технике |location=Београд |isbn=978-86-82977-60-5 |pages=170 & 230 }}
<!-- ==External links== -->
 
{{Ikarus aircraft}}
{{Utva aircraft}}
{{aviation lists}}
 
[[hr:Utva 251 BC-3]]
 
[[Category:1940s Yugoslav civil trainer aircraft 1940-1949]]
[[Category:Ikarus aircraft]]
[[Category:UTVA aircraft|Trokja]]
[[Category:Single-engined tractor aircraft]]
[[Category:Low-wing aircraft]]
[[Category:Aircraft first flown in 1946]]
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