|Sukhoi PAK-FA T-50|
|First flight||29 January 2010|
|Entered service||In development (expected to enter service in 2016)|
|Produced||5 (Only prototypes)|
|Wing area||78.8 m2|
|Maximum takeoff||37,000 kg|
|Power (each)||New engine with 180 kN (prototype 147 kN) dry thrust: 86,29 kN|
|Maximum speed||Mach 2.5 (3000 km/h)|
|Cruising speed||Mach 1.7-1.8|
|Rate of climb||350 m/s|
The Sukhoi PAK-FA is a twin engine stealth multirole fighter being developed by Sukhoi OKB and HAL under a joint venture. The current prototype is T-50. The Aircraft will have 3D TVC, super manveuverability, stealth features, internal bays, it was built to compete with the F-22 Raptor of the U.S. Air Force.
The Sukhoi PAK-FA was developed to replace the Sukhoi Su-27 Flanker and MiG-29 Fulcrum 4th Gen Fighters of the Russian Air Force.
It is expected that the PAK-FA will be equipped a 1500 transmit AESA radar, based on the Irbis-E of the Su-35, which is the second Russian AESA radar. Additionally, it will have two L-band radars on the wing tip sections and a small second X-band on its tail, providing 360 degree radar coverage. It will also feature an advanced IRST (Infrared search and Track) sensor.
The PAK-FA´s aerodynamics are going to be highly competitive against the F-22A and YF-23A designs it´s biggest trade will be it´s high agility, it features:
- Full moveable LERX and stabilizators
- A 3D thrust vector system
- A good thrust to weight ratio
- Low wing loading
When looking on the video of the PAK-FA´s first flight it can be seen that the PAK-FA absolved takeoff without using its horizontal stabilizators, meaning that it gained altitude only with the use of it´s aerodynamic capabilities. In fact, other than the PAK-FA, only the F-22 Raptor is able to take-off only with accelerating and without pitching up.
The PAK-FA is also the first Russian aircraft with real stealth capabilities. The key features of the PAK-FAs Stealth capability are the faceted design on the intakes and the paralleled edges. However it has a limited stealth design when comparing it to other fighter of its class.