F-35 Lightning II

Olisikohan Suomen mahdollista käyttää myös F-35:a vuoteen 2070 asti? Riittäisikö siinä kyvykkyyttä vielä sen verran, että voisimme sitä käyttää vuoteen 2070 asti? USA:kin on suunnitellut samaa.

Ei taida olla pelkästään kyvykkyydestä kiinni? Nuorin kone on silloin jotain 40v?

Jos USA käyttää vielä 2070, niin tuskin ne koneet on valmistettu 20 luvulla tai edes 30 luvun alussa.
 
Ei taida olla pelkästään kyvykkyydestä kiinni? Nuorin kone on silloin jotain 40v?

Jos USA käyttää vielä 2070, niin tuskin ne koneet on valmistettu 20 luvulla tai edes 30 luvun alussa.
Hyvä huomio. Muistan, että USA:n puolustushallinnossa olisi sanottu, että F-35:a tuotetaan ainakin vuoteen 2035 asti.
 
Toisaalta F-15C/D:t on valmistettu 79-85 eli vanhimmat ovat jo mahdollisesti yli 40v ja poistopäivää ei ole lyöty lukkoon. A-10:t ovat samalta aikakaudelta ja saman aikakauden F-16A ja F/A-18A -koneita lienee maailmalla vielä palveluksessa.
 
Toisaalta F-15C/D:t on valmistettu 79-85 eli vanhimmat ovat jo mahdollisesti yli 40v ja poistopäivää ei ole lyöty lukkoon. A-10:t ovat samalta aikakaudelta ja saman aikakauden F-16A ja F/A-18A -koneita lienee maailmalla vielä palveluksessa.
F-15 C/D palveluskäytön jatkuminen lienee syytä ennenaikaisesti loppuneesta F-22A tuotannosta. Vasta F-15EX koneen vastaanoton yhteydessä mainittiin että 75% F-15C/D:ä lentää jo yliajalla eli yli rakenteellisen eliniän. Se tarkoittaa varmasti rajoituksia koneen käytössä ja koneista 10% on seisokissa rakenteellisten ongelmien vuoksi. Tilanne ei siis ole mitenkään hyvä ja suunniteltu.

Tulevaisuus on hämyinen eikä tietää voi varmasti että mikä kone jatkaa millekkin vuosikymmenelle. F-15EX hankinta on sinällään jo merkityksellinen ja alleviivaa sitä että 5. sukupolven koneiden suunnittelu kestää liian pitkään ja tuotanto on hidasta sekä kallista. Avioniikkaa ja sensoreita voidaan ympätä 4-gen koneidenkin sisään ja suunnitella uudelleen. Pelkää passiivinen häive ei riitä takeeksi siitä että kaikkien koneiden pitäisi olla sellaisia. On mahdollista että Etelä-Korean ja Japanin konehankkeet ovat sellaisia, joita maat tekevät seuraavaksi. Ne voivat sensorifuusion lisäksi sisältää AI:n ja kyvyn lentää etäohjattuna. Tarvetta ei ole viedä kuitenkaan häivettä äärimmilleen ja tehdä liikaa kompromisseja.

Todellista hävittäjien vallankumousta saadaan vielä odottaa. Se tapahtuu AI:n lisäksi propulsioteknologian kehittyessä niin että hypersooninen lento pitkillä etäisyyksillä on mahdollista.
 
Toisaalta F-15C/D:t on valmistettu 79-85 eli vanhimmat ovat jo mahdollisesti yli 40v ja poistopäivää ei ole lyöty lukkoon. A-10:t ovat samalta aikakaudelta ja saman aikakauden F-16A ja F/A-18A -koneita lienee maailmalla vielä palveluksessa.
Alun perin ei voitu kuvitellakaan, että F-15 lentäisi näin kauan ilmavoimissa. Kun Advanced Tactical Fighteria suunniteltiin 1980-luvun alussa F-15:n korvaajaksi, ATF:n oli tarkoitus tulla operatiiviseen käyttöön 1993-94 ja viimeiset F-15 poistuisi käytöstä n. 2010.
 
