PAK-FA, T-50: News #2

KRET created a new navigation system for the T-50

Development provides integration with the Russian military constellation



Concern " Radio-electronic technology " has created an upgraded Strapdown Inertial Navigation Systems BINS-SP2M for the fifth-generation fighter T-50 (PAK FA) , it autonomously handles navigation and flight information, determines the position and motion parameters in the absence of satellite navigation, and provides integration with the military constellation of satellites and Russian GLONASS.

Guaranteed lifecycle BINS-SP2M least 10 thousand hours - almost twice larger than that of foreign counterparts. Moreover, the Russian system has better performance characteristics and is universal, can be installed not only in air but also to marine and terrestrial equipment.

Navigation system SINS-SP2M for the T-50 was developed by enterprises KRET - Moscow Institute of Electromechanics and Automation (MIEA) and Ramenskoye plant (RPGs). The equipment is constructed on the basis of laser gyros and accelerometers quartz (instruments for measuring acceleration of moving objects).

"Deep integration BINS-SP2M space systems PAK FA will make more efficient in the framework of network-centric warfare, requires a combination of air, land and naval forces into a single network, - said General Director Nikolai Kolesov KRET. - Concern Enterprises are working on a few more unique highly intelligent systems for future combat aircraft and helicopters. These developments will enhance the survivability and effectiveness of military equipment, as well as enhance the ability of Russian Air Force. "

Previous version BINS-SP2 was installed and tested on board the world's most powerful Russian fighter 4 ++ generation Su-35S. In combat aircraft used fifth-generation technologies that provide superior fighter aircraft of the same class.

KRET - Russia's largest holding company in the electronic industry. Formed in 2009. Is a member of the State Corporation Rostec. The main activities - development and production of complex systems and avionics (avionics) for civil and military aircraft, radar (radar) air-based recognition of the state (GO), a complex electronic warfare (EW), instrumentation for various purposes (IA ), electrical connectors, connectors and cable assemblies. In addition, the enterprise group producing modern household and medical equipment, equipment and control systems for the fuel and energy sector, transport and engineering. The concern is 97 research institutes, design bureaus and production plants.

http://rostec.ru/news/4515103

Austin wrote:New Engine Type 30: 3 -stage LPC; 5 -stage HPC (see pics) and single staged turbine.

Stealthflanker wrote:

Firebird wrote:

I wonder how the next gen engines will translate in terms of performance for the Pak Fa?

Whether it will be increased top speed and agility?
Or extended range? Or just more reliability/less maintenance due to it working at a lower % of max power?

Its interesting how the replacement for the Mig31 will see top speed go from Mach3.2 to around 4.3 or so as I recall.

I don't think the Pak Fa increase over 4G jets will be anywhere near as dramatic, but it would be interesting to see what would be possible, or chosen.

EDIT I've read Mach 2.3 top speed. I wonder if more is possible?

Well top speed doesn't really matter now, the more important thing is "supercruise" How long it can maintain supersonic speed without use of afterburning.

Next gen engine for PAKFA however will likely impact reliability, giving the engine longer life and more dry thrust for higher supersonic cruising speed.

GarryB wrote:The MiG-31 and F-22 are two different routes to the same thing.

All the advantages of supercruising are based on speed... in other words flying faster and higher means you are firing arrows from the top of a high hill and the enemy is shooting up at you... you get a significant gravity advantage as your missiles are going down hill and theirs have to climb the hill.

The high flight speed adds energy to your missiles so they go further, while their missiles need to be moving faster when they get to you to catch your aircraft. This means your range is extended and his is shortened.

The other advantage is that you can cover greater areas faster, whereas in a conventional aircraft they can accelerate to your speed but their range and time on station is radically reduced because although they can fly fast they can fly fast for long.

the difference is that the MiG-31 does it will a huge supply of onboard fuel while the F-22 uses superior engine technology.

In practical terms however the F-22 is in the same boat as other fighters because to get its super cruise advantage it has to fly higher and faster than the threat and when supercruising at mach 1.5 it has excellent range and performance characteristics, but against the MiG-31 flying at mach 2.4 it comes up short.

Sure the MiG is using a lot more fuel... but it carries lots of fuel and is designed to fly that fast as part of its interception mission, whereas most other fighters have comparable top speeds but almost never achieve them operationally because accelerating to that speed takes quite a bit of time and burns enormous amounts of fuel.

the MiG is in its element at high alt and high speed.

Stealthflanker wrote:

magnumcromagnon wrote:BTW, speaking about supercruise...why do people claim that ability as a '5th gen' attribute? I thought the Mig-31 had superior supercruise capability than the F-22, despite starting production decades before the F-22 started production? The so called 'F-35' is set to lose the ability to supercrusie, so is it no longer a necessary '5th gen' attribute according to Lockheed Martin?

Because the MiG had to use afterburners to go supersonic.

While the F-22's supercruise can be achieved without using afterburner, that's the only differences.

Important feature of F-22 engine and the Russian AL-41F and PAKFA's engine is higher Turbine inlet or Rotor inlet temperature compared to "non-supercruise fighter" This allow higher "dry thrust" Without using afterburner thus allow supersonic speed to be achieved. Not using afterburner meaning more fuel efficiency compared to those using afterburner, which would mean supersonic speed can be sustained at longer time.

One can easily compare the differences of fuel efficiency (In terms of SFC-Specific Fuel Consumption) between engine that has high turbine inlet temperature (supercruising engine) Vs Engine that use afterburner.

Vann7 wrote:Maybe is me.. but Russia development with pak-fa is being done at an incredibly slow speed. I mean 2017 to just start testing an engine? at that rate pak-fa might enter in service in a decade.  
They should cancel it and take the money for a real massive tactical next generation high altitude stealth bomber.
If not use the money for a stealth Kirov Class cruiser with S-500s defenses. that will be more cooler..

GarryB wrote:

However, think about this. MiG-17 (sans suffixe) with nonafterburning VK-1 engine (with a centrifugal compressor) would go supersonic, and yes, of course, in level flight.

Late model MiG-17s had AB and the MiG-17 is called a transsonic fighter because it had to go into a dive and run on full power to break the speed of sound.

GarryB wrote:Ummm... I quoted what you said and you said

"However, think about this. MiG-17 (sans suffixe) with nonafterburning VK-1 engine (with a centrifugal compressor) would go supersonic, and yes, of course, in level flight."

Now you claim you meant the MiG-17F with afterburning engine when in the quote above you clearly state MiG-17 without suffix and with a non afterburning engine...

Vann7 wrote:Maybe is me.. but Russia development with pak-fa is being done at an incredibly slow speed. I mean 2017 to just start testing an engine? at that rate pak-fa might enter in service in a decade.