JSF F-35 Lightning II

Rappel du premier message :

Bonjour à tous,

Le F-35 est l'avenir de beaucoup de forces aériennes, il remplacera les F-16, A-10, Harrier et autres. Je propose que soient postées ici, si vous êtres d'accord, toutes les infos au sujet du F-35. Merci de m'avoir lu.

Article (en anglais) fort intéressant sur l'avion qui comprend un pdf avec les différents armements que pourra emporter le F-35, tant en soutes, que sous les ailes. Furtif, moins furtif...

http://www.codeonemagazine.com/archives/2007/articles/apr_07/lightningstrike/index.html

Dans cet autre article, une image montre qu'il serait aussi possible de rajouter de l'armement en bout d'aile, info, intox?

http://www.codeonemagazine.com/archives/2002/articles/arp_02/jsf/index.html

Rafi

rafi a écrit:

De quels membres qui se sont retirés du programme F-35 parles-tu, Gemini?

Si les évaluateurs israéliens de la machine trouvent que le F-35 est un excellent avion, que dire de plus, en ce qui concerne l'avion lui même?

.

J'ma tromper,pas retiré du programme mais qui n'achéte plus.

une chose est sur le F-35I n'aura que trés peux de similitude avec un F-35A de base

-cablage pour munitions israelienne en particulier pour l'intégration du spice, python 5 et 6(en cours de developpement chez rafael)

-liaison de donnée,comsat,et radio israelienne qui passerons directement par les sat de communication israeliens

-systéme de guerre electronique developper par elta (pas encore sur le marché)

-integration d'ondes et de protocoles locaux permettant la communication et l'integration de l'avion au systéme zayad (digitalisation compléte de tsahal)

-CFT furtif (en fabrication chez IAI)

le F-35I concurrenciera t-il le F35 basique?on tenderai a le croire,vu les bijoux qui vont l´orner

Quel radar pour le f-35I ? Pour les f-35 export?

Ayant deja discuter des problème du f-35 sur ce forum ce qui y est ressorti de la discution est un manque de furtivité due à l'énorme puissance du monoréacteur. Qu'est ce que compte faire lIAF pour ce pb ?

Merci

Citation :

DATE:23/09/10
SOURCE:Flight International
Lockheed, US government strike deal on next F-35 order
By Stephen Trimble

The US government has reached an agreement with Lockheed Martin on the structure of a fixed-price contract worth more than $5 billion for up to 32 more F-35s.

The agreement is necessary before the Department of Defense signs a contract for the fourth lot of low-rate initial production, which orders F-35s projected for delivery after 2012.

The agreement ends a negotiating process that was extended by about four months to satisfy demands by the DoD for a fixed-price contract.

Lockheed previously delivered the Joint Strike Fighter under a "cost-plus" structure, allowing the contractor to be reimbursed for cost overruns.

Lockheed's $5 billion cost estimate for the new contract means the average cost for this batch of F-35s, excluding engines, is more than $156 million.



However, that number also includes the cost of extra production tooling to make the aircraft and spares.

The specific flyaway cost of each jet will be lower than the overall average, but details will not be known until a contract is signed.

The agreement, which includes one aircraft for the UK and an option for one for the Netherlands, means Lockheed now has commitments from the Joint Programme Office (JPO) to buy a total of 63 production aircraft.

The programme is still ramping up production as it transitions from development to manufacturing, but the process is complex. Lockheed has flown only about 10% of the roughly 5,000 flight tests split among the three F-35 variants.

Meanwhile, new documents released by the JPO reveal that more than half of planned orders in 2012 will be deferred to later years.

Last February, the DoD restructured the F-35 programme to reflect more realistic cost and schedule targets, deferring orders for 122 aircraft beyond fiscal year 2015.

As part of the restructuring, 118 orders between the USA and foreign buyers previously projected by the JPO next year have been reduced to 53.

