F-22 Raptor

Rappel du premier message :

Dans ce qui suit, des extrait d'un certain nombre d'article sur le web parlant de cette terreur volant, je vous laisse admirer d'abord le charme de cette bête de combat.

les raptor reprennent service,apres 4 mois de grounding

Citation :

F-22 fleet to resume flight operations


9/19/2011 - WASHINGTON (AFNS) -- The Secretary of the Air Force Michael Donley and Chief of Staff Gen. Norton Schwartz have recently approved an implementation plan developed by Air Combat Command officials that will allow the F-22 Raptor to resume flight operations after a four-month stand down.

The commander of Air Combat Command directed a stand-down of the fleet May 3 as a safety precaution, following 12 separate reported incidents where pilots experienced hypoxia-like symptoms. The incidents occurred over a three-year period beginning in April 2008. Officials remain focused on the priorities of aircrew safety and combat readiness. The return-to-fly plan implements several risk mitigation actions, to include rigorous inspections, training on life support systems, and continued data collection.

"We now have enough insight from recent studies and investigations that a return to flight is prudent and appropriate," Schwartz said. "We're managing the risks with our aircrews, and we're continuing to study the F-22's oxygen systems and collect data to improve its performance."

In a task force approach to implementation, Air Combat Command officials developed a comprehensive incremental return-to-fly plan that balances safety and the expedient qualification of pilots against the inherent risks of flying advanced combat aircraft, officials said.

The entire fleet will undergo an extensive inspection of the life support systems before returning to flight, with follow-on daily inspections, officials said. The aircraft is capable and authorized to fly above 50,000 feet. Pilots will use additional protective equipment and undergo baseline physiological tests. The return-to-fly process will begin with instructor pilots and flight leads regaining their necessary proficiency, then follow with other F-22 wingmen.

Prior to the stand down, ACC officials convened a Class E Safety Investigation Board in January 2011 to look into hypoxia-related reports. At the same time, a Hypoxia Deep-Dive Integrated Product Team began an in-depth study on safety issues involving aircraft oxygen generation systems.

In June 2011, the Secretary of the Air Force directed the Air Force Scientific Advisory Board to continue the oxygen generation study concurrent with the ongoing SIB. A releasable report will be made available later this year.

The F-22 Raptor entered service in 2005. As of May 2011, the Air Force has fielded 170 of the aircraft. As America's primary air superiority weapon system, the F-22 has flown more than 300 missions in support of Operation Noble Eagle and deployed on a rotational basis to the Pacific region and Southwest Asia. F-22 overseas deployments support the Department of State's Theater Security Program, formal arrangements with our foreign partners to establish defense cooperation, promote regional stability, and deter potential aggression.

(Courtesy of the Secretary of the Air Force Public Affairs)

af.mil

An F-22 crew chief begins the procedure of releasing the aircraft from the hangar Sept. 21, 2011. Four Raptors were launched as Holloman's premiere aircraft return to the sky. The decision by the commander of Air Combat Command to lift the stand-down ensures F-22 crews will return to combat mission readiness.

Spoiler:

M2000 a coté du raptor

Citation :

Les F-22 américains interdits de décollage
http://www.usinenouvelle.com/article/les-f-22-americains-interdits-de-decollage.N161502

Citation :

DoD awards deal to find Raptor oxygen problems


Lockheed Martin will receive more than $24M to determine what’s causing the F-22 issues
By [email=dmajumdar@airforcetimes.com?subject=Question from AirForceTimes.com reader]Dave Majumdar[/email] - Staff writer
Posted : Thursday Oct 27, 2011 10:20:37 EDT

Lockheed Martin has been awarded an F-22 Raptor sustainment contract for $24 million to find the root cause of the fifth generation air superiority fighter’s oxygen system among other things, according to a Defense Department announcement.

The company “is being awarded a $24,363,993 cost-plus-fixed-fee contract modification for the F-22 Program to provide sustaining engineering and depot partnering task associated with non-destructive inspection organic capability, hypoxia root cause analysis, titanium crack growth, site activation, slider seals, and radar cross section turntable,” reads a Defense Department contract announcement posted on defense-aerospace.com.

The release was issued Wednesday.

airforcetimes

Citation :

Sprey and Wheeler: The F-22 Controversy, Arguments for Stopping Production

...
Study after study show that pilot skill dominates all other factors in winning or
losing air battles. The F-22's maintenance costs have the Air Force to
slash in-air pilot training. In the 1970s, fighter pilots were getting
20 to 30 hours a month of air combat training. Today, F-22 pilots get
10 to 12 hours. High tech theorists claim flying can be replaced by
ground simulators. Experience teaches that simulators can be used for
cockpit procedures training but, by misrepresenting in-air reality,
they reinforce tactics that could get pilots killed in real combat.

