F-35C Tailhook Design Blamed for Landing Issues

Lockheed Martin has traced the U.S. Navy F-35C Joint Strike Fighter’s troubles with catching a carrier’s arresting gear wires to the tailhook design.
Efforts to fix the problem are well underway, a top company official said.
“The good news is that it’s fairly straight forward and isolated to the hook itself,” said Tom Burbage, Lockheed program manager for the F-35 program. “It doesn’t have secondary effects going into the rest of the airplane.”


Moreover, the rest of the design of the tailhook system, which include the doors and bay that conceal the device and other ancillary hardware, is sound, Burbage said.
“What we are trying to do is make sure that we got the actual design of the hook is optimized so that it in fact repeatedly picks up the wire as long the airplane puts itself in position to do that,” he said.
A preliminary review has already been completed and was done in conjunction with the Naval Air Systems Command and F-35 Joint Program Office.
Burbage said the hook system is already being modified in accordance with the new test data.
“We’re modifying the hook to accommodate what we found so far in test,” Burbage said. “The new parts, we expect to have them back in the next couple of months.”
Tests with the newly modified tailhook should start at Lakehurst, N.J, in the second quarter of this year, Burbage said.
That will give the F-35 program another set of data to study to make sure the new design works as promised. However, until those tests are done, there is no ironclad guarantee that the redesign of the tailhook will work, but Burbage said he is confident of that the modified design will be successful.
“The big test for this airplane is not until the summer of ’13 when we take the Navy jet out to the big deck carrier and do actual traps at sea,” Burbage said.
Burbage dismisses claims that the F-35C will be unable to land on a carrier as falsehoods.
“That’s patently not true,” he said.


Richard Aboulafia, an analyst at the Teal Group, Fairfax, Va., said the claim that the F-35C could never land on a ship was always highly dubious.
“They turned the YF-17 into a carrier plane, why couldn’t they correct carrier-hook problems here?” he said. “This does not appear to be a killer problem.”
Flight testing is designed to uncover and fix problems with a new aircraft, Aboulafia said.
“This is the kind of problem that might come out during the flight testing of a carrier-based plane,” he said.
Aboulafia added that the F-35 is an extremely ambitious program with its three variants — technical problems are par for the course.
The reason the problem with the hook arose in the first place is because of the inherent constraints of building a stealth fighter, said Burbage. The F-35 is the first naval stealth fighter and as such, Lockheed had the unique challenge of designing the jet with a tail-hook that had to be concealed when it’s not being used.
Because the tail-hook has to fit within the outer mold line of the F-35, the device had to be fitted further forward on the jet’s ventral surface than on other naval aircraft, Burbage said. The result is that the hook behaves differently than on previous fighters like the F/A-18.
In an ideal world, an arresting-hook will catch a wire 100 percent of the time, however in the real world that doesn’t happen due to various dynamic forces, the veteran former Navy test pilot said.


In the case of the F-35, one of those dynamic forces includes the way the wires react when the jet passes over them. The wire reacts in a sine wave pattern, Burbage said. “The time differential between when the main gear rolls over the cable and the time the hook picks up the cable on a more convention airplane, there is more time for that wave to damp out,” he said. “In the case of the F-35, one of our design constraints is that hook just has to be closer to the main landing gear than on a conventional aircraft because of the requirement to hide it inside the airplane.”
Another factor that effects landing on a carrier is the sheer force of the impact from a carrier landing. Unlike conventional land-based aircraft, naval aircraft don’t flare on landing. While the landing is on a more precise spot, it causes the tail-hook to oscillate vertically- which increases the chances that it won’t catch a wire, Burbage said. The dampening of that motion has to be tweaked, he said.
The shape of the hook itself also has an effect on the probability of catching a wire, he added. All of these are being tweaked to increase the chances that the F-35C will catch a wire on a carrier’s deck.
“We’re doing a redesign of the hook to increase the probability the hook will engage the wire a high percentage of the time,” Burbage said.

EADS Chief: French Support of UAV ‘Encouraging’

HAMBURG, Germany — The French Defense Minister’s preference for a broad European scope to a planned Anglo-French medium-altitude long-altitude UAV was a positive sign for EADS, Chief Executive Louis Gallois of the European company said Jan. 17.

“You have seen Mr. Longuet was pushing for a program with other European countries, including Germany and Italy,” Gallois told journalists on the sidelines of a joint New Year’s press conference by EADS and Airbus, here.

“I think it’s encouraging for us to push the way we’re pushing,” Gallois said.

Defense Minister Gérard Longuet told the French aerospace press club Jan. 9 the Anglo-French project “should accept the construction of Europe.

