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{|{{Infobox Aircraft Begin
{{Infobox aircraft
|name = Utva 75
| name = UTVA 75
|image = Image:Utva-75.jpg
| image = File:MoD - 40th Anniversary Utva 75.jpg
|caption =The Utva 75 is used by several ex-YU aeroclubs
| caption = Serbian Air Force Utva 75
| type = Military Trainer Aircraft / Civilian Trainer Aircraft
}}{{Infobox Aircraft Type
| national_origin = {{SRB}}
|type = Military Trainer/General Aviation
|manufacturer = [[Utva]]
| manufacturer = [[UTVA]]
|designer =
| designer =
| first_flight = 19 May 1976<ref name="utva-75">{{cite web|url=http://www.vs.rs/index.php?content=5106b9ad-01a9-102c-812e-c80ad71b00ad|title=Školski avion UTVA-75|publisher=Vojska Srbije|access-date=10 July 2013}}</ref>
|first flight =19 May 1976
| introduction = 1978
|introduced =Late 1970s or early 1980s
| status = Active
|retired =
| primary_user = [[Serbia Air Force]]
|number built = 138
| more_users =
|status =
|unit cost =
| program cost =
| unit cost =
|variants with their own articles =
|primary user =[[Serbian Air Force]]
|more users = various regional Air Clubs
}}
}}
The '''UTVA 75'''<ref>{{Cite web |title=UTVA Aircraft Industry |date=6 January 2021 |url=https://utva-avio.com/about-us/}}</ref> is a light utility aircraft produced by the [[Serbian Air Force and Air Defence|Serbian aircraft]] manufacturer [https://utva-avio.com/sr/ UTVA]. It was first introduced in the late 1970s and has since been used primarily for training, reconnaissance, and light transport roles. Known for its reliability and versatility, the UTVA 75 has been adopted by several military and civilian operators around the world.[[File:Utva-75.jpg|right|thumb|Slovenian Utva-75]]
|}
[[File:Utva 75 53244 252štae 204vbr.jpg|thumb|Utva-75 Serbian air force]]
The '''Utva 75''' is a compact, piston engined aircraft manufactured by [[Lola Utva]]. It is mainly used as a military training aircraft for air force pilots that are not able to fly jet aircraft yet. It is a fairly popular aircraft among a few Balkan air forces.
[[File:Utva 75 RV i PVO VS-3.jpg|thumb|Utva-75 Serbian RViPVO]]
[[File:Montenegrian air force Utva 75 at golubovci airbase.JPG|thumb|[[Montenegrin Air Force]] Utva 75]]
[[File:LOLAUtva75.jpg|thumb|Macedonian Utva-75]]
[[File:Utva Sova - Partner 2019 - 1.jpg|thumb|Utva Sova - further development of the aircraft]]
[[File:SAFAT 03.jpg|right|thumb|The sole SAFAT 03, developed from the UTVA 75.]]
The development of the UTVA 75 began in the early 1970s in response to a need for a new primary trainer aircraft for the [[Yugoslav Air Force]]. The first prototype took to the skies in 1976, and following successful testing, the aircraft entered production in 1978. Over the years, the UTVA 75 has seen various upgrades and modifications to enhance its performance and capabilities.


Designed in 1975 to replace the [[UTVA Aero 3]] as the primary basic trainer in the [[Yugoslav Air Force]]. It features upward opening gull-wingtype access doors to the two-seat side-by-side cockpit. Another characteristic is a row of air scoops, presumably for cockpit ventilation, in the central front frame of the cockpit. The Utva 75 made its maiden flight in 1976. Between 1978 and 1985, a total of 136 UTVA 75s were produced for the former Yugoslav Air Force. Following the [[breakup of Yugoslavia]], many were passed on to successor states such as Serbia, Slovenia, Croatia, Montenegro.
==History==
The Utva 75, originally called the V-53 in the [[SFR Yugoslav Air Force|Yugoslav Air Force]], was designed to replace the older and slower [[Utva 66]]. Its goal was a success: over a hundred units were built and served the Former Yugoslav Air Force for decades. After the war in former Yugoslavia, the Croatian AF, Serbian and later Montenego AF used the Utva 75. The last Utva 75's ever produced so far were two that were produced in Lola Utva's [[Pančevo]] factory in [[Serbia]] in 2003. They were exported to the [[United States]]. Civil operators include [[Serbia]], [[Bosnia and Herzegovina]], [[Montenegro]], [[Croatia]], [[Slovenia]], [[Republic of Macedonia]], [[Jordan]] and the [[United States]]


