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Author Topic: F-35 Lightning II  (Read 306424 times)
 
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dogfight
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« Reply #15 on: August 25, 2011, 06:14:44 am »

- Ne samo da je F-22 Raptor u sastavu vazduhoplopvstva USA više prizemljen nego što leti, već i serjske proizvedene F-35A prate nevolje. U zadnja dva izdanja Flight International, vidimo da je prizemljena i flota 20. -  F-35 A . Zaista ekonomski gledano "bunar bez dna" i za jednu USA.
- Da ne pominjem da se ovde radi o konvencionalnom poletanju a ne još naprednijem F-35B koga je američki kongres stavio na "stend-by" !

- Stoga nečudi da se USA airforc okreće još dubljoj modernizaciji F-18, ugradnjom IRST i još naprednijom avionikom od F-18 Super Hornet o čemu takođe Flight International izveštava , kao i Airforce daily. Ceo citat o prizemljenju flote F-35A :

- DATE:03/08/11
SOURCE:Flight International
- F-35 fleet grounded after electrical subsystem failure .

- The Lockheed Martin F-35 fleet is grounded while the joint programme office (JPO) investigates the cause of a failure in the aircraft's electrical system during ground tests.
The failure occurred on an F-35A conventional take-off and landing test aircraft, numbered AF-4, but the precautionary grounding applies to all 20 F-35s that had reached flying status, according to a JPO statement.
"Once the facts are understood, a determination will be made when to lift the suspension and begin ground and flight operations," the JPO said.
The incident marks the third grounding order for the F-35 fleet since last October, and the second in five months involving the AF-4 test aircraft.
In this case, the Honeywell-built integrated power package (IPP) failed during a standard engine test following a maintenance check at 08:30 on 2 August, the JPO said.
The IPP is primarily used as both a starter for the engine and a back-up electrical system, supporting the two main generators. In March, the IPP proved its worth by activating after both generators shut-down with AF-4 still in flight. The power generated by the IPP allowed the flight control system to keep operating until the pilot landed.
That incident also triggered a fleet-wide grounding in March until Lockheed fixed a flaw with a new generator system design introduced on AF-4. Some aircraft remained grounded for several weeks until the problem was fixed.
Last October, the fleet was also grounded after Lockheed discovered a software glitch that could have allowed the fuel pump to shut down above 10,000ft (3,050m).
The electrical system has been the cause of three of four major incidents so far during the development phase. The first incident was recorded in May 2007, when the test aircraft numbered AA-1 experienced an electrical short that disabled flight controls on the horizontal stabliser.
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pvanja
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« Reply #16 on: September 07, 2011, 04:23:52 pm »

Uobicajeni problemi sa novom tehnologijom i opremom i razuman sigurnosni potez ali u dosta problemticno vreme za projekat koji debelo kasni.

Glavni problem sa F-35 (i ostalim) je bila Busova administracija koja je lecila sve problemem u projektu F-35 dodanim pumpanjem kesa sto nije bas uvek pravo resenje.

U vreme Busa mladjeg trosile su se strahovite kolicine novca za vojsku i to dosta nerezonski.

I pored tolikog novca projekat kasni i probio je nezna se koliko budzeta.
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dogfight
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« Reply #17 on: September 10, 2011, 08:58:35 pm »

- F-35A ponovo u vazduhu - (najskuplji avio projekat u istoriji Pentagona) :

- Link : http://www.defensenews.com/story.php?i=7422962&c=AME&s=AIR

- Link: http://www.defensenews.com/story.php?i=7487689&c=AIR&s=TOP

 


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dogfight
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« Reply #18 on: September 14, 2011, 01:33:03 am »

- Bočni izlgled AESA radara APG-81 na F-35 :


* AESA - APG-81 - na F-35 USA.jpg (123.08 KB, 400x267 - viewed 817 times.)
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dogfight
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« Reply #19 on: October 05, 2011, 01:21:08 am »

- Snimak testiranja sletanja F-35B na nosač palube i potom par odlučnih video prikaza F-35. Da li će najskuplji projek u istoriji Pentagona F-35B najzad zaživeti videćemo? Ogroman novac je uložen u razvoj da bi se SAD tako olako rešile ovog futirističkog aviona 5.generacije. Da li su boljke sa pogonskom grupom F-135 preležane nakon dugog testiranja ?