The Air Force, Lockheed, and their congressional boosters tout the
F-22 as the silver bullet of air combat. The F-22's so-called stealth
may hurt more than it helps. In truth, against short wavelength
radars, the F-22 is hard to detect only over a very narrow band of
viewing angles. Worse, there are thousands of existing long range,
long wavelength radars that can detect the F-22 from several hundred
miles away at all angles. Believers in stealth's invisibility should
ask the pilots of the two - not one, as commonly believed - stealthy
F-117 bombers taken out of action by old Russian radar-directed
defense systems in the 1999 Kosovo air war. Moreover, a new
whistleblower scandal is presenting evidence that the F-22's stealth
skin has failed to meet its stealth requirements because it has been
badly fabricated and dishonestly tested.

The vaunted invincibility of the F-22 founders on two incurable flaws:
First, the plane's so-called "low probability of intercept" radar may
now be easily detected, thanks to the proliferation of spread spectrum
technology in cell phones and laptops. That creates an environment
where, if the F-22 pilot turns on his radar, he announces his presence
over hundreds of miles. Even better for the enemy, the radar makes an
unmistakable beacon for opposing missiles.

Second, when combat forces F-22 pilots to turn off radars, they'll
find themselves forced into a close-in, maneuvering fight. Compromised
by stealth and heavy radar electronics, the plane's agility, short
range missiles, and guns are nothing special - as one of us observed
at Nellis Air Force Base in Nevada when an F-16 "shot down" an F-22 in
exercises.

As for the plane's advertised ability to cruise supersonically the
F-22's low fuel capacity (27% of takeoff weight, only two thirds of
what's needed for combat-useful supersonic endurance in enemy
airspace) reduces this to an air show trick. Why the big fuel
shortfall? To make room for stealth technologies and radar
electronics.
....

http://groups.google.com/group/rec.aviation.military/browse_thread/thread/05516f44d354fb43?pli=1

ca c´est un CONTRAT

Citation :

Lockheed Martin Corp., Fort Worth, Texas (F33657-02-D-0009), is being awarded a not-to-exceed $7,400,000,000 indefinite-delivery/indefinite-quantity contract. This action is for the development of system upgrades to existing requirements, incorporate new requirements, add capability and enhance performance in the F-22 Weapon System. One firm was solicited and one firm submitted a proposal. The HQ Aeronautical Systems Center ASC/WWUK, Fighter Bomber Directorate, Wright Patterson Air Force Base, Ohio, is the contracting activity (F33657-02-D-0009).

defense.gov

Citation :

F-22 production line up again after grounding


Lockheed Martin’s F-22 Raptor production line is back on track after the Air Force’s fleet-wide grounding of the jet had disrupted deliveries to the service, the company said.

“We are delivering jets,” Lockheed spokeswoman Alison Orne said. “The last one delivered was 4185. 4195 will be delivered in late spring 2012.”

Tail number AF 09-4185 has technically been delivered with the signing of a DD-250 form, but the stealthy fifth-generation fighter is currently undergoing government flight tests. After the completion of the tests this week, the Air Force’s 1st Fighter Wing will fly the jet to Joint Base Langley-Eustis, Va., where it will be based.

“It is scheduled to depart for Langley on [Thursday],” Orne said.

Aircraft 4183 was the last jet to fly to its new home.

The final Raptor to be built, AF 09-4195, will also be delivered to Langley, where it will fly with the 1st Fighter Wing’s 27th Fighter Squadron, the service’s oldest fighter unit. It is expected to be delivered in the spring, according to Lockheed.

airforcetimes

son moteur

Citation :

The final F-22 Raptor fighter jet rolls out of the assembly plant during a ceremony marking the occasion at the Lockheed Martin Plant in Marietta , Georgia, December 13, 2011.



The Final F-22: 4195

production commencée apres le F16 et finie prématurement avant lui,ils doivent maudire gates jour et nuit chez LM

Spoiler:

est-ce que c'est le même moteur que le F-35 ?

on dirait une méduse

Spoiler:

28/02/12

Citation :

Top USAF general explains EXACTLY how to kill an F-22

Hopefully, you will never find yourself in air-to-air combat with a Lockheed Martin F-22, particularly if you happen to be flying any other fighter besides an F-22. The Raptor still boasts a 30:1 kill ratio in mock dogfights (the only kind of dogfight, alas, the F-22 has ever known).

Notice, however, the ":1" part of the ratio expression. That's the proof: The F-22 can be shot down.

But how?

This morning, Lieutenant General Herbert "Hawk" Carlisle, deputy chief of staff for plans, operations and requirements, explained how a Boeing F-15 can shoot down an F-22. Carlisle spoke this morning about fifth generation fighters at a breakfast event sponsored by the Air Force Association in Rosslyn, Virginia.

Here is a transcript of Carlisle's remarks:

Citation :

"They [the F-22s] always start defensive as you might imagine because anything else is kind of a waste of gas. So the F-22 always start defensive. On rare occasions the F-22 guy -- first of all, the [F-15] Eagle guy, you have to fly a perfect lag fight (flight?). You have to have AIM-9X and JHMCS [joint helmet mounted cueing system] to get an off-boresight IR [infrared] capability. And the F-22 guy has to put up his power a nanosecond too early and not use his countermeasures and you may get a fleeting, one nanosecond AIM-9X shot, and that's about it."