==Development==
* '''Utva 75''' : Two-seat training aircraft.
The UTVA 75 features a fully metallic, semi-monocoque airframe, which provides structural strength and durability. The aircraft is powered by a [[Lycoming O-360]] engine, capable of delivering 210 horsepower. This engine configuration allows the aircraft to achieve a maximum speed of 209 km/h (113 knots) and a service ceiling of 4,178 meters (13,708 feet).
* '''Utva 75A''' : Four-seat light aircraft.
*{{SRB}} - currently operates 12-15 Utva 75s
*{{BIH}} - currently operates 9 Utva 75s and 7 Utva 75s have been retired
* Sudan - currently operates 6 Utva 75 ( since 2009 year )
*{{CRO}} - retired
*{{MKD}} - retired
*{{MNE}} - currently operates 3 Utva 75s
*{{SLO}} - retired
*{{YUG}} - passed on to successor states


The low-wing design of the UTVA 75 contributes to its stability and maneuverability, which are essential for training and acrobatic maneuvers. The fixed landing gear ensures reliability and reduces maintenance complexity, making it easier for training operations. The cabin is ergonomically designed, featuring adjustable seats and pedals, and provides ample room for both pilots, enhancing comfort during long training sessions.
==Specifications (Utva 75)==

{{aircraft specifications|
==Design==
|plane or copter?=plane
{{unreferenced section|date=August 2023}}
|jet or prop?=prop
The UTVA 75 is designed<ref>{{Cite web |last=Petrašinović |first=Danilo |date=Jul 2013 |title=Light aircraft UTVA 75 |url=https://www.researchgate.net/figure/Light-aircraft-UTVA-75_fig1_274739758 |website=ResearchGate}}</ref> as a low-wing monoplane, emphasizing simplicity and robustness, ideal for training and light utility roles. Here are some detailed aspects of its design and development:
|crew= 2

|capacity= 2 person capacity
=== Airframe and Structure<ref>{{Cite journal |last=Aleksandar |first=Aleksandar |date=Jul 2013 |title=Light aircraft UTVA 75 |url=https://www.researchgate.net/figure/Light-aircraft-UTVA-75_fig1_274739758 |journal=ResearchGate}}</ref> ===
|length main= 7.11 m
The UTVA 75 features an all-metal construction, primarily using aluminum alloys, which provides a good balance between strength and weight. The low-wing configuration offers excellent visibility for the pilots, which is particularly beneficial during training flights and reconnaissance missions. The aircraft's fixed tricycle landing gear is designed to be sturdy and reliable, capable of operating from both paved runways and rough airstrips.
|length alt= 23 ft 4 in

|span main= 9.73 m
=== Powerplant ===
|span alt= 31 ft 11 in
The aircraft is powered by a single [[Lycoming O-360|Lycoming IO-360]] engine, a four-cylinder, air-cooled, horizontally opposed piston engine. This engine produces 180 horsepower, providing the UTVA 75 with sufficient power for its various roles. The engine is equipped with a two-blade fixed-pitch propeller, which is simple to maintain and operate.
|height main= 3.15 m

|height alt= 10 ft 4 in
=== Cockpit and Avionics ===
|area main=
The cockpit of the UTVA 75 is designed for two occupants, typically a student and an instructor in a side-by-side seating arrangement. This setup allows for effective communication and instruction during training flights. The aircraft is equipped with dual flight controls, ensuring that both the student and the instructor can operate the aircraft.
|area alt=

The avionics suite in the UTVA 75 is relatively basic, reflecting its primary role as a training aircraft. However, it includes all necessary instruments for [[Visual flight rules|VFR (Visual Flight Rules)]] flight, such as airspeed indicator, altimeter, vertical speed indicator, and a standard set of engine gauges. Some variants may be equipped with additional avionics for specific roles, such as navigation aids for the reconnaissance variant.