The deferred orders mean Lockheed's production system will increase by only 10 compared to 43 aircraft orders currently projected in FY2011.

At the slower rate, Lockheed will be under pressure to maintain the planned rate of cost reductions with a slower learning curve

ready a écrit:

Quel radar pour le f-35I ? Pour les f-35 export?

Ayant deja discuter des problème du f-35 sur ce forum ce qui y est ressorti de la discution est un manque de furtivité due à l'énorme puissance du monoréacteur. Qu'est ce que compte faire lIAF pour ce pb ?

Merci

Normalement tous les F-35 serons equipé du AN/APG81, F-35I inclus,je ne sais pas si l'IAF a demander a installer le EL/M2052,mais de toute maniére les us auraiient refuser,il y'a deux ans l'armée de l'air voulaient installer sur tous ses F-15 et ses F-16C/D/I le EL/M2052 les us ont refuser sous prétexte que cela ferai trop pencher la balance en faveur d'israel (ce qui en méme temps est vrai).

Pour le reacteur j'en sais absolument rien,le camouflage thermique a ce niveau la est me semble t'il maitriser par aucun grand pays technologique.

il y'a une autre possibilité pour l'armée israelienne c'est un enduit developper par la société nanoflight qui permet de rendre furtif des avions mais aussi des missiles,pour l'instant les resultats sont prometteurs et le projet est en bonne voie
lisez plutot

Citation :

Israeli firm develops nanotech stealth paint

TEL AVIV — Israel's Nanoflight has been developing a paint that could significantly reduce the radar signature of missiles, aircraft and unmanned aerial vehicles.
The paint, which has not been named, was developed in a nanotechnology laboratory and tested in mid-July 2010.
"This is a breakthrough with the potential to change the rules of the game in the battlefield," Nanoflight executive Eli Shaldag, a former senior Air Force officer, said.

Shaldag, who worked on Israel's Arrow missile defense project, said Nanoflight has completed the main development stage and underwent several trials. He said the paint was based on nano research that led to the composition of elements that significantly reduce thermal and radar signatures.

"We conducted a number of tests and discovered that the particles in their nanotechnology composition do significantly neutralize the ability to detect objects that have been painted with the material," Shaldag said.

Executives said the special paint, which absorbs electromagnetic waves, could also protect ground platforms from radar detection. In the latest test, first reported by Israel's Ynet news agency, the paint was applied to dummy missiles, which when launched appeared to evade most radar identification.

Nanoflight has been marketing the paint as an alternative to the procurement of expensive stealth aircraft. Executives said although radar could still detect an object on the screen, identification would be extremely difficult.

"We are entering the second stage, after which we will already be able to produce the material in larger quantities," Shaldag said.

Nanoflight, which also envisions civilian applications, has also been working on paint to block infrared detection of ground forces. Executives said this would foil enemy units equipped with night-vision goggles and similar systems.

"We are only at the beginning and discovering new worlds every day," Shaldag said.

Merci pour tes précisions Glaive

Si ce genre de produit se révéle efficace, il faut absolument se le procurer !

Que les américains pensent que l'utilisation du radar AESA EL/M-2052 induirait de faire trop pencher la balance en faveur d'Israël est une formidable publicité pour ce matériel.

oui c'est sur !!

Moi je parlais de la peinture qui rendrait l'avion et les missiles Furtif

rafi a écrit:

Que les américains pensent que l'utilisation du radar AESA EL/M-2052 induirait de faire trop pencher la balance en faveur d'Israël est une formidable publicité pour ce matériel.

pas forcément c'est juste un radar d'une nouvelle génération, si comme je te disais l'introduction du Irbis-E en arabie changerait la balance en sa faveur