“We can’t ignore countries with industrial capabilities. We’ll probably have an Anglo-French project which cannot avoid opening to other European partners,” Longuet said.

France would not develop the EADS Talarion Advanced UAV, Longuet said.

Gallois has urged the British and French governments to open up a proposed new MALE UAV to include EADS and other European partners, to avoid a repetition of the Eurofighter Typhoon versus Rafale dogfight which has divided European industry into an internecine battle for foreign sales.

“Talarion is a prototype, it’s not a final project,” Gallois said.

A top priority for EADS in its talks with the governments of its “home countries” was to preserve research and development capabilities through the launch of new program, made possible by cuts in some defense orders, Gallois said.

The Talarion UAV was a potential for such new program support, he said.

EADS is waiting for a decision from the German government for a go ahead with Talarion, a company spokesman said. EADS has some 160 engineers working on UAVs and is funding the work on company money. In the face of defense budget cuts in Europe, one of EADS’ priorities for 2012 was to increase export efforts and grow its “global footprint,” Gallois said.

The company was also in talks with home country governments, particularly Germany, on “existing and valid” military contracts, he said.

Germany has said it wants to cut the orders for Tiger attack and NH90 transport utility helicopters.

“We have to discuss with them,” Gallois said. “We have our interest to defend regarding workload in our facilities, profitability, future of the product, the balance between Germany and other countries “We include in that the possibility to be part of new programs which could be financed with part of the savings on quantities. It means we are open to discussion,” Gallois said.

“As always, we want to have that decision as quickly as possible as we don’t like uncertainty,” he said.

EADS and Finmeccanica signed a deal in December to team on UAV development, reflecting wider discontent in Italy and Germany over the Anglo-French defense accord reached on Nov. 2, 2010.

The planned Anglo-French MALE drone was one of the projects included in the bilateral treaty. BAE Systems and Dassault have formed a joint venture to bid for the joint UAV program.

Airbus: A400M Interim Service Deal Expected Soon

 

An Airbus A400M takes off at the Toulouse-Blagnac airport in Blagnac, France last October. / Pascal Pavani / AFP via Getty Images

HAMBURG, Germany — Airbus expects to reach an agreement on an interim service contract for the A400M airlifter in a matter of weeks, Fabrice Bregier, chief operating officer of the European aircraft maker, said Jan. 17.

Talks with France for a maintenance contract have dragged on for months. In October, French procurement chief Laurent Collet-Billon to threatened to withhold payment if a service support deal was not ready when the first transport aircraft is delivered to the air force.

“We hope to finalize in the coming weeks,” Bregier said at a joint Airbus-EADS press conference here.

Bregier said the initial deal would be an interim agreement to be extended to the full fleet for Britain and France, the first countries to take delivery of the four-engine A400M aircraft.

The talks have been complicated by difficulties between prime contractor Airbus and the companies in the Europrop International (EPI) engine consortium, French Defense Minister Gérard Longuet said Jan. 9.

“On engine maintenance, everyone is looking at everyone else and wondering what risk he can reasonably take on,” Longuet told the French aerospace press club.

“What we want is a global service agreement with someone who signs and assumes an undertaking,” Longuet said. “On the other side, companies are looking at each other and saying this is going to cost a fortune in lawyers and experts.”

Airbus Military, a subsidiary of Airbus and EADS, makes the A400M. EPI builds the plane’s TP400-D6 engine. The EPI consortium includes ITP of Spain, MTU of Germany, Rolls-Royce of Britain, and Snecma of France’s Safran group.

EADS CEO Louis Gallois said earlier the A380 superjumbo airliner and A400M programs “are now on track.”

Those programs would help boost EADS’ profitability in 2012. Higher aircraft deliveries, improving prices, cost-savings programs and ambitious profitability targets at the division level would also help, he said.

Under a revised scheduled, France is due to take delivery of the first A400M in 2013, with Britain to follow in 2014. Airbus Military hopes to ship the French aircraft by the end of this year, ahead of the contracted date.

France announced at the Paris Air Show in June a memorandum of understanding to cover A400M maintenance, with common support to be shared by Britain and France. Germany has made its own national arrangements for service.

India Hopes To Unveil Fighter Deal in 2 Weeks

NEW DELHI — India hopes to unveil within two weeks the winner of a $12-billion fighter jet deal for which France’s Dassault and the Eurofighter consortium are on a final short list, the air force said Jan. 17.

“Right now we have to do the selection for who is going to be the short-listed vendor,” Indian Air Force chief N.A.K. Browne said in New Delhi. “I am hopeful that in another two weeks time, we will be able to short list the name,” Browne told reporters on the sidelines of a military function, the Press Trust of India news agency reported.