==Operational history==
{{unreferenced section|date=August 2023}}

=== Performance and Handling<ref>{{Cite web |date=April 2018 |title=Flight Report – That 70s Plane: Flying The UTVA 75 Trainer |url=https://achtungskyhawk.com/2018/04/24/flight-report-that-70s-plane-flying-the-utva-75-trainer/}}</ref> ===
The UTVA 75 is designed to be a stable and forgiving aircraft, making it an excellent platform for primary flight training. Its low-wing configuration and moderate wing loading provide good low-speed handling characteristics and short takeoff and landing capabilities. The aircraft's control surfaces are large and responsive, contributing to its easy handling and maneuverability.

=== Modifications and Upgrades ===
Over the years, the UTVA 75 has seen several modifications and upgrades to enhance its performance and adapt it to different roles. These modifications include reinforced landing gear for rough-field operations, additional fuel tanks for extended range, and various mission-specific equipment such as cameras and crop-dusting apparatus.

=== Operational Use ===
The UTVA 75 has proven to be a versatile and reliable aircraft, serving in various roles beyond primary training. It has been used for aerial reconnaissance, light transport, liaison duties, and even agricultural applications. Its simple design and robust construction have made it a favorite among operators who require a dependable and easy-to-maintain aircraft.

Overall, the design of the UTVA 75 reflects its intended purpose as a multi-role utility aircraft. Its combination of simplicity, reliability, and versatility has ensured its continued use by both military and civilian operators around the world.

==Variants==
;UTVA 75A11: Single-seat agricultural aircraft, largely using the Utva 75 airframe.<ref name=JAWA88-89/>
;UTVA-75A21: Two-seater with dual controls and provisions for blind instrument flying.<ref name=JAWA88-89/>
;UTVA-75A41: Four-seater with advanced avionics, first flown in 1986.<ref name=JAWA88-89/>
;SAFAT 03: A development of the UTVA 75 from the SAFAT Aviation Complex at Khartoum, Sudan, with a modified fuselage and tail fin. To confuse matters the Sudanese Government marked up a standard UTVA 75 as a SAFAT 03. One example known, which was displayed at the Dubai Air Show in 2011.

== Operators ==
;{{SUD}}
*[[Sudanese Air Force]]<ref>{{cite web|url=http://www.eurofighter.com/eurofighter-world/airshows-events/dubai-air-show-2011/dubai-air-show-blog-2011.html|title=Eurofighter: Dubai Air Show 2011|publisher=Eurofighter|date=17 November 2011|access-date=10 July 2013|url-status=dead|archive-url=https://web.archive.org/web/20130515235448/http://www.eurofighter.com/eurofighter-world/airshows-events/dubai-air-show-2011/dubai-air-show-blog-2011.html|archive-date=15 May 2013}}</ref>
'''{{Flag|Somaliland}}'''<ref>{{Cite web |last=Radić |first=Aleksandar |date=2024-10-23 |title=Novo ratno vazduhoplovstvo osnovano sa srpskim avionima |url=https://www.balkansec.net/post/novo-ratno-vazduhoplovstvo-osnovano-sa-srpskim-avionima |access-date=2024-10-23 |website=Balkansec.net |language=bs}}</ref>
;{{SLO}}
*[[Slovenian Air Force and Air Defence|Slovenian Air Force]]<ref>{{cite web|url= https://www.flightglobal.com/pdfarchive/view/1997/1997%20-%202331.html |title= World Air Forces 1997 pg. 621 |publisher= flightglobal.com |access-date=3 May 2019}}</ref> → handed over entirely to aeroclubs for use
*[[Letalski center Maribor]] Civil operator (1989-2022)
;{{HRV}}
*[[Croatian Air Force]]
;{{BiH}}
*[[Air Force and Anti-Aircraft Defence of Bosnia and Herzegovina]]
;{{SRB}}
*[[Serbian Air Force and Air Defence|Serbian Air Force]]<ref>{{cite web|url= https://www.flightglobal.com/pdfarchive/view/1997/1997%20-%202331.html |title= World Air Forces 1997 pg. 71 |publisher= flightglobal.com |access-date=3 May 2019}}</ref>
;{{MNE}}
*[[Montenegrin Air Force]]
;{{flag|North Macedonia}}
*[[North Macedonia Air Brigade]]
;{{YUG}}
*[[Yugoslav Air Force]] → partially handed over for use to aeroclubs
==Specifications (UTVA 75A21)==
{{Aircraft specs
|ref=''Jane's All the World's Aircraft 1988-89'' <ref name=JAWA88-89>{{cite book |title=Jane's All the World's Aircraft 1988-89 |year=1988 |publisher=Jane's Information Group |location=London |isbn=0-7106-0867-5 |editor=John W.R. Taylor|pages=499–500}}</ref>
|prime units?=met
<!--
General characteristics
-->
|genhide=