Citation :

airforce-technology
Terma has received a contract from General Dynamics Armament and Technical Products for the delivery of 16 low-rate initial production (LRIP) gun pods for the F-35 joint strike fighter (JSF).
Under the $15.9m contract, Terma will deliver the gun pods for the short take-off / vertical landing (STOVL) and carrier version (CV) variants of the F-35 Lightning II aircraft.
Before the delivery, Terma carried out qualification tests including firing and fit-check tests of the gun pods to reduce its weight and lower cost.
During the entire F-35 production phase, Terma will deliver nearly 400 gun pods for the F-35 JSF.
A supersonic, multirole, fifth-generation stealth fighter, the F-35 will replace existing aircraft, including AV-8B Harriers, A-10s, F-16s and F/A-18 Hornets.

airforce-technology

Raptor a écrit:

Su-30MK vs F-35 CTOL/CV vs F/A-18 C/D/E/F:

Voilà donc Sukhoi 30 Dégomme tt le monde !!

Sans oublier que le F35 à une faible capacité d'emport lorsqu'il veut rester en mode furtif, pour conserver sa faible furtivité.

à quelle distance ton Flanker aura le F35 sur son écran radar ?

Je me mefie de ce genre de comparaison,dans la réalité se sont trés trés souvent les avions russes qui sont partis au tapis .

Glaive le mec cherche à te dire que même si l'IAF opte pour le F35I, c'est l'Algerian air force qui est maintenant la One en moyens-orient

GlaivedeSion a écrit:

Je me mefie de ce genre de comparaison,dans la réalité se sont trés trés souvent les avions russes qui sont partis au tapis .

La comparaison est basée sur le point de vue russe des choses. Le meme gars a dit ailleur qu'il n'y avait pas a comparer un avion de generation differente (chose sur laquelle je ne suis pas d'accord),et donner une chance à un Su-30 face a un F-35 releve de la folie (et j'espere que je n'exagere pas la dessus).

FAMAS a écrit:

Glaive le mec cherche à te dire que même si l'IAF opte pour le F35I, c'est l'Algerian air force qui est maintenant la One en moyens-orient

Oh mon dieu,non....encore une fausse nouvelle censer ouvrir un debat stérile

Boomer a écrit:

La comparaison est basée sur le point de vue russe des choses.

Il est basé plutôt sur le point de vue australien! Je m'explique: La sources de cette image est un site australien de propagande anti F35 et pro F22, c'est un site de lobbying qui essaie d'influencer l'opinion publique australienne et le gouvernement australien pour revendiquer le droit à l'accès au F22, vue que l'autralie est un allié de premier rang des USA et l'occident dans la région de l'océanie et l'asie du Sud-Est.
Ce site essaie par tout les moyen de démontrer que le F-18 E/F et F35 sont incapables de faire face aux Su30 de la malaisie, indonésie et vietname, et que l'australie est dans l'obligation d'acquérire des F22!

En réalité, l'australie n'a pas besoin ni de F22, ni de F35, ce pays lest incontestablement le plus fort dans sa région, il y est au sommet de la chaine alimentaire...

Si le Su30 est aussi performant comme essaie ce site de démontrer, pourquoi il ne préconise pas l'achat de Su30 tout simplement au lieu de se casser la tête à vouloir acheter un avion invendable qui est le F22?! Les auteurs de ce site prennent les citoyens australiens pour des cons, l'australie a finalisé son achat de F-18 E/F malgré tout, et achetera des F35, donc les australiens n'ont pas cru à leur propagande. Mais nos voisins y croient Toute une génération de jeunes petits adolescents, frustrés comme tout algérien qui se respecte, continuera à y croire.

