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Author Topic: F-35 Lightning II  (Read 305147 times)
 
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dzumba
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« Reply #675 on: November 19, 2019, 08:50:08 pm »

Па то је идеално за војноиндустријски комплекс...ради се, паре стижу, профити расту а оперативне способности авијације која има Ф-35 ионако је споредно питање. Све што треба могли су и са постојећим авионима.
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« Reply #676 on: November 20, 2019, 09:01:18 am »

Sto je dokazano i u praksi jer projekat F-35 kasni vec 8 godina.
Pomislio bi neko da ce da se ubrzaju jer kinezi i rusi zavrsavaju svoje avione 5. generacije.

Ovo je definitnvo najveci promasaj americkog vojnoindustriskog kompleksa, bez obzira kako na kraju ispadne F-35.
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« Reply #677 on: November 25, 2019, 10:19:07 am »



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« Reply #678 on: December 11, 2019, 02:06:22 pm »



Izvještaj Norveškog državnog revizora o F-35 proglašen strogom tajnom


Norveški državni revizor iznio je kritike vladi u izvještaju parlamentu o novim borbenim avionima F-35 koji treba da zamjene staru norvešku flotu. Izveštaj revizora proglašen je državnom tajnom.

Ministar odbrane Frank Bake Јensen objasnio je da su se šef odbrane Hakon Brun Hansen i kancelarija generalnog revizora složili da informacije u izvještaju ostanu u tajnosti.

Norveški ministar odbrane ističe da su informacije od "velikog značaja" za operacije prikupljanja stranih obavještajnih podataka i da je zato izvještaj generalnog revizora proglašen tajnom.

Revizor navodi da je tajnost izvještaja tražilo norveško Ministarstvo odbrane.

Generalni revizor Per Kristijan Fos priznao je da se radi o odstupanju od uobičajene parlamentarne prakse, ali je naglasio da je procjena Ministarstva odbrane da operativni kapaciteti borbenih aviona ne smiju da budu javno dostupni.

Norveški ministar odbrane i ministar spoljnih poslova podnijeće tajnu izjavu o izvještaju, nakon čega će odbor podnijeti povjerljivu preporuku parlamentu prije Božića. Čak će i rasprava o kritikama biti povjerljiva, kao i zapisnici sastanka.

Generalna kancelarija revizora dobila je zadatak da proceni infrastrukturu vazduhoplovnih snaga i njene operativne kapacitete tokom prelaska sa starih norveških aviona F-16 na nove F-35. To uključuje procedure održavanja, funkcije logistike i snabdjevanja, baze i njihove sisteme odbrane, komande i kontrole, kao i političko upravljanje Ministarstvom odbrane.

U okviru velikih investicija u odbranu Osla, avioni F-35 smatrani su novom okosnicom norveških Oružanih snaga.

Norveška je nabavila 52 borbena aviona F-35 kao zamjenu za svoju staru flotu F-16, koja će se postepeno ukidati od 2019. Dok se ukupni troškovi procjenjuju na 85,1 milijardu norveških kruna (više od 9,2 milijarde dolara), objavio je ranije list "Bergens Tidende", ove godine bi troškovi mogli dostići čak 97 milijardi norveških kruna (10,4 milijarde dolara). Novi borbeni avioni neće postati potpuno operativni do 2025. godine.

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« Reply #679 on: December 11, 2019, 08:04:33 pm »



Boje se reći narodu da će platiti enormni novac za govno!
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Plavi
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Svaka ptica svome jatu leti.


« Reply #680 on: December 11, 2019, 10:29:43 pm »

Usporedba f35 i f15ex.


* f35f15ex.jpg (254.83 KB, 746x1179 - viewed 93 times.)
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« Reply #681 on: December 11, 2019, 11:43:34 pm »

Nije mi jasno zasto uporedjuju F-35 i F-15 kad nisu ista klasa aviona.

Sa F-15 treba uporedjivati F-22.
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« Reply #682 on: December 12, 2019, 07:02:28 am »

Pa vole to "novinari" i "stručnjaci", da porede babe i žabe. Roll Eyes
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« Reply #683 on: January 31, 2020, 03:09:27 pm »

Testovi F 35 američkog ministarstva odbrane pokazali: Najskuplji američki lovac je nepouzdan, neprecizan i otvoren za hakere
NovostiOnline   31. januar 2020.