|crew=2
|capacity= {{convert|210|kg|abbr=on}} max
|length m=7.11
|length ft=
|length in=
|length note=
|span m=9.73
|span ft=
|span in=
|span note=
|upper span m=
|upper span ft=
|upper span in=
|upper span note=
|mid span m=
|mid span ft=
|mid span in=
|mid span note=
|lower span m=
|lower span ft=
|lower span in=
|lower span note=
|swept m=<!-- swing-wings -->
|swept ft=<!-- swing-wings -->
|swept in=<!-- swing-wings -->
|swept note=
|dia m=<!-- airships etc -->
|dia ft=<!-- airships etc -->
|dia in=<!-- airships etc -->
|dia note=
|width m=<!-- if applicable -->
|width ft=<!-- if applicable -->
|width in=<!-- if applicable -->
|width note=
|height m=3.15
|height ft=
|height in=
|height note=
|wing area sqm=14.63
|wing area sqft=
|wing area note=
|swept area sqm=<!-- swing-wings -->
|swept area sqft=<!-- swing-wings -->
|swept area note=
|volume m3=<!-- lighter-than-air -->
|volume ft3=<!-- lighter-than-air -->
|volume note=
|aspect ratio=6.5
|airfoil=
|airfoil=
|empty weight main= 685 kg
|empty weight kg=685
|empty weight alt= 1,510 lb
|empty weight lb=
|loaded weight main=
|empty weight note=equipped
|loaded weight alt=
|gross weight kg=
|gross weight lb=
|useful load main= 40 kg
|gross weight note=
|useful load alt= 90 lb
|max takeoff weight main= 970 kg
|max takeoff weight kg=960
|max takeoff weight alt= 2,135 lb
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=standard:{{convert|160|L|USgal impgal|abbr=on}}: with drop tanks {{convert|360|L|USgal impgal|abbr=on}}
|lift kg=<!-- lighter-than-air -->
|lift lb=<!-- lighter-than-air -->
|lift note=
|more general=
|more general=
<!--
|engine (prop)=[[Lycoming IO-360]]-B1F
Powerplant
|type of prop=4 cylinder flat engine
-->
|number of props=1
|eng1 number=1
|power main= 180 hp
|eng1 name=[[Lycoming IO-360-B1F]]
|power alt=134 kW
|eng1 type=4-cyl. air-cooled horizontally-opposed piston engine
|eng1 kw=134
|eng1 hp=<!-- prop engines -->
|eng1 shp=<!-- prop engines -->
|eng1 kn=<!-- jet/rocket engines -->
|eng1 lbf=<!-- jet/rocket engines -->
|eng1 note=
|power original=
|power original=
|thrust original=
|max speed main= 215 km/h
|eng1 kn-ab=<!-- afterburners -->
|max speed alt= 116 kt
|eng1 lbf-ab=<!-- afterburners -->
|cruise speed main= 175 km/h (109 mph)
|cruise speed alt= 94 kt
|stall speed main= 100 km/h
|stall speed alt= 60 mph
|never exceed speed main= 270 km/h
|never exceed speed alt=
|range main= 800 km
|range alt= 500 mi
|ceiling main= 4,000 meters
|ceiling alt= 13,100 ft
|climb rate main= 240 m per minute
|climb rate alt=
|loading main=
|loading alt=
|power/mass main=
|power/mass alt=
|more performance=
|armament= Two fittings for light weapon loads under wings. Each can carry a bomb, 100 kg cargo container, two-round rocket launcher or machine gun pod.
|avionics= Bendix/King equipment standard, including dual KY 197 720-channel VHF com transceivers; KR 87 digitally tuned ADF with integral electronic flight timer and pushbutton elapsed timer. Optional equipment include: panel mounted R/Nav system comprising a KNS 81 200-channel nav, 40-channel glideslope indicator and 9-waypoint digital R/Nav computer, combined with a KI 525A pictorial nav indicator; KI 229 RMI; KN 53 200-channel VHF nav with integral 40-channel glideslope indicator and KI 525A indicator; KN 62A 200-channel DME with digital distance, ground speed and time-to-station; KT 79 all solid state digital transponder featuring cross-check readout of encoded altitude and automatic VFR code selection; and KMA 24 audio control console with integral marker beacon receiver. [http://www.utvaaviation.co.yu Info From Utva Main Website] {{Dead link|date=December 2009}}