Alun perin ei voitu kuvitellakaan, että F-15 lentäisi näin kauan ilmavoimissa. Kun Advanced Tactical Fighteria suunniteltiin 1980-luvun alussa F-15:n korvaajaksi, ATF:n oli tarkoitus tulla operatiiviseen käyttöön 1993-94 ja viimeiset F-15 poistuisi käytöstä n. 2010.
Ilmeisesti ATF osoittautui niin kalliiksi että vanhempia koneita käytetään edelleen koska niillä saadaan helpompia tehtäviä hoidettua paljon halvemmalla.
 
Japan claims that the performance of F-35A exceeds expectations and the range exceeds F-15J
2021-01-31

As the new generation main model of the US military and many of its allies, the F-35 fighter project has been controversial since the day it was born; among the various accusations against it from the outside world, short legs are one of the very common sayings. Many people believe that Lockheed Martin has always refused to disclose the performance data of any model in the F-35 series, in order to cover up some of its unsightly content, and battery life is one of them.
Among Chinese netizens, when mentioning F-35, all kinds of ridicule voices are endless. Some people firmly believe that: J-20 can sling F-35, can crush F-35, can Press the F-35 on the ground and rub it. This also produced a ridiculous logical conclusion: because the J-20 can crush the F-35-so the carrier-based J-20 can crush the F-35 carrier-so the Chinese aircraft carrier can suppress the American aircraft carrier... …

But recently, different voices have been heard from Japan. On November 18, local time, Shigeru Iwasaki, the former integrated chief of staff of the Japanese Ministry of Defense (as opposed to the chief of staff), made a very positive evaluation of the F-35A's comprehensive capabilities at an international defense exhibition: F-35A is very good to Japan. Useful, especially in intelligence gathering. In an interview, Shigeru Iwasaki said that the performance of the F-35 has exceeded the Self-Defense Force’s previous expectations because this fighter has helped Japan acquire the ability to defend against ballistic missiles.
Shigeru Iwasaki also emphasized that the endurance of F-35A fighters exceeds that of F-15J fighters. This allows F-35A fighters to adapt to more types of combat missions than F-15J fighters. In the future, many AWACS ("AWACS" Control”) task can be completed by F-35 in the future. Shigeru Iwasaki did not give specific figures on the endurance of the F-35A, and Lockheed Martin did not release any specific data on the F-35 version. However, based on this conversation, the outside world believes that there are reasons to believe that the F-35A should have a longer flight time than the F-15J.

From the currently public data,It is widely speculated that the F-35A fighter has a combat radius of about 1100 kilometers; while the Japanese F-15J fighter has a maximum range of more than 4,600 kilometers and a combat radius of close to 2,000 kilometers, but this figure is that the F-15 fighter is carrying three auxiliary fuel tanks. , Together with the internal fuel volume of 16 tons of fuel, the endurance that Shigeru Iwasaki claims is more than that of the F-15J, which should be obtained under the same conditions, but even so, the endurance of the F-35 fighter may not be as good as the outside world. It is unbearable as guessed, and it can even be considered that the F-35 fighter jets stay empty for longer than the F-15J.

If this situation is true, I am afraid that it has also been confirmed from the side, why Japan has hurriedly decided to purchase more than 100 F-35 fighters when the cause of the crash of F-35A fighters has not been investigated. It has been decided that, after all, Japan’s missile defense capabilities can be enriched, which is extremely attractive to the Self-Defense Forces, and it does not rule out the continued purchase of F-35 series fighters in the future.
 
Tuossa on vähän avattu miltä MADL:in tulevaisuus voi näyttää.
Eli se voi viestiä tulevaisuudessa hyvin monenlaisten stealth (ja ehkä satelliitti) lennokkien yms. kanssa kaksisuuntaisesti. On kaistaa, kaksisuuntaisuus ja silti pitäisi olla vaikea havaita.

The F-35's Multifunction Advanced Data Link (MADL) is the system that is being adopted not just for its originating aircraft, but also for the B-21, and likely other new stealthy aircraft belonging to a family of systems that will make air combat of the past look quaint in comparison.