Ponos američkog ratnog vazduhoplovstva “nevidljivi” F 35 i dalje nije u potpunosti operativan iako je do sada napravljeno, i prodato, 490 aviona!

Ovu zabrinjavajuću informaciju su potvrdila zvanična testiranja koja je sprovelo Ministarstvo odbrane SAD (DoD). U izveštaju je navedeno 13 mana “Kategorije 1” koje moraju biti odmah uklonjene. Odnose se na neprecizan top, sajber bezbednost i slabu pouzdanost!

Prema rezultatima testiranja sve tri varijante imaju problem sa avionikom. Ti problemi su izraženiji kod varijanti F35B i F35C (mornarica i marinci) dok je situacija nešto bolja u vazduhoplovstvu (tip F35A). Osim toga postoji i problem preciznosti topa od 25 mm, na zemaljskim ciljevima, koji je ugrađen na ovaj avion. U izveđtaju je on ocenjen kao “neprihvatljiv”. Od tri postojeće varijante, vazduhoplovnu, mornaričku i onu pravljenu za marince najgore rezultate ima vazduhoplovna! Jedan od mogućih krivaca za ovakav rezultat je i činjenica da je na ovoj verziji top uvučen, dok je kod marinaca i mornarice on izbačen spolja.

Problem sa topom kod F35 B i C je i što posle opaljivanja dolazi do pucanja nosača, dok su u vazduhoplovnoj (F35A) zbog toga uveli restriktivno korišćenje ovog tipa oružje. Ukupno gledajući nijedna varijanta nije u stanju da izvede misiju do kraja (ocena uspešnosti je oko 80 dosto). Ipak, na ovakav negativan rezultat testiranja uticao je i izveštaj koji se odnosi na softver. Uotkriveno je 873 problema u ALIS (Autonomni logistički informacioni sistem) koji bi trebalo da se bavi “inteligentnim” održavanjem (između ostalog i upozoravanje na kvarove i “zdravstveno stanje”) aviona i nalazi se u sva tri tipa letelice.

Problem je toliko prisutan da se u DoD pojavila ideja da se kompletan sistem zameni drugim!

Izvor: www.novosti.rs
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« Reply #684 on: February 29, 2020, 06:26:52 pm »

Ilon Mask je na Air Warfare simpozijumu na Floridi izjavio da F-35 nema nikakvih šansi u borbi protiv lovačkog drona na daljinsko upravljanje.

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F-35 has no chance against a drone fighter plane
By Author IANS    Published: 29th Feb 2020

"The foundation of war is economics. If you have half the resources of the counter-party then you better be real innovative otherwise we're going to lose."

San Francisco: SpaceX CEO Elon Musk is confident that the traditional warfare era is long over and the future belongs to drone fighter planes that will dominate the sky and F-35 fighter jets will have nowhere to go. Addressing the gathering at Air Warfare Symposium organised by the US Air Force in Florida on Friday, Musk said the age of fighter jets dominating the sky is over.

“For the air domain… things are definitely going to go into, kind of… locally autonomous drone warfare… is where the future will be… It’s not I want the future to be this, this is what the future will be, autonomous drone warfare…,” The Drive reported Musk as saying.

“Drones locally will be autonomous, but I think we still want to retain the authority to damage or destroy anything that isn’t an autonomous drone. Keep the authority back there with a person in the loom. The fighter jet era has passed. It’s drones,” Musk added. Later, in a tweet, the SpaceX founder said: “The competitor should be a drone fighter plane that’s remote controlled by a human, but with its maneuvers augmented by autonomy. The F-35 would have no chance against it”. He stressed that F-35 stealth jet “would have no chance” against a drone remotely piloted by a human.

The US Air Force successfully tested an advanced, jet-powered drone called the XQ58-A Valkyrie recently that could accompany human-piloted fighter jets on missions. The autonomous unmanned vehicle, can play a key role in electronic warfare, strike and surveillance on the battlefield. According to New Atlas, the Valkyrie can carry a small payload of smart bombs, and has a range of just under 2,500 miles. The F-16 Fighting Falcon tops out at just over 2,600 miles while the F-22 Raptor has a range of over 1,800 miles. Musk also discussed about making a Starfleet real at the symposium.