|eng2 number=
|eng2 name=
|eng2 type=
|eng2 kw=<!-- prop engines -->
|eng2 hp=<!-- prop engines -->
|eng2 shp=<!-- prop engines -->
|eng2 kn=<!-- jet/rocket engines -->
|eng2 lbf=<!-- jet/rocket engines -->
|eng2 note=
|eng2 kn-ab=<!-- afterburners -->
|eng2 lbf-ab=<!-- afterburners -->

|eng3 number=
|eng3 name=
|eng3 type=
|eng3 kw=<!-- prop engines -->
|eng3 hp=<!-- prop engines -->
|eng3 shp=<!-- prop engines -->
|eng3 kn=<!-- jet/rocket engines -->
|eng3 lbf=<!-- jet/rocket engines -->
|eng3 note=
|eng3 kn-ab=<!-- afterburners -->
|eng3 lbf-ab=<!-- afterburners -->
|more power=

|prop blade number=2
|prop name=Hartzell HC-C2YK-1BF/F7666A variable-pitch metal propeller
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=<!-- propeller aircraft -->
|prop dia in=<!-- propeller aircraft -->
|prop dia note=

|rot number=<!-- helicopters -->
|rot dia m=<!-- helicopters -->
|rot dia ft=<!-- helicopters -->
|rot dia in=<!-- helicopters -->
|rot area sqm=<!-- helicopters -->
|rot area sqft=<!-- helicopters -->
|rot area note=
<!--
Performance
-->
|perfhide=

|max speed kmh=215
|max speed mph=
|max speed kts=
|max speed note=
|max speed mach=<!-- supersonic aircraft -->
|cruise speed kmh=165
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=95
|stall speed mph=
|stall speed kts=
|stall speed note=flaps up at idle
:::::{{convert|82|kph|mph kn|abbr=on}} 25° flap at idle
|never exceed speed kmh=270
|never exceed speed mph=168
|never exceed speed kts=146
|never exceed speed note=
|minimum control speed kmh=
|minimum control speed mph=
|minimum control speed kts=
|minimum control speed note=
|range km=800
|range miles=
|range nmi=
|range note=
|combat range km=
|combat range miles=
|combat range nmi=
|combat range note=
|ferry range km=2000
|ferry range miles=
|ferry range nmi=
|ferry range note=
|endurance=<!-- if range unknown -->
|ceiling m=4000
|ceiling ft=
|ceiling note=
|g limits=+4.4 -2.2
|roll rate=<!-- aerobatic -->
|glide ratio=<!-- sailplanes -->
|climb rate ms=4.5
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=<!-- sailplanes -->
|sink rate ftmin=<!-- sailplanes -->
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|disk loading kg/m2=
|disk loading lb/sqft=
|disk loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=

|more performance=
*'''Takeoff distance to 50 ft (15 m):''' 501 m grass at Sea Level
*'''Landing distance from 50 ft (15 m):''' 450 m grass at Sea Level
<!--