MADL can connect F-35s, and in the future, disparate stealthy platforms, together in a secure manner within line-of-sight via a mesh-like network. Just like any fighter datalink system that relies on line-of-sight connectivity, MADL is great for formations of aircraft that operate in the vicinity of one another, but it has major limitations. Namely, the battlefield of tomorrow will be expansive with massive amounts of data accrued from sensors in space, on the ground, at sea, and in the air, both on and over the battlefield and hundreds or even thousands of miles away, along its outer edges. While the F-35's organic electronic intelligence-gathering capabilities are fantastic, and the B-21 will be even more so, they pale in comparison to being able to exploit data from a far larger array of dispersed platforms and intelligence sources, some of which won't have MADL and won't be within line-of-sight of stealthy aircraft with the datalink system.
 
ROBINS AIR FORCE BASE, Ga. --
For the first time ever, Air Force personnel livestreamed F-35 data directly from the aircraft’s mission systems computers to a connected computer tablet during a ground test March 31, 2021, at Nellis Air Force Base, Nevada.

The event was a milestone for the Fighter Optimization eXperiment (FoX), a project that seeks to rapidly integrate advanced software and hardware technologies to maximize the F-35’s lethality and survivability, while creating an agile development test tool and fielded combat multiplier for all DoD aircraft.

“In order to stay competitive, we have to innovate,” said Lt. Col. Raven “Rost” LeClair. “It’s as simple as that. We are trying to find ways to go faster for less money, to bring more capability per dollar, and to push more capabilities to the warfighter more quickly… We want to shift timelines from capabilities being fielded in years to being fielded in a matter of months or weeks; both hardware and software.”
 
F-35:n EW:stä @fulcrum

Sivut 6 ja 7 on paras suppea esitys aiheesta:

B. AN/ASQ-239 Electronic Warfare/Countermeasure System

The AN/ASQ-239 EW/CM system is an integrated suite of hardware and software. It is optimized and designed
to provide the F-35 with a high level of A/A and A/S threat detection and self-protection. It can search, detect, identify,
locate, and counter RF and IR threats. The EW system supports the application of electronic support measures (ESM)
through such functions as:

1) radar warning,
2) emitter geolocation,
3) multi-ship emitter location (including high-sensitivity states),
4) high-gain (HG) ESM,
5) HG electronic CM, and
6) HG electronic attack (EA) via radar MFA utilization.
The EW functions are designed for:
1) wide frequency coverage,
2) quick reaction time,
3) high sensitivity and probability of intercept,
4) accurate direction finding and emitter geolocation,
5) multi-ship geolocation, and
6) self-protection countermeasures and jamming.

The countermeasure subsystem provides multiple self-defense responses, including pre-emptive and reactive
techniques, based on available expendable payload and/or threat-specific self-protection plans. The EW/CM system
provides emitter tracks to the sensor fusion function, which fuses EW track reports and other sensors (e.g., radar and
DAS, off-board sensors) and displays the information to the pilot. The EW/CM system consists of the following
primary elements:
1) Band 3/4 apertures,
2) Band 3/4 aperture electronics,
3) centralized EW electronics (Racks 2A and 2B),
4) CM controller unit,
5) CM dispensers,
6) RF and digital interfaces with the MFA, and
7) digital-clock reference interfaces with the CNI system.

The installation locations of the EW/CM system-related equipment are depicted in (poistettu).
The EW system is common among the three F-35 variants, except for the forward Band 3/4 arrays, which
employ longer elements for the F-35C Carrier Variant (CV). Also differing, the distance between the inboard and
outboard arrays is less on the CV variant due to the wing fold. In addition to the EW Band 3/4 apertures, the radar
MFA is employed to support EW functions. There are growth provisions allocated for Band 5 radar warning such that
Band 5 apertures, aperture electronics, and the Band 5 switch can be incorporated into the EW subsystem architecture.