Citation :

F-35s Grounded for Software, Hinge Fixes


Flight testing of all F-35 Joint Strike Fighter variants has been temporarily suspended until software that controls functioning of the engine's three fuel boost pumps is modified, the Pentagon said Oct. 1. The software problem that grounded all three jet variants was discovered during laboratory testing, a Pentagon spokeswoman said. (Lockheed Martin)




In addition, short takeoff/vertical landing-mode flight testing operations have been prohibited for the F-35B variant after post-flight inspections revealed an issue with the auxiliary inlet door hinge on test aircraft BF-1, said Lockheed Martin spokesman John Kent.Related Topics

The auxiliary inlet doors, located immediately aft of the lift fan, open to feed additional air to the engine during short takeoffs, vertical landings, hovers and slow-speed flight, Kent said.
The software problem that grounded all three jet variants and led to incorrect sequencing was discovered during laboratory testing, Pentagon spokeswoman Cheryl Irwin said. Left uncorrected, she said, "This could have possibly triggered a shutdown on the three boost pumps, which could potentially cause an engine stall."
Irwin said that such a simultaneous shutdown would be highly unlikely but that "prudence dictated a suspension of operations, temporarily, until the fuel boost pump signal timing was corrected."
Irwin said that update of the software that controls the functioning of the three boost pumps has been developed and that Lockheed engineers plan to complete functional and safety tests prior to installation in the test aircraft. Kent said the update, developed in partnership with fuel system software developer BAE Systems, will be delivered this weekend.
Flight testing will resume Oct. 5, Irwin said.
Kent said F-35B STOVL-mode flights will resume after the root cause has been identified and corrected.
The issues were first reported by aviationweek.com.
The Joint Strike Fighter is a joint, multi-national, single-seat, single-engine family of next-generation strike aircraft being developed for the Navy, Air Force and Marine Corps by Lockheed Martin in three variants: short takeoff and landing, conventional takeoff and landing, and aircraft carrier-capable

defensenews

Lockheed Martin suspend les essais en vol du F-35

Citation :

WASHINGTON (Reuters) - Les vols d'essai des trois variantes du chasseur F-35 ont été suspendus, dans l'attente d'une modification du logiciel gérant la distribution de carburant, a annoncé vendredi le constructeur, Lockheed Martin.

Joint par courriel, un porte-parole du groupe, John Kent, a indiqué que l'impact de cette suspension sur le calendrier d'essai du F-35 était encore inconnu.

Le "Joint Strike Fighter" représente le principal programme d'achat du Pentagone en valeur. L'armée américaine prévoit d'en acheter 2.457 exemplaires sur vingt ans pour un montant estimé à 382 milliards de dollars.

Lockheed a indiqué avoir constaté lors d'un essai au sol une anomalie informatique qui pourrait provoquer la fermeture en vol d'une pompe de carburant.

Le F-35 dispose pour alimenter son réacteur de trois pompes, dont le logiciel de gestion a été conçu par le Britannique BAE Systems.

"Même si cette anomalie ne s'est jamais produite en vol, nous avons suspendu l'ensemble des vols par précaution", a indiqué Kent.

Lockheed et BAE Systems "ont identifié une solution et ont commencé les tests du nouveau logiciel dans nos laboratoires", a ajouté le porte-parole.

Huit pays en plus des Etats-Unis sont associés au développement du JSF: le Royaume-Uni, l'Italie, les Pays-Bas, la Turquie, le Canada, l'Australie, le Danemark et la Norvège. Les commandes cumulées de ces pays sont estimées à 730 exemplaires.

Citation :

Flight testing of Lockheed Martin's F-35 fighter jet has been suspended after engine problems

Jim Wolf, WASHINGTON - 04.10.2010

Flight testing of Lockheed Martin's F-35 fighter jet, the costliest U.S. arms purchase, has been suspended after discovery of a fuel pump sequencing problem that could have caused engine stall, the Defense Department said on Friday.

All three F-35 models have been grounded as a precaution pending "minor" modification of software that controls signal timing, Cheryl Irwin, a Pentagon spokeswoman, said in a statement emailed after the close of markets.

The radar-evading F-35, also known as the Joint Strike Fighter, is the Pentagon's costliest acquisition at a projected total of up to $382 billion for 2,457 planes over the next two decades.

