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Thread: What is up with the F-35? Part II

  1. #1621
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    Quote Originally Posted by jlvfr View Post
    Possible fix to landing gear about to be tested by the USN, because of the prolems on catapulting. If that doesn't work "it may require the Navy more extensive fixes to the nose gear and the helmet display". Ie, lots more time & money...
    Which is exactly what LRIP and Operational testing is all about.
    “We had been hopelessly labouring to plough waste lands; to make nationality grow in a place full of the certainty of God… Among the tribes our creed could be only like the desert grass – a beautiful swift seeming of spring; which, after a day’s heat, fell dusty.”
    ― T.E. Lawrence, Seven Pillars of Wisdom: A Triumph

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    Quote Originally Posted by citanon View Post
    F35As just went 15:1 against advanced air threats at Red Flag:

    http://www.reviewjournal.com/news/mi...flag-excercise
    Going to point out that laser tag diesn't ciunt since the F35 as it is right now can't actually carry the sidewinder or AMRAAM.....

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    Quote Originally Posted by zraver View Post
    Going to point out that laser tag diesn't ciunt since the F35 as it is right now can't actually carry the sidewinder or AMRAAM.....
    there are also a host of unknown factors that went into those results....

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    Quote Originally Posted by bfng3569 View Post
    there are also a host of unknown factors that went into those results....
    The F35 still cant actually fire any missiles.... The sidewinder wint fit in the wing rails(and destroy stealth if they did) and the internal bay vibrates too bad when open to launch an amraam at combat speeds.

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    Quote Originally Posted by zraver View Post
    The F35 still cant actually fire any missiles.... The sidewinder wint fit in the wing rails(and destroy stealth if they did) and the internal bay vibrates too bad when open to launch an amraam at combat speeds.
    The only thing I found about vibration and the AMRAAM was from 2014 prior to USMC IOC and wasn't indicated to be a show stopper, just outside what had been tested previously.

    "Although with the bay doors open, the F-35 generates vibration levels exceeding those against which the Amraam has been tested, “right now I don't have any indication this is an aircraft problem,” Wagner says. “Because the bay doors are open for only a very limited amount of time, . . . that short duration is significant, but it is not something that I am too worried about.”

    "Wagner says the thermal and vibration analysis should be complete in the next 15 months"


    The F-22 also has vibration issues with the AIM-120C that the AIM-120D apparently solves, so I think it's something unique to that version of the missile.

    "In previous tests with the C-7 (the AIM-120C), measurements determined that vibration levels in certain frequencies were harmful to the missile's electronics, Mr. Besson said."

    http://www.edwards.af.mil/News/Artic...oise-vibration

    This source has F-35s firing internally carried AIM-120Cs BVR and taking HOBS shots with externally carried AIM-9Xs at drone targets since at least August of 2016.
    http://www.edwards.af.mil/News/Artic...-air-kill-test

    I haven't heard anything about AMRAAM issues lately. Do you have a recent source?
    Last edited by SteveDaPirate; 24 Feb 17, at 01:31.

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    Quote Originally Posted by SteveDaPirate View Post
    The only thing I found about vibration and the AMRAAM was from 2014 prior to USMC IOC and wasn't indicated to be a show stopper, just outside what had been tested previously.

    "Although with the bay doors open, the F-35 generates vibration levels exceeding those against which the Amraam has been tested, “right now I don't have any indication this is an aircraft problem,” Wagner says. “Because the bay doors are open for only a very limited amount of time, . . . that short duration is significant, but it is not something that I am too worried about.”

    "Wagner says the thermal and vibration analysis should be complete in the next 15 months"


    The F-22 also has vibration issues with the AIM-120C that the AIM-120D apparently solves, so I think it's something unique to that version of the missile.

    "In previous tests with the C-7 (the AIM-120C), measurements determined that vibration levels in certain frequencies were harmful to the missile's electronics, Mr. Besson said."

    http://www.edwards.af.mil/News/Artic...oise-vibration

    This source has F-35s firing internally carried AIM-120Cs BVR and taking HOBS shots with externally carried AIM-9Xs at drone targets since at least August of 2016.
    http://www.edwards.af.mil/News/Artic...-air-kill-test

    I haven't heard anything about AMRAAM issues lately. Do you have a recent source?
    It (AMRAAM) was mentioned in passing in an article talking about the wing tip issue with the sidewinder.

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    Gen Carlisle recommends accelerated F35 buy, early development of PCA, development of penetrating electronic attack, and equipping force with 5th gen weapons.

    http://www.nationaldefensemagazine.o...t.aspx?ID=2425

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    Quote Originally Posted by zraver View Post
    The F35 still cant actually fire any missiles.... The sidewinder wint fit in the wing rails(and destroy stealth if they did)
    Looks like they fit back in 2016

    http://www.popularmechanics.com/mili...r-to-air-kill/

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    The 35 has configurable rails, just like the F-18s.