The contract is one of the biggest under consideration in the global defense aviation industry at the moment.

The air force chief said final commercial negotiations would only start after India announced the lowest bidder.

Officials say “life-cycle” maintenance costs of each plane will determine the winner of the deal. The contract is for the outright purchase of 18 combat aircraft with another 108 to be built in India with options to acquire more.

India last April cut out U.S. bidders Boeing and Lockheed Martin as well as dropping Sweden’s Saab AB and the Russian makers of the MiG 35 from the race.

Such a large order attracted intense lobbying during visits to India last year by U.S. President Barack Obama, French President Nicolas Sarkozy, British Prime Minister David Cameron and Russian President Dmitry Medvedev.

India, the biggest importer of military hardware among emerging nations, issued the request for proposals in 2007 and trials of aircraft from the six companies competing for the deal began a year later.

U.S., Allies Plot Next Steps on Post-Kim N. Korea

WASHINGTON — Senior officials from the United States and close allies South Korea and Japan met Jan. 17 to coordinate their next steps on North Korea amid deep concern following the death of leader Kim Jong-Il.

The United States was considering a new engagement drive with North Korea when Kim suddenly died on Dec. 17, leaving control of the isolated and nuclear-armed state to his young and inexperienced son Kim Jong-Un.

Kurt Campbell, the top U.S. diplomat on Asia, went into a day of closed-door talks with his Japanese counterpart Shinsuke Sugiyama and Lim Sung-Nam, South Korea’s envoy to stalled nuclear talks on North Korea, a U.S. official said.

State Department spokeswoman Victoria Nuland said Jan. 13 that the talks “will focus on ensuring that we’re well coordinated on our policy towards North Korea” and also look at “broader regional issues writ large.”

The three countries comprise half of the six nations involved in years of diplomacy on North Korea’s denuclearization. The talks also involved China, Russia and Pyongyang itself.

North Korea stormed out of talks in April 2009 to protest what it described as U.S. hostility. It has since sought to resume dialogue, but the United States has insisted that Pyongyang clearly recommit to agreements on denuclearization.

In hopes of keeping open channels of communication, the United States held two rounds of talks with North Korea last year in New York and Geneva.

A third round was reportedly scheduled in Beijing before the announcement of Kim’s death put the process on hold. The North said last week that Washington had offered it food aid and a suspension of sanctions if it halts its uranium enrichment program.

Nuland last week denied that the United States was linking food to politics and said Washington was still considering North Korea’s longstanding requests for food assistance.

“Our decision will be based on our assessment of need and our ability to monitor what we might be able to provide,” she said.

Christian-oriented U.S. aid groups have said for months that North Korea desperately needs food assistance to save lives. But some South Korean policymakers and U.S. lawmakers accuse the North of exaggerating its needs.

Britain To Reduce Nepalese Force Amid Defense Cuts

LONDON — About 400 of Britain’s Nepalese Gurkha fighters will lose their jobs as part of defense cuts, which will include more than 4,000 posts slashed from the armed forces in total, announced on Jan. 17.

The Ministry of Defence said up to 2,900 British army jobs would be axed along with 1,000 air force and 300 navy positions as Britain’s coalition government takes further steps to slash a record deficit.

The steep cuts to the 3,500-strong Gurkha brigade, which has been part of the British army for nearly two centuries, follow a successful campaign in 2009 to win better rights for the Nepalese soldiers.

Led by British actress Joanna Lumley, the campaign won Gurkha veterans who retired before 1997 with at least four years’ service the right to settle permanently in Britain. Lumley on Jan. 17 acknowledged that the government is “wrestling with enormous financial worries” but called the cuts “a tragedy.”

“In these worrying and uncertain times, any serviceman or servicewoman forced out against their wishes is a tragedy,” said the star of the British television comedy “Absolutely Fabulous.” “Any feeling that the Gurkhas are being unfairly hit will cause a great disquiet with people across Britain.”

The Gurkha brigade has been swelling since 2008, when they were granted the right to serve 22 years, compared to 15 years previously.

Dhan Gurung, who fought with the Gurkhas for 18 years, said the cuts discriminated against the brigade.

“If you compare the cuts that have been made to the whole of the army and navy, the strength of the cost cutting on the Gurkhas seems unfair,” he said. “It’s like a form of discrimination towards Gurkhas. The Gurkha people are very loyal, very brave and hard-working people.”

About 200,000 Gurkhas fought for Britain in World War I and World War II, and more than 45,000 have died in British uniform. They have a reputation for ferocity and bravery and are known for their distinctive curved Kukri knives.