The EW apertures comprise six multi-element antenna array sets covering portions of the Band 3 and Band 4
frequency spectrum, along with both vertical and horizontal polarization. All the arrays have azimuth (AZ)-only
designs that do not rely on the use of elevation (EL) arrays. The passive array assemblies use a traveling wave-notch
element approach designed to balance gain, polarization, field of view (FOV), and radar cross-section features. Each
Band 3/4 aperture feeds an aperture electronics module that amplifies and passes the detected RF signals from the
apertures. It does this through a switch matrix and tuners that distribute the RF to a set of wideband EW receivers
(EWRs). The switch matrix also receives RF signals from the radar MFA when tasked to support HG modes.
The EWR suite consists of 12 wideband receivers grouped into three integrated sets of four channel receivers. The
wideband receivers take in RF energy and convert the data into digital information via a set of high-speed analog-todigital converters for processing.
Each EWR performs initial data processing and generates pulse parameter reports that are sent to the EW controller/preprocessor.
The processor then provides further signal processing and algorithms to support all EW activities.
Various intelligence products combine to produce an electronic intelligence (ELINT)
database in a preplanned mission data file. This data file provides the system with the necessary parametric
descriptions of the emitters of interest for emitter identification and scan schedule operations.

EW system testing was performed in a buildup fashion of increasingly complex integration into the rest of the
avionics system. The integration began with stand-alone laboratory testing isolated from the rest of the avionics system
and progressed through a Sabreliner T-39-based flying testbed. From there the EW system was integrated into the
F-35 avionics suite to continue both laboratory testing and dynamic open-air testing on the Lockheed Martin CATB.
After the system was proven on the CATB it progressed to full airborne testing on the F-35. The buildup timeline for
the EW system is shown in Fig. 5.

Tuossa Block 4 osalta EW:tä arvioitu.

Aika paljon suolaa saa tosin varata kun puhutaan EA/EW:sta.
 
Sustainment Becoming Most Profitable Part of F-35 for Lockheed Martin
20 Apr 2021 John A. Tirpak

"...The House Armed Services Committee is holding an F-35 hearing on April 22, with testimony to be offered by Gregory M. Ulmer, Lockheed aeronautics vice president and former F-35 program manager; Pratt & Whitney President of Military Engines Matthew F. Bromberg; Diana Maurer of the Government Accountability Office; F-35 Joint Program Office Director Lt. Gen. Eric T. Fick, and Air Force F-35 Integration Office Director Brig. Gen. David W. Abba.

Despite increased profitability, [Lockheed CFO Kenneth R.] Possenriede said the sustainment model for the F-35 is “inefficient,” and he touted the company’s offer of a performance-based logistics contract as the best way to get sustainment costs down. The PBL pitch includes Lockheed and its vendors investing some of their own money in economic order quantities of parts and materials to reduce costs, and going to five-year contracts rather than annual ones....

...As for sustainment, he [James D. Taiclet, Lockheed president and CEO] said a “joint strategy” is needed with the program office and the services; “those who will actually have to fix this aircraft and maintain it in the field.” They need to seek “the right level of funding for spare parts, etc., and really, clearly define responsibilities for the depot system, for frontline maintenance, and for the OEM and our supply chain.”

All this is, “I think, a very doable thing,” Taiclet said, “And we’re embarking on that, led by the Joint Program Office and the service Chiefs.” The program goal of getting operating costs down to $25,000 per flying hour in 2012 dollars—versus $35,000 now—“if we work with them, is achievable.”..."
 
Tuota samaa se on ollut jo pitkään: valmistaja uskoo käyttökustannusten edelleen laskevan 25 k ja USAF ei usko. Siivet 2/21 viitattiin USAF johtamisjärjestelmä ACC:n komentajan, kenr. Mark D. Kellyn epäilleen tuon saavuttamista. Sitä samaa on kuultu jo eri puolilta.

Kun uusi TacAir-tutkimus valmistuu, siinä F-35 tilausta voidaan pudottaa melkoisestikin. ATS:t ja gen 4.5 koneet voivat korvata osan F-35 koneista ennen NGAD saapumista.
Se tarkoittaa vain hankintahintojen nousua uudelleen ja ylläpidon kallistumista entisestään. L&M tai muut valmistajat eivät maksa sitä omasta pussistaan, vaan lihava riita on tulossa jos näin käy.

