USA Upgrading F-22 Raptor

It has proved so difficult and expensive to upgrade the F-22 Raptor, whose stealthy body contains sensors and electronic brains, that the U.S. Air Force may take the unprecedented step of threading what amounts to a second central nervous system into a fighter jet.

By introducing an open architecture to one of the world's most tightly knit proprietary systems, service officials hope to make it much cheaper and easier to insert new technology - even gear developed for the F-35 Lightning II - into the stealthy air-superiority fighter.

"This jet has a very highly integrated avionics system. Because of that tight coupling and that highly integrated nature, it makes it very difficult, and we are highly reliant upon [Raptor makers] Lockheed Martin and Boeing to do any kinds of modifications to the jet," said David Weber, deputy director of the F-22 System Program Office (SPO) at Wright-Patterson Air Force Base, Ohio.

Weber said the open-architecture effort is meant to allow the Air Force to open upgrade work to competition.

Today, he said, "the architecture is proprietary to Lockheed Martin, and we're kinda stuck with Lockheed Martin when we want to integrate something new."

Weber said the work is at such an early stage that the F-22 SPO has no guess how much it might cost.

This year, service officials plan to study the options, in part by issuing a request for information inviting contractors to suggest demonstration projects to help flesh out the alternatives.

"All of them have different ideas about how to go about doing this," Weber said.

In October through December, the service will award contracts to allow contractors to demonstrate ideas in a lab or flying testbed, said Col. John Williams, who runs the F-22 SPO's modernization office.

The SPO officials said Boeing and Lockheed would be welcome to bid on the demonstration contracts.

Lockheed, which had earlier proposed to essentially port the hardware and software architecture of the F-35 Lightning II into the Raptor, might respond to the Air Force solicitation with a similar proposal, said Jeff Babione, Lockheed's Raptor program manager. But Babione said the company might propose a different solution, depending on the service's requirements.

The Air Force will ultimately select one contractor to install the new architecture on its Raptors - ideally, said Weber, all 185 that will be built, less two losses.

"From our perspective, the fleet size is so small compared to where we wanted to be, our objective would be to make this applicable to all aircraft," he said.

The SPO deputy director said it may be deemed too costly to install the new architecture on the 34 oldest Raptors, which are currently used for training. Those planes are also not slated to get the Increment 3.2 upgrade, the next major group of hardware and software upgrades for the Raptor fleet.

But Weber noted that the new architecture might also make it cost-effective to bring those oldest Raptors up to the 3.2 standard.

If all goes well, development work could begin in earnest around 2014 as part of the development of Increment 3.2C, which is slated to begin installation in 2019 or 2020, he said.

GRAFTING ON

As currently envisioned, the new network would be grafted onto the F-22's existing avionics, Weber said. The twin-engine jet's current network would continue to carry data between existing components, while upgraded ones would be linked by the new network. The data from both architectures would be translated and fused so that the jet continues to operate as a cohesive whole.

The installation of the new architecture might happen in one step, or it might proceed piece by piece, Williams said.

"Potentially, you could do it multiple times based on what you're trying to open up," he said. "You're opening up the [communication, navigation and identification]; maybe you're opening up the radar more, something like that. You may actually have multiple guys doing it, but it will be to a common standard."

As more systems are ported over to the new architecture, the older systems would wither away.

"Gradually, you'd have to start migrating some of the functions that we currently have in our core integrated processor away from the core integrated processor, so that everything doesn't flow through that piece," Williams said.

It may or may not be possible to migrate all of the Raptor's functionality.

"It depends on the degree we can open up the architecture," Weber said.

Lockheed's Babione said it might not be cost-effective to move everything to the new system.

The F-22 has received one upgrade - called Increment 2 - since it first arrived on Air Force flight lines in 2005. Those upgrades have added the capability to drop two 1,000-pound Joint Direct Attack Munitions to the aircraft.

A planned upgrade, called Increment 3.1 and slated to begin this year, will add synthetic aperture radar mapping, the capability to carry eight Small Diameter Bombs, and other features.

In 2014, a software-only upgrade called Increment 3.2A will add electronic protection against jamming, better Link 16 receive capability and combat identification, and other improvements. In 2017, Increment 3.2B will add support for the plane's AIM-9X short-range and AIM-120D medium-range anti-air missiles, among many other upgrades.

In 2008, then-Pentagon acquisition chief John Young put the total cost of developing and installing Increment 3.1 and what became 3.2A and 3.2B at around $8 billion. The figure has likely gone up because the Air Force now plans to upgrade more F-22s.

Once the new architecture is installed, "if we want a new capability on the airplane, we can go out to industry with an RfI [request for information] and say, 'You all got good ideas; can you make it work with this architecture?'" Weber said.

The ultimate goal is to allow systems such as new radars to be "plug-and-play," as a printer might be to a desktop computer, he said.

This might allow the Raptor to use technology developed for the F-35 Lightning II without time-consuming and expensive integration work, Williams said

The IAF dilemma: To Upgrade Mirage Or Not To

The Indian Air Force has a dilemma: should it go ahead and upgrade it’s 51-strong Mirage fleet or purchase new fighters for Mirages’ specific role? Talks between the Ministry of Defence and Mirage’s French manufacturer Dassault are in the final stage and a decision is expected soon.

Upgrade of the French Dassault M2000 fighter aircraft would cost a whopping Rs 14,400 crore but it does not include the cost of procuring new weaponry worth Rs 80 crore.

If the Defence Ministry and the manufacturer sign the agreement, Dassault will supply four upgraded aircraft and kits to upgrade the remaining 47 aircraft to Hindustan Aeronautics Limited. Roughly Rs 4,500 crore is to be spent by HAL on the upgrade. It will also charge nearly Rs 900 crore for the furnished items.