  <iframe width="720" height="420" src="//www.youtube.com/embed/o7cAmCCmObw?fs=1&start=" frameborder="0" allowfullscreen="true"></iframe>
 
  <iframe width="720" height="420" src="//www.youtube.com/embed/SbnWg4v6iHk?fs=1&start=" frameborder="0" allowfullscreen="true"></iframe>

  <iframe width="720" height="420" src="//www.youtube.com/embed/nghwyrjgwNI?fs=1&start=" frameborder="0" allowfullscreen="true"></iframe>

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  <iframe width="720" height="420" src="//www.youtube.com/embed/5lPZDc8mzsY?fs=1&start=" frameborder="0" allowfullscreen="true"></iframe>

  - Na zadnjoj slici F-35B demonstrira kratatak STOVL i velikim brojem zastava potencijanih kupaca - (verovatno nedostaje Izrael). Veliki je devizni kolač u pitanju a i nacionalni ponos SAD da i pored silnih povuci - potegni  stopiiranja pa odobravanja kongresa stopira ravoj F-35B verzije.


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SHOOTER
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« Reply #20 on: October 25, 2011, 05:01:08 am »

"Canada's first F-35s won't have built-in ability to communicate in Arctic"

Kratak opis informacije: Kanadski F-35 nece moci komunicirati u Artickim delovima zemlje neko vreme. Navodno problem je softver koji je trebao da obezbedi satelitska komunikacija. Problem se treba resiti navodno do 2019 (malo cudno...)


OTTAWA - Canada's new multibillion-dollar stealth fighters are expected to arrive without the built-in capacity to communicate from the country's most northerly regions — a gap the air force is trying to close.

A series of briefings given to the country's top air force commander last year expressed concern that the F-35's radio and satellite communications gear may not be as capable as that of the current CF-18s, which recently went through an extensive modernization.

Military aircraft operating in the high Arctic rely almost exclusively on satellite communications, where a pilot's signal is beamed into space and bounced back down to a ground station.

The F-35 Lightning will eventually have the ability to communicate with satellites, but the software will not be available in the initial production run, said a senior Lockheed Martin official, who spoke on background.

It is expected to be added to the aircraft when production reaches its fourth phase in 2019, but that is not guaranteed because research is still underway.

"That hasn't all been nailed down yet," said the official. "As you can imagine there are a lot of science projects going on, exploring what is the best . . . capability, what satellites will be available."

Additionally, Canada's request to have the upgrade placed in the fourth phase will compete with software changes sought by other countries. Norway, for example, wants to use its own missiles on the F-35 rather than U.S.-made weapons.

Defending the Arctic is one of the Harper government's key justifications for buying the aircraft, which are estimated to cost between $16 and $30 billion, including long-term maintenance.

A Defence Department spokesman denied that the F-35's communications suite will be less effective than that of CF-18s, but acknowledged that so-called beyond-line-of-sight communications is a concern.

"Communications in the Arctic represents a specific challenge to all aircraft due to lack of satellite coverage in the north," said Evan Koronewski in an email response. "Canada is working closely with the other partner nations to ensure Canadian operational requirements for communications in the Arctic are met."

Air force planners recognized the problem last year and are "considering a back-up," said an April 2010 briefing.

A study is looking at whether an external communications pod can be installed on the F-35.

Koronewski said it is one of "many options" being investigated, but wasn't able to discuss other potential solutions.

The sophisticated pods, which are carried by the CF-18s, were purchased as part of the $2.6-billion fleet upgrade, which began in 2000.