Armament
-->
|guns=
|bombs=
|rockets=
|missiles=
|hardpoints=2
|hardpoint capacity={{convert|150|kg|abbr=on}} each
|hardpoint rockets=2x RL 128-02 128 mm (HVAR-5) or 2x rocket launcher with 12 rockets 57 mm
|hardpoint missiles=
|hardpoint bombs=2x 120 kg bombs or 4x 50 kg bombs
|hardpoint other=2x [[AA-52 machine gun|MAC-AA-52 container with 7,62 mm]] or 2x cargo container 100 kg capacity or 2x drop tanks
'
|avionics=*''' standard''' (model 75) KING KR85 ADF and KING KY 195B <br>
*''' optional''' (model 75A catalog only) KING KR87 ADF, RNAV KING KNS81 VOR/LOC: KING KN 53, KING KY 197 Indicators: HSI KING KI 525A, and RMI KING KI 229, DME:KING KN 62A, Transponder: KING KT 79, Audio panel: KING KMA 24
}}
}}


==See also==
==See also==
{{Portal|Aviation}}
{{aircontent
{{aircontent
|see also=* [[Utva 66]]
|see also=* [[Utva 66]]
Line 98: Line 311:
}}
}}


==External links==
==References==
{{Commons category|UTVA-75}}
*[http://www.aerostip.tk Info for Air club "STIP"—user of Utva-75]
{{reflist}}


{{Utva aircraft}}
{{Utva aircraft}}
{{Military Technical Institute Belgrade}}
{{aviation lists}}

[[Category:Yugoslav military trainer aircraft 1970-1979]]
[[Category:Yugoslav civil trainer aircraft 1970-1979]]


[[Category:1970s Yugoslav military trainer aircraft]]
[[fr:Lola Utva 75]]
[[Category:1970s Yugoslav civil trainer aircraft]]
[[hr:Utva-75]]
[[it:Lola Utva 75]]
[[Category:UTVA aircraft|75]]
[[Category:Military Technical Institute Belgrade]]
[[sr:Утва 75]]
[[Category:Glider tugs]]
[[Category:Low-wing aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Aircraft first flown in 1976]]
[[Category:Aircraft with fixed tricycle landing gear]]
[[Category:Single-engined piston aircraft]]

Latest revision as of 02:00, 27 November 2024

UTVA 75
Serbian Air Force Utva 75
General information
TypeMilitary Trainer Aircraft / Civilian Trainer Aircraft
National origin Serbia
ManufacturerUTVA
StatusActive
Primary userSerbia Air Force
History
Introduction date1978
First flight19 May 1976[1]

The UTVA 75[2] is a light utility aircraft produced by the Serbian aircraft manufacturer UTVA. It was first introduced in the late 1970s and has since been used primarily for training, reconnaissance, and light transport roles. Known for its reliability and versatility, the UTVA 75 has been adopted by several military and civilian operators around the world.

Slovenian Utva-75
Utva-75 Serbian air force
Utva-75 Serbian RViPVO
Montenegrin Air Force Utva 75
Macedonian Utva-75
Utva Sova - further development of the aircraft
The sole SAFAT 03, developed from the UTVA 75.

The development of the UTVA 75 began in the early 1970s in response to a need for a new primary trainer aircraft for the Yugoslav Air Force. The first prototype took to the skies in 1976, and following successful testing, the aircraft entered production in 1978. Over the years, the UTVA 75 has seen various upgrades and modifications to enhance its performance and capabilities.

Designed in 1975 to replace the UTVA Aero 3 as the primary basic trainer in the Yugoslav Air Force. It features upward opening gull-wingtype access doors to the two-seat side-by-side cockpit. Another characteristic is a row of air scoops, presumably for cockpit ventilation, in the central front frame of the cockpit. The Utva 75 made its maiden flight in 1976. Between 1978 and 1985, a total of 136 UTVA 75s were produced for the former Yugoslav Air Force. Following the breakup of Yugoslavia, many were passed on to successor states such as Serbia, Slovenia, Croatia, Montenegro.

Development

[edit]

The UTVA 75 features a fully metallic, semi-monocoque airframe, which provides structural strength and durability. The aircraft is powered by a Lycoming O-360 engine, capable of delivering 210 horsepower. This engine configuration allows the aircraft to achieve a maximum speed of 209 km/h (113 knots) and a service ceiling of 4,178 meters (13,708 feet).