Many senior British army posts are also being cut, including eight brigadiers and 60 lieutenant colonels.

Defence Minister Philip Hammond insisted the government had “no choice” but to axe the posts as part of the Strategic Defence and Security Review after the previous Labour government overspent on defense. He said the Gurkha cuts would only affect those with six years’ service or more.

Hammond insisted the British army, which still has more than 9,000 troops in Afghanistan, would be more flexible and responsive after the cuts.

“Difficult decisions had to be taken in the SDSR to deal with the vast black hole in the MoD budget,” he said. “The size of the fiscal deficit we inherited left us no choice but to reduce the size of the armed forces — while reconfiguring them to ensure they remain agile, adaptable and effective.”

“The redundancy program will not impact adversely on the current operations in Afghanistan, where our armed forces continue to fight so bravely on this country’s behalf,” he said.

After the review was carried out in 2010, Prime Minister David Cameron’s Conservative-Liberal Democrat coalition government said it would cut 17,000 jobs from the army, navy and air force over four years.

The review has also seen Britain give up its flagship aircraft carrier.

France Offers Heron for NATO Role

PARIS - France is offering the Heron TP as its contribution in kind to the NATO Alliance Ground Surveillance program, but technical and financial problems related to adapting the medium-altitude, long-endurance (MALE) UAV to French standards are holding up a deal with Dassault and Israel Aerospace Industries (IAI), industrial and political sources said.

DASSAULT IS NEGOTIATING with Israel Aerospace Industries on the contract for the Heron TP, which the French company would then deliver to French authorities. (Israel Aerospace Industries)

French Defense Minister Gerard Longuet told the French aerospace journalists' press club that the deal would be sealed by "the end of 2012."

Dassault is negotiating with IAI on the contract for the Heron TP, which the French company would then deliver to French authorities.That's later than expected by industry and parliamentary sources, who had thought the controversial contract would be signed before the presidential elections starting in April.

"There are many difficulties" on adapting the Heron TP, driving the cost above the 320 million euro ($408 million) budget, a parliamentary source said. An extra 150 million euros each for Dassault and Thales has been estimated for the modifications, the source said.

That would push the cost to 620 million euros, approaching the 700 million euro price tag of a previous Dassault offer of the Système de Drone MALE.

The Defense Ministry has asked Dassault to submit a technical-financial proposal on the Heron TP at the end of the month.

Among the key modifications are a satellite communications link and de-icing equipment, vital to plugging the UAV into the French - and NATO - network and fly in the northern European climate, the industry executive said.

Procurement officials are working hard to make progress on the UAV case, and one option might be to acquire the Heron TP with little or no modification, the executive said.

That might create problems of interoperability within NATO as Paris has offered the Heron TP as its asset contribution, instead of paying cash, toward maintaining the AGS system, the executive said.

Although 13 nations are acquiring AGS, based on the Northrop Grumman Global Hawk UAV, all 28 alliance members help maintain the system in return for access to AGS information.

"The AGS package is still being discussed at NATO," an alliance press officer said. "It is a topic to be discussed in the February meeting of defense ministers."

NATO has long sought to launch the AGS program, intended to provide commanders with a common operational picture.

France has had a troubled relationship with AGS, as Paris looked to gain a big technological role. The planned AGS system relies on five Global Hawks to provide radar and optical pictures of conditions the ground, and a network of transportable ground stations. The UAVs will be based at Sigonella airbase, Italy.

The choice of the Heron TP sparked resistance in the French Senate, which argued for acquisition of General Atomics' Reaper on grounds of cost, performance and interoperability with allied forces.

Longuet defended the choice of the Israeli UAV as "a compromise between capability and a long-term interest for industrial policy," he told the press club.

"We could have found a cheaper, more efficient, quicker solution, but at the [unacceptable] price of long-term dependence," he said.

Longuet denied that most of the contract value would go to IAI, saying that air vehicle is the smallest part of the system, with communication and observation more important.

The government argues that adapting the Heron TP to French needs will help develop competences among about 10 domestic companies in high-value areas, particularly in communications. Critics of the choice say there would be more work for French companies on the Reaper, pitched by EADS and General Atomics.

"No proposition was made by Reaper, which did not want to share, nor to adapt to French standards," Longuet said.

General Atomics did not make a formal offer because France did not send a letter of request, an industry executive said.

In 2010, the U.S. company signed a technical-assistance agreement with EADS detailing its offer, the executive said. The agreement listed modifications, including a communications link developed by French equipment firm Zodiac for the Harfang UAV flying in Afghanistan.

