.jpg "Yak-141 Freestyle Multipurpose fighter with VTOL. First flight: 1986/87 © Konstantinos Panitsidis")
In numbers Through the lens Video
NATO reporting name: Freestyle
VTOL: Vertical Take-off and Landing (Aircraft)
V/STOL: Vertical / Short Take-off and Landing (Aircraft).
Type: Multipurpose fighter aircraft
Yak-141 - Supersonic multipurpose vertical takeoff and landing fighter, was developed by OKB Yakovlev. The fighter was developed in the mid-1970s as an interceptor and close maneuver combat and secondarily for strikes against ground and surface targets. The first flight was performed (as aircraft) by test pilot A.A. Sinitsin March 9, 1987.
A total of four Yak-141 prototypes were produced:
-"izdeliye 48-0" (prototype reg.) - was intended for static tests.
-"izdeliye 48-1" (prototype with reg.48) - the prototype was intended for testing and research on the bench and moments, as well as the functioning of the power plant.
-“izdeliye 48-2” (prototype with reg.75) - the first flight prototype, the second of a series of Yak-141 prototypes, was first shown at the Farnborough Air Show in 1992 (reg.141). After demonstrations at MAKS-93 and 95, the fighter was transferred to the Yakovlev Design Bureau Museum, since 2009 the Yak-141 was transferred to the Vadim Zadorozhny Museum of Technology (number 75).
-"izdeliye 48-3" (prototype with reg.77) - pre-production fighter, October 5, 1991 crashed, was later restored and transferred as a ground exhibit to the Central Museum of the Russian Air Force in Monino.
On the Yak-141 aircraft, 12 world records registered by the FAI were set. Class H (VTOL), N (STOL). Group III. Turbojet.
| Date | Record | Result |
| 11.04.1991 | Rise time for 12 km without load | 116.15 sec |
| 11.04.1991 | Rise time for 12 km with 1 ton of cargo | 116.15 sec |
| 12.04.1991 | Rise time for 3 km with 1 ton of cargo | 62.41 sec |
| 12.04.1991 | Rise time for 6 km with 1 ton of cargo | 74.37 sec |
| 12.04.1991 | Rise time for 9 km with 1 ton of cargo | 89.09 sec |
| 24.04.1991 | The largest load, lifted on 2 km | 2.507 kg |
| 25.04.1991 | Flight altitude with 1 ton of cargo | 13.115 m |
| 25.04.1991 | Flight altitude with 2 ton of cargo | 13.115 m |
| 25.04.1991 | Rise time for 3 km with 2 ton of cargo | 68.82 sec |
| 25.04.1991 | Rise time for 6 km with 2 ton of cargo | 88.88 sec |
| 25.04.1991 | Rise time for 9 km with 2 ton of cargo | 110.10 sec |
| 25.04.1991 | Rise time for 12 km with 2 ton of cargo | 130.64 sec |
Brief technical description:
Power Plant: one turbofan R-79V-300 and two RD-41 lift engines.
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| Yak-141 Air intake engine. |
Technical characteristics R-79-300
| Thrust | 15.703 kgf |
| Dry weight | 1.850 kg |
| Diameter | 1,39 m |
| Engine length | 4,78 m |
| Bypass ratio | 0,81 |
| Specific fuel consumption | 0,169 (kg/h)/N |
| Air flow rate | 180 kg/sec |
| Pressure ratio | 22 |
| Temperature of the gas at the turbine intake | 1.630 K |
Power Plant: one turbofan R-79V-300 and two RD-41 lift engines.
Technical characteristics RD-41
| Thrust | 4.620 kgf |
| Dry weight | - |
| Diameter | 0,635 m |
| Engine length | 1,700 m |
| Bypass ratio | - |
| Specific fuel consumption | - |
| Air flow rate | 55 kg/sec |
| Temperature of the gas at the turbine intake | 1.735 K |
Equipment:
A radar Zhuk Doppler type with the capability of target aiming, low firing ant other features.
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Detection range more 100 km. Range for target jamming 80 km. Number of simultaneously tracked targets 8-12.
Number of simultaneous attacks against targets 2-4.
TYPICAL ARMAMENT CONFIGURATION OF THE Yak-141 INCLUDES:
Three-view drawing
Technical specifications
| DESIGNER | OKB Yakovlev |
| COUNTRY | Russia |
| TYPE |
Multipurpose fighter with VTOL
|
| CREW | 2 |
| POWER-PLANT | One turbojet engine with afterburning and two turbojet engines RD-41 |
| Thrust, kgf | |
| - main turbojet engine with control thrust nozzle | 1x15.000 |
| - two turbojet engines lifting | 2x4.260 |
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DIMENSIONS
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Length, m
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18,30 |
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Height, m
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5,00 |
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Wing span, m
|
|
| - complete | 10,10 |
| - with folding | 5,90 |
| Wing area, m2 | 31,70 |
| WEIGHT | |
| Maximum take-off weight (with STOL-120 m), kg | 19.500 |
| Maximum take-off weight (with STOL), kg | 15.800 |
| Empty aircraft, kg | - |
| Internal fuel, kg | 4.400 |
| Weight of transported fuels with external tank, kg | 1.750 |
| Warload, kg | - |
| PERFORMANCE | |
| Maximum speed (at high altitude 11.000 m), km/h | 1.800 |
| Maximum speed in low height, km/h | 1.250 |
| Ferry range, km | |
| - using vertical take-off (at low altitude) | 650 |
| - using vertical takeoff (at a high altitude of 10.000-12.000 m) | 1.400 |
| Range, km | |
| - at low altitude | 1.010 |
| - at a high altitude of 10.000-12.000 m | 1.400 |
| - at a high altitude of 10,000-12,000 m using external fuel tanks | 2.100 |
| Combat range, km | 690 |
| Endurance, h | 1,5 |
| Rate of climb, m/min | - |
| Service ceiling, m | 15.000 |
| Maximum overload, g | 7 |
| ARMAMENT | 1x30 mm cannon GSh-301 with 120 rounds. Number external hardpoints: 4 - 6. Transportation of weapons: Air-to-air missile R-77 or R-27, R-73 or R-60. Anti-ship missile Kh-25, Kh-31, pods with 23 mm cannons or rokets 80-240 mm, 6 bombs 500 kg. |
Photos Yak-141 (Yak-41)