The low-wing design of the UTVA 75 contributes to its stability and maneuverability, which are essential for training and acrobatic maneuvers. The fixed landing gear ensures reliability and reduces maintenance complexity, making it easier for training operations. The cabin is ergonomically designed, featuring adjustable seats and pedals, and provides ample room for both pilots, enhancing comfort during long training sessions.

Design

[edit]

The UTVA 75 is designed[3] as a low-wing monoplane, emphasizing simplicity and robustness, ideal for training and light utility roles. Here are some detailed aspects of its design and development:

Airframe and Structure[4]

[edit]

The UTVA 75 features an all-metal construction, primarily using aluminum alloys, which provides a good balance between strength and weight. The low-wing configuration offers excellent visibility for the pilots, which is particularly beneficial during training flights and reconnaissance missions. The aircraft's fixed tricycle landing gear is designed to be sturdy and reliable, capable of operating from both paved runways and rough airstrips.

Powerplant

[edit]

The aircraft is powered by a single Lycoming IO-360 engine, a four-cylinder, air-cooled, horizontally opposed piston engine. This engine produces 180 horsepower, providing the UTVA 75 with sufficient power for its various roles. The engine is equipped with a two-blade fixed-pitch propeller, which is simple to maintain and operate.

Cockpit and Avionics

[edit]

The cockpit of the UTVA 75 is designed for two occupants, typically a student and an instructor in a side-by-side seating arrangement. This setup allows for effective communication and instruction during training flights. The aircraft is equipped with dual flight controls, ensuring that both the student and the instructor can operate the aircraft.

The avionics suite in the UTVA 75 is relatively basic, reflecting its primary role as a training aircraft. However, it includes all necessary instruments for VFR (Visual Flight Rules) flight, such as airspeed indicator, altimeter, vertical speed indicator, and a standard set of engine gauges. Some variants may be equipped with additional avionics for specific roles, such as navigation aids for the reconnaissance variant.

Operational history

[edit]

Performance and Handling[5]

[edit]

The UTVA 75 is designed to be a stable and forgiving aircraft, making it an excellent platform for primary flight training. Its low-wing configuration and moderate wing loading provide good low-speed handling characteristics and short takeoff and landing capabilities. The aircraft's control surfaces are large and responsive, contributing to its easy handling and maneuverability.

Modifications and Upgrades

[edit]

Over the years, the UTVA 75 has seen several modifications and upgrades to enhance its performance and adapt it to different roles. These modifications include reinforced landing gear for rough-field operations, additional fuel tanks for extended range, and various mission-specific equipment such as cameras and crop-dusting apparatus.

Operational Use

[edit]

The UTVA 75 has proven to be a versatile and reliable aircraft, serving in various roles beyond primary training. It has been used for aerial reconnaissance, light transport, liaison duties, and even agricultural applications. Its simple design and robust construction have made it a favorite among operators who require a dependable and easy-to-maintain aircraft.

Overall, the design of the UTVA 75 reflects its intended purpose as a multi-role utility aircraft. Its combination of simplicity, reliability, and versatility has ensured its continued use by both military and civilian operators around the world.

Variants

[edit]
UTVA 75A11
Single-seat agricultural aircraft, largely using the Utva 75 airframe.[6]
UTVA-75A21
Two-seater with dual controls and provisions for blind instrument flying.[6]
UTVA-75A41
Four-seater with advanced avionics, first flown in 1986.[6]
SAFAT 03
A development of the UTVA 75 from the SAFAT Aviation Complex at Khartoum, Sudan, with a modified fuselage and tail fin. To confuse matters the Sudanese Government marked up a standard UTVA 75 as a SAFAT 03. One example known, which was displayed at the Dubai Air Show in 2011.