Make that the OTHER way to shoot down an F-22.

We already know there's another tactic developed by the F-22's simulated opponents.

Back in November, 2008, there was a minor blogosphere eruption when an Air National Guard colonel was seen on YouTube providing all sorts of fascinating details about Red Flag activities, including how F-15 pilots have learned to shoot down the F-22.

Here's what he said:

Citation :

"We've been fighting the Raptor and getting our butts kicked, and you know the only chance you have against the Raptor is when he's in the turn and he's coming around the corner -- and you have an inexperienced guy because the experienced guys know not to get there -- but the inexperienced guy has got -- and this is, no [shoot], 28-degrees-per-second turn rate at 20,000 feet. The F-15 has an instantaneous [turn rate] of 21 [degrees] and a sustained [turn rate] of about 15-20 degrees. The Raptor can sustain 28 degrees. Some of these young guys, that's not enough for them. They want more than that! So they come around the corner, and, here you are in your Eagle, just hoping that he gets scared and ... [the F-22 pilot] pulls to the point where he's going post-stall manoeuvring. Once he goes post-stall, the airplane stops moving around the centre of lift on the wing and it goes around the centre of gravity up by the nose because it goes on just thrust, and the ass-end drops down, and the airplane will rotate like this. Well, in the Eagle, or in the [F-16] Viper, when you see that, you immediately go vertical because you know he's not going to be able to go up with you, and you have one fleeting opportunity against the Raptor and that's it."

Yes, that's it. Consider this your F-22 dogfight survival guide, although you will probably still be dead.

http://www.flightglobal.com/blogs/the-dewline/2012/02/top-usaf-general-explains-exac.html

interessant,voila ce qui montre l´utilité du couple mortel JHMCS+AIM-9X
un coup de post-stall,comme aiment le faire ce genre d´avions a TVC(comme SU30+) et hop la,dans le mille

>

Yakuza a écrit:

on dirait une méduse

Spoiler:

pour moi on dirait un poulpe

Spoiler:

Citation :

Lockheed begins test flights of final Raptor


The last F-22 Raptor to be built for the US Air Force took-off on its inaugural test flight earlier today with a company pilot at the helm, a Lockheed Martin executive says.



"I was just watching the take-off of aircraft 4195, so it's now made its first flight on its way to delivery," says Jeff Babione, Lockheed's F-22 programme manager. "We just had everyone outside the building watching the take-off of the final Raptor."

Lockheed test pilot Bret Luedke-- a veteran aviator who has flown almost every Raptor the company has ever built--is flying the aircraft.

Babione says that company pilots usually fly two sorties to verify that the aircraft is functioning correctly. Super-cruise testing is usually conducted over Tennessee and Alabama, he says. The aircraft is capable of cruising at around Mach 1.8 without afterburners and has a top speed of around Mach 2.2.

"It's a real rigorous shakeout to make sure the aircraft is performing as designed," Babione says.

Following the company test flights, government Defense Contract Management Agency (DCMA) pilots repeat those two sorties as part of the military's acceptance procedures. The lead DCMA test pilot is Robert "Trigger" Wallace.

Only after the aircraft completes those four test sorties will it receive its stealth coatings, Babione says. The aircraft also has to complete a mandatory government inspection.

Lockheed will formally deliver aircraft 4195 to the USAF on 2 May, but the company will probably finish the work well ahead of time, Babione says.

The aircraft will be picked up from the factory by Lt Col Paul Moga and will then become the new "flagship" for the 525th Fighter Squadron at Joint Base Elmendorf-Richardson in Alaska.

Lockheed only has five F-22s left to deliver to the USAF. The air force recently took delivery of tail number 4190, which became the new flagship for the 90th Fighter Squadron-which is also part of the 3rd Wing at Elmendorf.

The aircraft passed its mandatory government inspection with flying colours, but it also has to be inspected once it arrives at its home station. The 4190 landed at Elmendorf "code one"-or with no problems to report-but it has yet to complete inspections. Babione says that he'll know in the next few days if the aircraft will get a "Platinum Star" rating for having "zero defects."

The next aircraft, tail number 4191--which is the last jet built under a 60-aircraft, multi-year purchase--is set to be formally handed over to the USAF on 15 March, Babione says.

While the air force will take formally take ownership of the aircraft by signing a DD-250 form, the service may not fly the jet to its new home at Joint Base Langley-Eustis in Virginia until later, he says.

flightglobal

f-16.net

...

Citation :

First Flight For Last Raptor

MARIETTA, Ga., March 15, 2012 — The final Lockheed Martin F-22 Raptor took to the skies for its first test flight here yesterday with company test pilot, Bret Luedke at the controls. Raptor 4195 has a May delivery date and will join other F-22s in the U.S. Air Force’s 3rd Wing at Joint Base Elmendorf-Richardson, Alaska.

http://www.lockheedmartin.com/us/news/press-releases/2012/march/120315ae_last-raptor-first-flight.html