A software fix has been developed and is due to be installed in test aircraft starting Oct. 5, Irwin said. The faulty sequencing was discovered during laboratory testing.

"It could possibly trigger a shutdown of all three boost pumps, potentially further causing engine stall," the spokeswoman said.

But she said a simultaneous shutdown of the United Technologies Corp's Pratt & Whitney F135 engine's three fuel "boost pumps" was unlikely.

The grounding was the latest hitch in a high-profile multinational program revamped by Defense Secretary Robert Gates this year to deal with cost overruns and schedule slips.

"The aviation development process discovers technical challenges that force programs to pause, reassess, resolve, and continue," Vice Admiral David Venlet, executive officer for the Pentagon program, said in the statement.

The grounding's impact on the flight test schedule is unknown, John Kent, a Lockheed Martin spokesman, said in a separate emailed statement.

Lockheed, the Pentagon's No. 1 supplier by sales, said it had never experienced the fuel pump sequencing anomaly in any flight condition.

Lockheed and BAE Systems Plc, the fuel system software developer, have identified a fix and begun testing that software in their labs, Kent said.

BAE and Northrop Grumman Corp are Lockheed's chief F-35 subcontractors. An alternate, interchangeable engine is being developed by a joint venture of General Electric Co and Britain's Rolls-Royce Group Plc.

The United States is co-developing the F-35 with eight foreign partners -- Britain, Italy, the Netherlands, Turkey, Canada, Australia, Denmark and Norway. Together, the partners are projected to buy about 730 planes.

Source Reuters- Balkans.com

Citation :

DoD Decertifies Lockheed's F-35 Progress Tracker
The Pentagon suspended its certification of Lockheed's system for tracking the progress on the F-35 Joint Strike Fighter and the F-16 Fighting Falcon programs today, underscoring DoD's tough talk about running weapon buys as efficiently as possible.

The department is withdrawing its certification of the company's Earned Value Management System (EVMS) at its Fort Worth, Texas, facility to ensure Lockheed "devotes the needed attention" to revamp its system, which measures progress on the programs, according to a Oct. 5 Pentagon statement.
An "internal discussion on what path to now take is ongoing within the department with regard to Lockheed's EVMS," Pentagon spokeswoman Cheryl Irwin said.
Lockheed officials acknowledged that the Pentagon's full review of the restructured F-35 program could change its schedule and cause a corresponding slip in the recertification of its EVMS, according to an Oct. 4 company statement.
The "technical baseline review of the F-35 program … may affect the content and timing of the new F-35 baseline and thus the EVMS re-audit," reads the company statement. The government will determine the schedule of the re-audit."
The company's EVMS combines measurements of scope, schedule and cost in a single system to give an "early warning of performance problems," the Lockheed statement reads.
Lockheed recently acknowledged that flight testing has been delayed on the short-takeoff and vertical landing F-35B variant after a series of problems were discovered as planes shifted from forward to vertical flight.
On Oct. 1, the company announced that flight tests on all models of the jet were being suspended until a fix can be made for software controlling the plane's fuel boost pumps.
Late last month, the Pentagon gave Lockheed a roughly $5 billion fixed-price contract for 32 early production jets. That deal was touted by Lockheed as proof that it will deliver the jets on time and below cost estimates.

defensenews

y a t-il une date de prévue pour la fabrication en chaine de cet avion?

Le F-35s a reçu l'autorisation de reprondre les essais

Citation :

Test F-35s Return to the Air
Lockheed's F-35 Lightning II test planes are flying again after being grounded late last week due to software glitches involving the jets' fuel pumps, company officials have confirmed.