    FYI , F-22s got AIM-9 capability this month.

    http://www.janes.com/article/45114/l...aim-9x-missile
    Its called Tourist Season. So why can't we shoot them?

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    Quote Originally Posted by Stitch View Post
    Knowledgeable sources say the real credit for the savings should go to the Air Force director of the program, Lt. Gen. Chris Bogdan, and that this has "been in the works for many months":

    F-35A Drops Below $100M; Trump Pentagon Trumpets Jobs

    Either way, this now gets the initial cost of the F-35 down around where they predicted it would be 10 years ago.
    Trumps claims of making savings are a nonsense. The price is as per the LRIP schedule. eg the RAAF price was and still is $86m and falls in that delivery cycle.

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    Quote Originally Posted by jlvfr View Post
    Aaaaand up goes Boeing stocks... untill the USN says "hell no"...
    The USMC certainly doesn't want additional Shornets or AShornets

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    Quote Originally Posted by citanon View Post
    F35As just went 15:1 against advanced air threats at Red Flag:

    http://www.reviewjournal.com/news/mi...flag-excercise
    actual end of exercise numbers were 145:7 or greater than 20:1 in rounding up

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    Quote Originally Posted by gf0012-aust View Post
    actual end of exercise numbers were 145:7 or greater than 20:1 in rounding up
    Amazing!

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    Quote Originally Posted by Gun Grape View Post
    Looks like they fit back in 2016

    http://www.popularmechanics.com/mili...r-to-air-kill/

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    The 35 has configurable rails, just like the F-18s.

    FYI , F-22s got AIM-9 capability this month.

    http://www.janes.com/article/45114/l...aim-9x-missile
    There is a problem firing the missile from Aviation Week.

    http://aviationweek.com/defense/f-35...s-carry-aim-9x

    F-35C Needs New Outer Wings To Carry AIM-9X

    [QUOTE]The head of the F-35 Joint Program Office (JPO) says the outer wings of 32 carrier-based C-models need to be replaced to carry the Raytheon AIM-9X Sidewinder, the aircraft’s primary dogfighting weapon.
    The U.S. Navy variant experienced an undisclosed amount of oscillation or turbulence during flight trials with the AIM-9X in December 2015, and Lt. Gen. Christopher Bogdan says aircraft already delivered need to be retrofitted with strengthened wings.

    “It was discovered the outer, folding portion of the wing has inadequate structural strength to support the loads induced by pylons with AIM-9X missiles during maneuvers that cause buffet,” Bogdan says in written testimony to Congress on Feb. 16.

    Engineers have already produced an enhanced outer wing design, which is now undergoing flight testing. The issue has impacted the timeline for fielding AIM-9X, which is being rolled out for the Navy in Block 3F. “Once the new design is verified to provide the require strength, the fix will be implemented in production and retrofitted to existing aircraft by swapping existing outer wings with the redesigned ones,” Bogdan writes.

    The AIM-9X is the heat-seeking sidekick to the Raytheon AIM-120C advanced medium-range air-to-air missile. Without it, the F-35 would be incapable of high off-boresight shots at close range. Because of a seven-year schedule delay, the fifth-generation fighter will carry air superiority missiles that are one generation behind its legacy counterparts, which are already carrying the newest AIM-9X Block II and AIM-120D. [QUOTE]

    Also from Aviation Week US Air force combat readiness F-22A 60% the F-35A 65%
    Last edited by Dazed; 27 Feb 17, at 21:38.

  15. #1635
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    Quote Originally Posted by Dazed View Post
    There is a problem firing the missile from Aviation Week.

    http://aviationweek.com/defense/f-35...s-carry-aim-9x

    F-35C Needs New Outer Wings To Carry AIM-9X

    The head of the F-35 Joint Program Office (JPO) says the outer wings of 32 carrier-based C-models need to be replaced to carry the Raytheon AIM-9X Sidewinder, the aircraft’s primary dogfighting weapon.
    The U.S. Navy variant experienced an undisclosed amount of oscillation or turbulence during flight trials with the AIM-9X in December 2015, and Lt. Gen. Christopher Bogdan says aircraft already delivered need to be retrofitted with strengthened wings.

    “It was discovered the outer, folding portion of the wing has inadequate structural strength to support the loads induced by pylons with AIM-9X missiles during maneuvers that cause buffet,” Bogdan says in written testimony to Congress on Feb. 16.

    Engineers have already produced an enhanced outer wing design, which is now undergoing flight testing. The issue has impacted the timeline for fielding AIM-9X, which is being rolled out for the Navy in Block 3F. “Once the new design is verified to provide the require strength, the fix will be implemented in production and retrofitted to existing aircraft by swapping existing outer wings with the redesigned ones,” Bogdan writes.
    Doesn't affect the 35 A or B.

    Do you know why the C cannot carry the 9X on the 4 inboard pylons? Looks like all but station 6 are AA capable
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    Its called Tourist Season. So why can't we shoot them?

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