The briefing to the chief of air staff noted that installing such pods could be made more affordable if other countries participated.

The communications problem is just one of several technical issues the air force is working on.

National Defence has asked the U.S. manufacturer whether it's possible to install a different air-to-air refuelling system on Canadian F-35s. Most other air forces in the world have stopped using what's known as a "probe and drogue" connection, opting instead for a plug-in receptacle which connects to a boom on the tanker aircraft.

The request was made because it's unclear when Canada will able to upgrade its air-to-air refuellers with the booms. Lockheed Martin says it can equip the F-35s to use both systems, but a decision on whether to spend money on modification has yet to be made.

Link: http://ca.news.yahoo.com/canadas-first-f-35s-wont-built-ability-communicate-184717722.html



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pvanja
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« Reply #21 on: December 13, 2011, 07:29:22 pm »

Zadnja racunica norvezana o troskovima za F-35.
Cena sa amortizacijom, remontima itd za 30 godina upotrebe: 235 milijardi kruna tj oko 45 milijardi USD.
Cifra od koje se coveku zavrti u glavi.
Ovo je sve na osnovu plana za nabavku 48 komada od kojih su 8 dvosedi.


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Trifko
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Од свих ратника најјача су два: време и стрпљење.


« Reply #22 on: December 20, 2011, 06:19:35 pm »

   
Japan kupuje američke lovce F-35


www.blic.rs Beta - AP    | 20. 12. 2011.
[ Attachment: You are not allowed to view attachments ]
Tokio - Japan je odlučio da "stelt" lovcima F-35 kompanije Lokid Martin (Lockheed) obnovi zastarelu vojnu flotu i tako poboljša odbranu u uslovima neizvesnosti u regionu.

U sklopu višegodišnjeg sporazuma, Japan će kupiti 42 lovca F-35 i već je budžetom za iduću fiskalnu godinu, koja počinje u aprilu, predvideo troškove za prva četiri lovca.- Naša odluka o kupovini borbenih aviona nove generacije izuzetno je važna za nacionalnu bezbednost i želimo da dobijemo lovce solidnih mogućnosti - kazao je danas na konferenciji za štampu ministar odbrane Jasuo Ićikava.
 
Odluka zvaničnog Tokija objavljena je u trenutku pojačanih bojazni oko stabilnosti u regionu nakon smrti Kim Džong Ila, lidera Severne Koreje koja radi na programu nuklearnog naoružanja.
 
Japan će Lokidu platiti 65 miliona dolara po lovcu a sporazumom o kupovini precizirano je i vreme isporuke.
 
Inače, Japan je godinama razmatrao da li da kupi lovce F-35 ili Boingove F-18 ili pak Jurofajterove Tajfune koje proizvodi konzorcijum evropskih kompanija.
 
Japan ima 362 borbena aviona, uglavnom F-15, F-4 i F-2, i već je jedna od vodećih vojnih avio-sila u regionu.
 
Međutim, neki lovci su već stari i njihovo održavnje je skupo. Novi avioni će zameniti one tipa F-4 u japanskoj floti.
 
Lokid je, uz prodaju lovaca F-35, obećao Japanu i udeo u sklapanju i proizvodnji letelica, što je važno za japanske proizvođače.


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langsdorff
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« Reply #23 on: December 21, 2011, 04:48:12 pm »

           Veliki napredak za Japansko vazduhoplovstvo. Mislim da je odluka isrpavna, posebno ako budu ucestvovali u sklapanju i proizvodnji istih. Zmameniti stare f-4 novim f-35 je zaista veliki korak za Japance, koji ce ne sumnjivo ojacati njihov znacaj u regionu. Na ovaj nacin izvrsice se neophodna modernizacija, a ratno vazduhoplovstvo dobice jedan ultra moderan borbeni avion.
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pvanja
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« Reply #24 on: December 22, 2011, 09:17:09 am »

"Japan će Lokidu platiti 65 miliona dolara po lovcu a sporazumom o kupovini precizirano je i vreme isporuke."