“How do we make Starfleet real?” he asked, stressing that reusable launch vehicles are “absolutely fundamental” to achieving whatever space ambitions the military might have, including staying ahead of China.”I think we can go a long way to make Starfleet real and these utopian futures real”.

“The foundation of war is economics. If you have half the resources of the counter-party then you better be real innovative otherwise we’re going to lose… The US will be, militarily, second,” Musk said.


Izvor: www.telanganatoday.com
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« Reply #685 on: March 07, 2020, 02:22:36 pm »



Lokid Martin isporučio petstoti F-35:
Avion i dalje ima veliki broj nedostataka



Kompanija Lokid Martin saopštila je 3. marta da je izvršena isporuka 500. borbenog aviona F-35 Lightning II Joint Strike Fighter (JSF).

Devet godina je nakon što je u pogonima fabrike u Fort Vortu u Teksasu maja 2011. započela isporuka serijskih primeraka.

Osim iz SAD avioni su isporučivani i iz pogona u Italiji i Japanu u kojima se vrši finalno sklapanje.

Petstoti avion koji predstavlja primerak verzije sa konvencionalnim poletanjem i sletanjem F-35A serijskog broja AF-234, evidencijskog broja 18-5343, isporučen je RV SAD (USAF) i pripao je 134. lovačkoj eskadrili, 158. lovačkog puka Nacionalne garde Vermonta u bazi Berlington, piše portal Tangosiks.

Od 500 do sada isporučenih aviona, 354 je u verziji F-35A, 108 STOVL (Short Take-off and Vertical Landing) F-35B i 38 palubnih F-35C.

Do sada su USAF, Mornarica (USN) i Američki marinski korpus (USMC) dobili 353 aviona, partneri u programu Joint Strike Fighter 92 aviona, a kroz program Foreign Military Sales (FMS) je isporučeno 55 F-35.

Lokid Martin je podsetio i da se isporuka 500. F-35 poklopila sa dostizanjem 250.000 sati naleta aktivne flote ovih aviona u svetu koja uključuje i avione za testiranje i obuku.

U prošloj godini dostignut je rekord po broju proizvedenih aviona, iz fabrika su izašla 134 aviona (plan je bio 131), od toga su SAD dobile 81, partneri u JSF-u 30 aviona i 23 primerka su dobile države koje su avione nabavile prema programu FMS.

Poređenja radi, u 2018. godini je proizvedeno samo 91 avion a u ovoj godini je planirana proizvodnja 141 primerka sa ciljem da taj broj raste do 2024. godine od kada bi se godišnje proizvodilo 180 aviona.

F-35 se koristi iz 23 baze širom sveta a do sada je obuku prošlo više od 985 pilota kao i preko 8.890 pripadnika tehničke službe.

Devet država među kojima su Australija, Holandija, Italija, Izrael, Japan, Južna Koreja, Norveška, Ujedinjeno Kraljevstvo i SAD koriste avione na svojoj teriotriji, osam službi je proglasilo početnu operativnu sposobnost, a pet njih među kojima su RV Izraela, RV i Mornarička avijacija UK kao i RV SAD i Marinski korpusi upotrebili su avione u borbenim operacijama.


Problemi u pravim borbenim uslovima

Iako je Lokid Martin nedavno otkrio da je zadovoljan procentom operativne sposobnosti odnosno stopom mogućnosti izvršenja zadatka aviona F-35, njegovi tehnički problemi uticali su na to da taj procenat još uvek nije na onom nivou koji je propisalo Ministarstvo odbrane SAD.

Proizvođač tvrdi da su RV SAD prilikom izvođenja vežbi "Red Flag" prijavile 90 procenata operativnosti a Marinski korpus 75 procenata u pravim borbenim uslovima iznad Bliskog istoka i Avganistana.

Ipak Ministarstvo odbrane stoji iza toga da celokupna flota aviona F-35 još nije dostigla njen cilj od 80 posto spremnosti koja podrazumeva procenat aviona koji u svakom trenutku mogu obaviti najmanje jednu borbenu misiju.