Tuo Digital Century Serieskin epäilyttää suuresti minua kustannussäästöiltään, kun edellinen USAF hankintajohtaja, William B. Roper on ottanut mallia siihen älypuhelimista. Tiedä sitten paljonko hävittäjillä ja kännyköillä on yhteistä.....:rolleyes:
 
Tuota samaa se on ollut jo pitkään: valmistaja uskoo käyttökustannusten edelleen laskevan 25 k ja USAF ei usko. Siivet 2/21 viitattiin USAF johtamisjärjestelmä ACC:n komentajan, kenr. Mark D. Kellyn epäilleen tuon saavuttamista. Sitä samaa on kuultu jo eri puolilta.

Kun uusi TacAir-tutkimus valmistuu, siinä F-35 tilausta voidaan pudottaa melkoisestikin. ATS:t ja gen 4.5 koneet voivat korvata osan F-35 koneista ennen NGAD saapumista.
Se tarkoittaa vain hankintahintojen nousua uudelleen ja ylläpidon kallistumista entisestään. L&M tai muut valmistajat eivät maksa sitä omasta pussistaan, vaan lihava riita on tulossa jos näin käy.

Tuo Digital Century Serieskin epäilyttää suuresti minua kustannussäästöiltään, kun edellinen USAF hankintajohtaja, William B. Roper on ottanut mallia siihen älypuhelimista. Tiedä sitten paljonko hävittäjillä ja kännyköillä on yhteistä.....:rolleyes:
Ainakaan ennakkotapaukset eivät puhu sen puolesta, että USAF:n F-35:n tilausmäärä pysyisi samana. F-22:n määrää leikattiin ja tuotanto lakkautettiin, B-2:n määrää leikattiin ja tuotanto lakkautettiin, jne...

Joten sinänsä, jos USAF viilaisi muutaman sadan verran tilauksestaan pois, en olisi yllättynyt, mutta kuitenkin kyllä itse olisin silloin pettynyt, koska tuon jälkimainingeissa heijastuisi vaikutuksia meille (jos me valitsemme F-35:n).
 

F-35s Leeuwarden grounded as a precaution​

News release | 22-04-2021 | 09:37

Grit spray on 3 F-35s may have caused engine wear. The grit would come from an anti-slip layer of the runway system at Leeuwarden Air Base. It is being investigated whether this is indeed the cause. The engine wear was discovered on the Frisian base during standard inspections.

As far as is known, the Netherlands is the only F-35 flying country that has this wear and tear on F-35 engines.

**

The F-35 has a heavier engine than an F-16 and therefore blows up more grit during taxi. This form of wear was not detected with the F-16. The take-off and landing system is also in good condition.
 

“The program is over budget. It fails to deliver on promised capabilities. And its mission capability rates do not even begin to meet the service thresholds,” Garamendi said. “Industry’s solution to many of these problems is simply to ask the taxpayers to throw money at the problem. That will not happen. The easy days of the past are over.”

Kyllä se on liian kallis meille.
 

“The program is over budget. It fails to deliver on promised capabilities. And its mission capability rates do not even begin to meet the service thresholds,” Garamendi said. “Industry’s solution to many of these problems is simply to ask the taxpayers to throw money at the problem. That will not happen. The easy days of the past are over.”

Kyllä se on liian kallis meille.
Joo kyllähän tässä tällaisten uutisten myötä F-35:ssa vaikuttaa olevan suuriakin riskejä, jotka realisoituessaan saattaisivat aiheuttaa painajaistilanteen Puolustusvoimille, jos ilmavoimille varattu kakku ei riitäkään isolla marginaalilla ja maa - ja merivoimilta jouduttaisiin ottamaan yhdeksännumeroisia summia ilmavoimille.

Rafale on se turvallisin vaihtoehto, kun mietitään yhdistelmänä suorituskykyä, elinkaarta ja kustannuksia.
 
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