Cena od 65 mil usd mi je mala. Pretpostavljam da je to cena aviona bez rezervnih delova i naoruzanja.
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MOTORISTA
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« Reply #25 on: December 22, 2011, 09:23:20 am »

Baš je to mala cena, jeste da wiki nije baš najbolji izvor, ali se tamo navodi da su cene za F35 sledće:

F-35A: US$122 million (flyaway cost, 2011)
F-35B: US$150M (avg. cost, 2011)
F-35C: US$139.5M (avg. cost, 2011)

http://en.wikipedia.org/wiki/F-35_Lightning_II

Interesantan je podatak da Kanada kupuje 65 aviona F-35 za 16 milijardi dolara, u šta je uračunato sve što je moglo da se uračuna.

Holanđani naručuju 85 primeraka, čija će ukupna cena koštanja ( letelice i održavanje za sledećih 30 godina) koštati 14,6 milijardi zelembaća.

http://en.wikipedia.org/wiki/Lockheed_Martin_F-35_Lightning_II_procurement
« Last Edit: December 22, 2011, 09:34:28 am by MOTORISTA » Logged
pvanja
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« Reply #26 on: December 22, 2011, 11:38:26 am »

Evo malo sam pretrazivao po Palubi i u temi o F-35 iz 2008 se spominje cena od oko 40 mil usd za F35A i 60 mil usd za F35B VSTOL.
https://www.paluba.info/smf/index.php?topic=808.0

Onda u Izarelskom ugovoru stoji neka cena od 137 mil usd po kodadu sa infrastrukturom (2.75 milijarde usd za 20 aviona). Podatak iz 2010.
https://www.paluba.info/smf/index.php?topic=12432.0

Norvezane ce izaci po zadnjoj racunici oko 100 mil usd po avionu sa amortizacijom i remontima za 30 godina (45 milijardi usd za 48 aviona (od toga 8 dvoseda)).
Podatak iz 2011. Norvezani su Level 3 partneri u razvoju aviona. Dok Japanci nisu ucestvovali.
https://www.paluba.info/smf/index.php?topic=15074.0

« Last Edit: December 22, 2011, 11:44:07 am by pvanja » Logged
kumbor
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« Reply #27 on: December 22, 2011, 12:11:08 pm »

I to se zove affordable avion, koji treba da zameni u perspektivi hiljade F-16 u službi? Bezobrazluk. A uz to je avion za sada pun problema. Da li se zna uopšte kako to čudo leti. Pa ceo srpski vojni budžet bi bio dovoljan za tri aviona, bez plata i marende. Vidim ja da će se smanjivati naručene količine, i to drastično.
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pvanja
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« Reply #28 on: December 22, 2011, 12:36:46 pm »

Zato se i bore da ih uvale sto vecem broju zemalja kako nebi smanjivali broj prizvedenih priemeraka jer su potrosili ogroman noavac na razvoj F-35 i probili budzet xxx% (planirani troskovi razvoja su 40 milijardi USD.).

Inace plan je bio da US kupi 2400 komada a ostale zemlje 3100 komada.

Prilicno sam siguran da ako uspeju 50% ovog da ostvare trea da budu presrecni.
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« Reply #29 on: December 23, 2011, 01:34:08 pm »

Zato se i bore da ih uvale sto vecem broju zemalja kako nebi smanjivali broj prizvedenih priemeraka jer su potrosili ogroman noavac na razvoj F-35 i probili budzet xxx% (planirani troskovi razvoja su 40 milijardi USD.).

Inace plan je bio da US kupi 2400 komada a ostale zemlje 3100 komada.

Prilicno sam siguran da ako uspeju 50% ovog da ostvare trea da budu presrecni.
Pvanja je optimista, to su onda jopet  bilioni dolara(hiljade milijardi). Posle ovog tumbanja koje se tek zahuktava, sve će biti drugačije, ako bude pameti pre nego neko dohvati gumbić.
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