General Atomics also wrote in June 2011 to French Sens. Jacques Gautier and Daniel Reiner, setting out a $209 million offer for seven air vehicles, ground gear and service support.

The government, however, sees Dassault as holding a key position on a strategic roadmap intended to ensure interoperability in observation, surveillance, targeting and air power. That position stems from its work on the Rafale and Anglo-French cooperation, in the government's view.

Longuet said risk-reduction work on the Heron TP would start in 2013.

Dassault and DGA were unavailable for comment.

On a proposed new MALE UAV to be developed with Britain, Longuet urged a pan-European rather than a strictly bilateral approach.

The project "should accept the construction of Europe," he said. "We can't ignore countries with industrial capabilities. We'll probably have an Anglo-French project, which cannot avoid opening to other European partners."

On the Anglo-French cooperation treaty, Longuet said, a new date for a summit meeting would be set for before his birthday on Feb. 24.

"There are no doubts on defense," he said on relations between London and Paris.

EADS and Finmeccanica signed a deal in December to team on UAV development, reflecting wider discontent in Italy and Germany over the Anglo-French defense accord.

France would not develop the EADS Talarion Advanced UAV, Longuet said.

One way of bringing a European dimension into the planned Anglo-French MALE UAV would be to integrate it into the European combat aircraft environment, dominated by the Eurofighter Typhoon and Rafale aircraft, Longuet said.

"If we're intelligent, we should say, 'You British work on Eurofighter with Germany, Italy and Spain, and we'll work on Rafale,'" he said. "It would be good if the MALE UAV were to be compatible with one and the other."

OTHER PROGRAMS

France will buy the A330 Multi-Role Tanker Transport (MRTT) from Airbus "in 2013 for delivery four years later," Longuet said, leaving Boeing out in the cold.

Longuet dismissed previous official denials that Airbus had been chosen as "semantic elegance."

The U.S. Air Force's $35 billion pick of Boeing over Airbus for its KC-X tender effectively shut the door on a French tender.

France is expected to order five to seven A330 MRTT units in a first-batch order that could total 14.

Paris had been considering leasing part of Britain's A330 tanker fleet, but the Libyan air campaign led French authorities to decide they wanted their own aircraft.

On domestic consolidation, Thales would likely take a 10 percent to 20 percent stake in Nexter in exchange for handing over its TDA Armements mortar and munitions business to the land systems specialist, Longuet said.

Thales' holding would be significant but would not leave Nexter "dependent," he said.

Answering a question on anxiety at DCNS, where Thales is raising its stake in the naval company to 35 percent from 25 percent, Longuet said, "Thales is not the obligatory supplier of systems. DCNS can choose its systems."

DCNS makes naval combat management systems, and executives fear Thales will impose its own products, relegating the company to being a platform maker.

Nexter and DCNS had to forge European alliances to compete with companies from emerging economies such as Brazil, but first they had to consolidate their domestic base, Longuet said. Nexter had to look to German partners, as that was where the land sector was strong, he said.

Asked about the health of French defense companies, Longuet said, "Thales is a company necessarily in more peril because it is innovative on creative subjects on a world scale. It is more difficult. It has to take risks and goes through periods of uncertainty."

Regarding arms exports, the 2011 total for France would be around 6.5 billion euros, helped by an Indian contract for modernization of its Mirage 2000 fighters, Longuet said. That compared with 5.12 billion in 2010.

In October, procurement chief Laurent Collet-Billon had told lawmakers in October he expected 2011 export sales to reach 7.5 billion euros.

On export prospects for the Rafale, Longuet said a UAE decision to pick the Rafale would help sell the fighter to Kuwait and Qatar, which want to be interoperable with their neighbor's Air Force.

"They are interested" but would not be the first to commit, he said. "If they think no decision is being made [by UAE], they will look elsewhere."

Kuwait is looking at acquiring 18 to 22 jet fighters, with Qatar potentially 24, industry executives said, according to La Tribune.

The Defense Ministry appeared to harbor worries about Qatar raising its stake in Lagardère, the family-controlled company which owns 7.5 percent of EADS.

"There are fewer problems in football than in military aeronautics," Longuet said. "It's a subject."

But the decision on Qatar's shareholding in Lagardère was up to the Finance Ministry, not the Defense Ministry, he said.

A Qatari sovereign fund holds 10.07 percent of Lagardère stock, making it the largest single stockholder in the French company, and has asked for a seat on the board. Qatar bought 70 percent of the Paris Saint Germain football club for 30 million euros in May.

Julian Hale in Brussels and Tom Kington in Rome contributed to this report.