"Over the weekend, we loaded the software solution onto the flight test aircraft," company spokesman John Kent said late on Oct. 5. "This morning, we received clearance to fly the two aircraft at [Edwards Air Force Base, Calif.] and just a few minutes ago, AF-1 took off."
While the conventional takeoff F-35As are cleared to fly, the short-takeoff-and-vertical-landing (STOVL) F-35Bs have yet to receive clearance. Additional problems with the B model's auxiliary inlet door are keeping those jets on the ground, according to the company.
"We expect the STOVL test aircraft to receive clearance very soon and to resume [conventional-takeoff-and-landing or CTOL] operations later this week," Kent said. "The F-35B jets are still restricted to CTOL-mode only operations, as we implement the corrective actions that address the auxiliary inlet door issue."
Lockheed has acknowledged in recent months that flight testing had been delayed on the F-35B after a series of problems were discovered involving things like inlet door hinges, as the plane shifted from forward to vertical flight.

defensenews

Citation :

Northrop Grumman Begins Flight Testing New B-2 EHF Satcom Hardware



October 13, 2010 by Marcel van Leeuwen · Leave a Comment


EDWARDS AFB, Calif., Oct. 13, 2010 (GLOBE NEWSWIRE) — Northrop Grumman Corporation (NYSE:NOC) has begun flight testing the new computing hardware and communications infrastructure that will eventually allow the B-2 stealth bomber to send and receive battlefield information by satellite more than 100 times faster than today.

Since Sept. 1, the company has conducted a series of test flights using a B-2 test aircraft stationed at Edwards Air Force Base, Calif. The flight test program is part of Increment 1 of the U.S. Air Force’s B-2 extremely high frequency (EHF) satellite communications program.

Northrop Grumman is the Air Force’s prime contractor for the B-2 Spirit, the flagship of the nation’s long range strike arsenal, and one of the world’s most survivable aircraft systems. The B-2 is the only combat-proven stealth platform in the current U.S. inventory.

“The flight test program has demonstrated that the EHF Increment 1 computer upgrade system has reached a maturity level that allows us to conduct test sorties beyond the Edwards AFB local area with confidence,” said Ron Naylor, Northrop Grumman’s director of the EHF Increment 1 development program. ”It also adds momentum to our efforts to give the B-2 the high speed data handling infrastructure it will need for critical communications and weapons delivery upgrades in the future.”

Naylor attributes the success of the test flight program, in part, to the Northrop Grumman ground crews that helped perform the pre-flight checkout and maintenance on the B-2 test aircraft.

“Collaborating with the Air Force will allow us to increase the tempo and frequency of B-2 sorties from Edwards,” explains Naylor, “which will also help the company speed the rate at which new capabilities for the B-2 can be made available for the warfighter.”

The EHF Increment 1 system that flew includes:

• A new integrated processing unit developed by Lockheed Martin Systems Integration, Owego, NY., that will replace up to a dozen current stand-alone avionics computers on the B-2;
  
• A new disk drive unit developed by Honeywell Defense and Space Electronic Systems, Plymouth, Minn., that will enable transfer of EHF data onto and off of the B-2; and
  
• A network of fiber optic cable that will support the high speed data transfers within the aircraft.
  

The three-increment EHF Satcom program is part of an ongoing effort by the Air Force and Northrop Grumman to modernize the B-2 to keep it fully mission capable against evolving enemy threats.

Increment 2 involves installation of a new communications terminal and new antennas that will allow the B-2 to transmit and receive information securely via satellite. Increment 3 will integrate the B-2 into the U.S. Department of Defense’s Global Information Grid, a worldwide network of information systems, processes and personnel involved in collecting, storing, managing and disseminating information on demand to warfighters, policy makers and military support personnel.

The B-2 is the only U.S. aircraft that combines stealth, long range, large payload and precision weapons in a single platform. In concert with the Air Force’s air superiority fleet, which provides airspace control, and the Air Force’s tanker fleet, which enables global mobility, the B-2 helps ensure an effective U.S. response to threats anywhere in the world. It can fly more than 6,000 nautical miles unrefueled and more than 10,000 nautical miles with just one aerial refueling, giving it the ability to reach any point on the globe within hours.

Source: Northrop Grumman

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