Problemi F-35 uključuju 13 nedostataka Kategorije 1 koji, prema definiciji RV SAD, mogu uzrokovati smrt ili ozbiljne povrede, gubitak ili veliku štetu na oružanom sistemu, kritično ograničiti sposobnost borbene gotovosti korisnika ili prouzrokovati prekid serijske proizvodnje, piše portal

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« Reply #686 on: May 10, 2020, 07:59:10 am »

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« Reply #687 on: May 10, 2020, 07:39:10 pm »

Letenje nadzvučnom brzinom avionima F-35 će biti ograničeno zbog mogućih oštećenja repnog dela kao i zbog mogućeg gubitka stelt karakteristika.

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The Pentagon will have to live with limits on F-35’s supersonic flights

By: David B. Larter , Valerie Insinna , and Aaron Mehta    April 24

WASHINGTON — An issue that risks damage to the F-35’s tail section if the aircraft needs to maintain supersonic speeds is not worth fixing and will instead be addressed by changing the operating parameters, the F-35 Joint Program Office told Defense News in a statement Friday.

The deficiency, first reported by Defense News in 2019, means that at extremely high altitudes, the U.S. Navy’s and Marine Corps’ versions of the F-35 jet can only fly at supersonic speeds for short bursts of time before there is a risk of structural damage and loss of stealth capability.

The problem may make it impossible for the Navy’s F-35C to conduct supersonic intercepts.

“This issue was closed on December 17, 2019 with no further actions and concurrence from the U.S. services,” the F-35 JPO statement read. “The [deficiency report] was closed under the category of ‘no plan to correct,’ which is used by the F-35 team when the operator value provided by a complete fix does not justify the estimated cost of that fix.

“In this case, the solution would require a lengthy development and flight testing of a material coating that can tolerate the flight environment for unlimited time while satisfying the weight and other requirements of a control surface. Instead, the issue is being addressed procedurally by imposing a time limit on high-speed flight.”

The carrier-launched "C" variant and the short-takeoff-and-vertical-landing "B" version will both be able to carry out all their missions without correcting the deficiency, the JPO said.

The potential damage from sustained high speeds would influence not only the F-35’s airframe and the low-observable coating that keeps it stealthy, but also the myriad antennas located on the back of the plane that are currently vulnerable to damage, according to documents exclusively obtained by Defense News.

The JPO had classified the issues for the "B" and "C" models as separate category 1 deficiencies, indicating in one document that the problem presents a challenge to accomplishing one of the key missions of the fighter jet. In this scale, category 1 represents the most serious type of deficiency.

While it may seem dire that an aircraft procured for flying at supersonic speeds will be unable to do so for extended periods, the F-35 may not need to do it that often.

For the F-35, as opposed to the F-22 where supersonic flight is baked into its tactics, the ability to fly supersonic is more of a “break glass in case of emergency” feature, said Bryan Clark, an analyst with the Hudson Institute and a retired naval officer.

“Supersonic flight is not a big feature of the F-35,” Clark said. “It’s capable of it, but when you talk to F-35 pilots, they’ll say they’d fly supersonic in such limited times and cases that — while having the ability is nice because you never know when you are going to need to run away from something very fast — it’s just not a main feature for their tactics.”

In fact, going supersonic obviates the main advantages of the F-35, Clark said. “It sort of defeats all the main advantages of the F-35,” he explained. “It takes you out of stealthiness, it burns gas like crazy so you lose the range benefits of a single engine and larger fuel tank. When you go into afterburner, you are heating up the outside of your aircraft.”

That creates all kinds of signatures that can be detected by an adversary, Clark said.

What if?

But a retired naval aviator told Defense News last year that the limitations on the afterburner could prove deadly in close-combat scenarios.

The concept of operations for the F-35 is to kill an enemy aircraft before it can detect the fighter jet, but relying on long-range kills is a perspective that, for historical and cultural reasons, naval aviation distrusts. In the Vietnam War, when air warfare began heavily relying on missiles and moved away from the forward gun, it caused a spike in air-to-air combat deaths.

The lesson naval aviation took away was to prevent the latest and greatest technology from offsetting the learning of fundamentals, and it was the impetus behind the formation of Top Gun 50 years ago, a naval strike fighter course for training and tactics development.