Operators

[edit]
 Sudan

 Somaliland[8]

 Slovenia
 Croatia
 Bosnia and Herzegovina
 Serbia
 Montenegro
 North Macedonia
 Yugoslavia

Specifications (UTVA 75A21)

[edit]

Data from Jane's All the World's Aircraft 1988-89 [6]

General characteristics

  • Crew: 2
  • Capacity: 210 kg (460 lb) max
  • Length: 7.11 m (23 ft 4 in)
  • Wingspan: 9.73 m (31 ft 11 in)
  • Height: 3.15 m (10 ft 4 in)
  • Wing area: 14.63 m2 (157.5 sq ft)
  • Aspect ratio: 6.5
  • Empty weight: 685 kg (1,510 lb) equipped
  • Max takeoff weight: 960 kg (2,116 lb)
  • Fuel capacity: standard:160 L (42 US gal; 35 imp gal): with drop tanks 360 L (95 US gal; 79 imp gal)
  • Powerplant: 1 × Lycoming IO-360-B1F 4-cyl. air-cooled horizontally-opposed piston engine, 134 kW (180 hp)
  • Propellers: 2-bladed Hartzell HC-C2YK-1BF/F7666A variable-pitch metal propeller

Performance

  • Maximum speed: 215 km/h (134 mph, 116 kn)
  • Cruise speed: 165 km/h (103 mph, 89 kn)
  • Stall speed: 95 km/h (59 mph, 51 kn) flaps up at idle
82 km/h (51 mph; 44 kn) 25° flap at idle
  • Never exceed speed: 270 km/h (168 mph, 146 kn)
  • Range: 800 km (500 mi, 430 nmi)
  • Ferry range: 2,000 km (1,200 mi, 1,100 nmi)
  • Service ceiling: 4,000 m (13,000 ft)
  • g limits: +4.4 -2.2
  • Rate of climb: 4.5 m/s (890 ft/min)
  • Takeoff distance to 50 ft (15 m): 501 m grass at Sea Level
  • Landing distance from 50 ft (15 m): 450 m grass at Sea Level

Armament

  • Hardpoints: 2 with a capacity of 150 kg (330 lb) each, with provisions to carry combinations of:
    • Rockets: 2x RL 128-02 128 mm (HVAR-5) or 2x rocket launcher with 12 rockets 57 mm
    • Bombs: 2x 120 kg bombs or 4x 50 kg bombs
    • Other: 2x MAC-AA-52 container with 7,62 mm or 2x cargo container 100 kg capacity or 2x drop tanks

' Avionics

  • standard (model 75) KING KR85 ADF and KING KY 195B
  • optional (model 75A catalog only) KING KR87 ADF, RNAV KING KNS81 VOR/LOC: KING KN 53, KING KY 197 Indicators: HSI KING KI 525A, and RMI KING KI 229, DME:KING KN 62A, Transponder: KING KT 79, Audio panel: KING KMA 24

See also

[edit]

Aircraft of comparable role, configuration, and era

References

[edit]
Wikimedia Commons has media related to UTVA-75.
  1. ^ "Školski avion UTVA-75". Vojska Srbije. Retrieved 10 July 2013.
  2. ^ "UTVA Aircraft Industry". 6 January 2021.
  3. ^ Petrašinović, Danilo (Jul 2013). "Light aircraft UTVA 75". ResearchGate.
  4. ^ Aleksandar, Aleksandar (Jul 2013). "Light aircraft UTVA 75". ResearchGate.
  5. ^ "Flight Report – That 70s Plane: Flying The UTVA 75 Trainer". April 2018.
  6. ^ a b c d John W.R. Taylor, ed. (1988). Jane's All the World's Aircraft 1988-89. London: Jane's Information Group. pp. 499–500. ISBN 0-7106-0867-5.
  7. ^ "Eurofighter: Dubai Air Show 2011". Eurofighter. 17 November 2011. Archived from the original on 15 May 2013. Retrieved 10 July 2013.
  8. ^ Radić, Aleksandar (2024-10-23). "Novo ratno vazduhoplovstvo osnovano sa srpskim avionima". Balkansec.net (in Bosnian). Retrieved 2024-10-23.
  9. ^ "World Air Forces 1997 pg. 621". flightglobal.com. Retrieved 3 May 2019.
  10. ^ "World Air Forces 1997 pg. 71". flightglobal.com. Retrieved 3 May 2019.
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