A section of the IAF top brass feels that the upgrade cost is too high as the officers say that buying a new fighter would work out cheaper.

“Avionics and weaponry are complementary but their capabilities don’t always match. The upgrade process is very complicated and thorough and has to be very convincing for it to be approved,” said Air Marshal (retired) D. Keeler - hero of the 1965 and 1971 Indo-Pak wars. Mirage fighters were inducted in the IAF during Keeler’s tenure in the mid-eighties. “Upgradation is always planned on the future lifespan of the airframe and engines,” he added.

New weapons required to be fitted in the proposed upgraded aircraft include BVR (RF) MICA missiles, IR MICA missiles, conventional weapons and smart guided weapons with standoff capabilities, and air-to-surface weapons.

Incidentally, Dassault fighter Rafale has been shortlisted along with Eurofighter Typhoon in the over $10.5 billion deal for 126 Medium Multi Role-Combat Aircraft (MMRCA). Two American, one Swedish and one Russian rival firm are out of the race.

The Eurofighter is said to having an edge over Rafale. Dassault sees this as a ‘win-win situation’: If it fails to get the MMRCA deal, it is confident of clinching the Mirage upgrade deal. Purchasing new Mirages is not an option now as France has closed the production line, presumably to avoid competition between Mirage 2000 and the Rafale. When last produced in 2007, the estimated price of a Mirage 2000-09 was Rs 30-35 million.

The first batch of 40 Mirage aircraft was delivered during 1986-87, the second batch of nine during 1988-89 and the third batch of 10 aircraft during 2003-04. Of these 59 aircraft, only 51 are now in the fleet. The rest have been lost.

The proposal is to upgrade all 51 aircraft to extend their operational life and update their capability. The ‘cardinal points’ of the proposal include: no airframe modifications, no changes to major aircraft systems, no modification to equipment bays, limited cockpit modifications, minimum retrofit line modification facilities/activities, and, most significantly, it does not cover the cost of supply of weapons.

As the purpose of the upgrade is to bring the IAF’s Mirage 2000 fleet up to the standard of the Mirage 2000-5 Mk2, which is used by the French and sold as the Mirage 2000-09, would it not be a better option to ascertain whether any country wants to sell some or all of its inventory at a more competitive cost than that represented by the upgrade, questions the anti-upgrade lobby within the IAF.

India had reportedly talked to Qatar, which was looking to sell its Mirage 2000-09 fleet of 12 aircraft. The talks failed as Qatar’s price expectations could not be met. Some senior officers are of the view that this setback does not preclude the attempt to identify another source, provided that the price is reasonable and that there is sufficient service life remaining to justify the acquisition.

India must negotiate and conclude contracts for the upgrade of Mirage fighters and procurement of weapons simultaneously, advise senior IAF officers. Otherwise, they warn, weapon manufacturers will dictate their ‘expensive terms’ later.

India to sign $2.4bn Mirage upgrade deal with France

Faced with a dual threat from China and Pakistan, which have even come together to manufacture fighter jets, India is really cranking up military aviation contracts. Even as the $4.1 billion deal for 10 American C-17 Globemaster-III strategic airlift aircraft awaits the final nod from the Cabinet Committee on Security (CCS), another major contract is now headed that way.

Defence ministry sources on Wednesday said the long-awaited deal with France for the upgrade of 52 Mirage-2000 multi-role fighters in IAF's combat fleet is "finally ready" at a cost of almost Rs 11,000 crore ($2.4 billion).

"This is also now going to CCS for approval. Another big contract, which was being progressed simultaneously, for around 450 MICA (interception and aerial combat missiles) systems to arm the upgraded Mirages is also in the final stages now," said a source.

This comes after long-drawn negotiations with French companies Dassault Aviation (aircraft manufacturer), Thales (weapons systems integrator) and MBDA (missile supplier), which were "initially asking for much more", said sources.

Under the contract, the first four to six Mirages will be upgraded in France, while the rest will be retrofitted in India by Hindustan Aeronautics Ltd (HAL) with transfer of technology from the French companies.

This means the overall Mirage upgrade package, including the fire-and-forget MICA missiles and the infrastructure build-up at HAL, will eventually cross the Rs 15,000-crore mark.

It obviously raises questions whether it would be more prudent to simply buy new fighters rather than upgrade older ones at such a huge cost. IAF, however, argues the "retrofitted" Mirages -- with new avionics, radars, mission computers, glass cockpits, helmet-mounted displays, electronic warfare suites, weapon delivery and precision-targeting systems -- would remain "top-notch fighters" for almost two decades more.

With a depleting number of fighter squadrons (each has 16 to 18 jets), down to just 32 from a `sanctioned strength' of 39.5, IAF is going for a mix of upgrades and new inductions to stem its fast-eroding combat edge over even Pakistan.

There is, for instance, the ongoing upgrade of 63 MiG-29s under a $964 million deal inked with Russia in March 2008. Then, India is also progressively inducting the 272 Sukhoi-30MKIs contracted from Russia for around $12 billion. Moreover, the first lot of the around 120 indigenous Tejas Light Combat Aircraft will begin joining the force from end-2013 onwards.

India also wants to ink by December this year the $10.4 billion project for 126 medium multi-role combat aircraft (MMRCA), in which only the French Rafale and Eurofighter Typhoons are now left in contention after ejection of the American, Russian and Swedish jets.

On top of this all, India hopes to begin inducting 250-300 advanced stealth fifth-generation fighter aircraft (FGFA), being co-developed with Russia, from 2020 onwards, in what will be its biggest-ever defence project at around $35 billion.