“The solution is: ‘Hey, we’ll just limit the afterburner to less than a minute at a time,’ ” a retired naval aviator said when told of the issue. “Which, with what the aircraft is supposed to do and be capable of, that’s a pretty significant limitation.”

Primarily it would be an issue if the aircraft had to maneuver at high speeds to avoid a missile or survive a dogfight.

The issue is compounded for the Navy, which must operate forward for months at a time, because any significant issues with coatings or the structure of aircraft would require a depot-level repair. And so a damaged aircraft would remain damaged until its host ship returns to home port, reducing the combat effectiveness of the air wing.

“We might have to be operating at sea for eight months, so if you damage something on week one, guess what? It’s damaged for the rest of the deployment,” the aviator said. “And it affects your ability to evade detection by the enemy — you just degraded that asset permanently until you can get it somewhere where it can be fixed, at great expense and time.”

Other deficiencies

Three other category 1 deficiencies have also been officially designated as “closed," meaning they have either been fixed or the performance of the aircraft is being accepted as is, the JPO reported.

The so-called green glow deficiency has been closed out as of last July. Green glow refers to a green light emitted by the helmet-mounted display’s LED lights. That glow obstructs a pilot’s view of an aircraft carrier’s deck lights during landing operations at sea in very low light, such as that experienced at night.

The issue was closed “as a result of incorporating an improved Organic Light-Emitting Diode (OLED) Helmet Mounted Display (HMD),” the JPO told Defense News.

“The Generation III F-35 OLED Helmet Display Unit (HDU) significantly reduced the ‘green glow’ experienced by pilots during night operations. The F-35 JPO has taken delivery of the first order of F-35 OLED HDUs to support the U.S. Navy (USN) and U.S. Marine Corps (USMC), and a second order of OLED HDUs has been placed,” the office’s statement read.

An issue created when the F-35A and F-35B blow a tire, which can result in a severed hydraulic line, will remain uncorrected, the JPO statement said, but it has not come up again since the program switched tires.

“The DR [deficiency report] was closed under the category of ‘no plan to correct’ based on the fact that the landing gear system design meets all F-35 safety standards,” the statement read. “Issues related to premature bursting of tires were resolved by tire design changes during early F-35 development and no instances of dual hydraulic system loss caused by a tire burst have ever been observed on an F-35.”

And an issue that forced the F-35 to land in cold weather because of battery trouble has been fixed, the JPO said. The issue was caused by extreme cold entering the plane when the doors to the jet’s nose landing gear were open, setting off alarm bells, according to “for official use only” documents exclusively obtained by Defense News.

The cold would enter the plane and overwhelm the battery heater blanket, which is installed to keep a 28-volt battery running at peak condition. The battery would not shut down, but because of the cold, the blanket could not heat the battery as quickly as intended, triggering warning lights in the cockpit that the battery was going to fail.

A software upgrade fixed the problem, the JPO said.

“This issue was resolved on July 22, 2019 due to improvements in the battery charger’s firmware,” the statement read. “The firmware changes were developed by the battery charger supplier, and integrated and tested by Lockheed Martin and the F-35 Lightning II Joint Program Office.”


Izvor: CLICK
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« Reply #688 on: May 13, 2020, 12:41:25 pm »



Quote
Following routine training operations, F-35s from the Vermont Air National Guard will join a KC-135 from the 914th Air Refueling Wing’s 328th Air Refueling Squadron, Niagara Falls Air Reserve Station, to honor all of those working on the front lines during the COVID-19 crisis, May 12, 2020. The formation of Western New York and New England-based U.S. Air Force aircraft are scheduled to flyover parts of Western New York, including more than 10 hospitals, ending over Niagara Falls.


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« Reply #689 on: May 17, 2020, 01:47:49 pm »



Quote
Footage of the F-35A Lightning II Demonstration Team and 388th Fighter Wing pilots and maintainers as they prepare to launch for the 2020 "Utah Strong" Flyover. The flyover was conducted as part of the "Air Force Salutes" initiative, to showcase support for everyone on the front-lines in the fight against COVID-19, as well as those staying at home to flatten the curve.


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