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F-35 Cancelled, then what ?

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F-35 Cancelled, then what ?

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Old 22nd Dec 2016, 16:33
  #10001 (permalink)  
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It is of course possible the additional unexpected loads are generated by the turbulence of flying around with the bomb bay open half the time......
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Old 22nd Dec 2016, 18:37
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For ORAC:
http://www.pprune.org/9590892-post9915.html POST 9915 on page 496 this thread:
" • The following details discoveries in F-35B flight sciences testing:
- Testing to characterize the thermal environment of the weapons bays demonstrated that temperatures become excessive during ground operations in high ambient temperature conditions. As a result, during ground operations, fleet pilots are restricted from keeping the weapons bay doors closed for more than 10 cumulative minutes prior to take-off when internal stores are loaded and the outside air temperature is above 90 degrees Fahrenheit. Time with the weapons bay doors closed in flight is currently not restricted."
http://aviationweek.com/site-files/a...l%20Report.pdf
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Old 22nd Dec 2016, 19:02
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http://www.f-16.net/forum/download/f...cee74c04c81b95

"during ground operations, fleet pilots are restricted from keeping the weapons bay doors closed for more than 10 cumulative minutes prior to take-off when internal stores are loaded and the outside air temperature is above 90 degrees Fahrenheit. In flight, the 10-minute restriction also applies when flying at airspeeds equal to or greater than 500 knots at altitudes below 5,000 feet; 550 knots at altitudes between 5,000 and 15,000 feet; and 600 knots at altitudes between 15,000 and 25,000 feet. ......
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Old 22nd Dec 2016, 19:07
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ORAC my reference is to the F-35B which is the variant under discussion.
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Old 22nd Dec 2016, 19:11
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If you are stating definitively that the F-35B does not have the same restrictions, my apologies. Though I do find it surprising, as I would have thought the reduced capacity would make heat dispersal even more of an issue, especially when taking IR signature into account.
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Old 22nd Dec 2016, 22:11
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Trump adds his five cents.

https://twitter.com/realDonaldTrump/...61677160202240

"Based on the tremendous cost and cost overruns of the Lockheed Martin F-35, I have asked Boeing to price-out a comparable F-18 Super Hornet!"
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Old 23rd Dec 2016, 00:32
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I have asked Boeing to price-out a comparable F-18 Super Hornet!
5 cents, was the comment even worth as much as that?

Proof, if it were even needed, that 'the Donald', hasn't got a clue...

-RP
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Old 23rd Dec 2016, 01:24
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I'd like to see what a "comparable" F-18 super hornet looks like ... in terms of how one could compare a 20 year old (but proven) fighter to something quite a bit different.

Are they both comparable by both being fruits of the poison tree of Congressional mandates on "one size fits all" designs?
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Old 23rd Dec 2016, 03:34
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The Russians must really be intimidated by the F-35 to have Cheeto try to disrupt the program.

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Old 23rd Dec 2016, 04:30
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Just wondering

With all the long range goodies on our ' fighters ' available since the 60's, I wonder if the ROE re requiring a visual contact before firing is still standard in an air to air situation ??

Other than escaping an incomeing miussile ( very important ) why the old meme re ' dogfighting superiority ' is still being pushed ?


for example

https://theaviationist.com/2015/10/3...dafis-mig-23s/
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Old 23rd Dec 2016, 09:33
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Considering the Donalds latest statement on "nukes", that trillion dollar in life service quotation for F35 would sure come in handy to help pay for the required modernisation and upgrades ...
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Old 23rd Dec 2016, 09:45
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I'm intrigued. Donald wants a price for an f18 that performs comparably with the F35... Why reduce the capability of the F18 ?
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Old 23rd Dec 2016, 11:15
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Originally Posted by AnglianAV8R
I'm intrigued. Donald wants a price for an f18 that performs comparably with the F35... Why reduce the capability of the F18 ?
I'm certain our resident F35 SJW's will be along shortly to defame your reputation for that slur 'AV8R. .
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Old 23rd Dec 2016, 11:45
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Quote
"The Russians must really be intimidated by the F-35 to have Cheeto try to disrupt the program.
The Sultan"


Sorry for maybe disappointing you, but nobody here is scared of (or even concerned with) this ugly and overpriced plane. An easy target for modern (to say nothing of the future) anti-aircraft systems.
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Old 23rd Dec 2016, 12:01
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Rewatching some amazing footage of Bs on USS America
Video: Watch As F-35B Nails Vertical Landings Aboard USS America | Defense content from Aviation Week

I was struck again by how fragile that big door over the liftfan looks.

What happens if that door jams shut during seaborne ops? Presumably it would mean the loss of the airframe and hence, I can only hope, a Martin Baker letdown for the driver.

Or is there a jettison thingy for that door?

As ever, I don’t think this has been covered before in the thread - but if it has, I apologise….

airsound
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Old 23rd Dec 2016, 13:22
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I was struck again by how fragile that big door over the liftfan looks.
The correct name for it is 'Bin Lid' - Airsound.
Either the door or its support structure will give problems at some stage LOL
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Old 23rd Dec 2016, 14:33
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I'm indebted to my honourable (and longitudinal) friend for the terminological correction.

I like 'bin lid'

airsound
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Old 23rd Dec 2016, 14:35
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The trash can lid on the B does indeed "look" fragile. I was watching B's in the pattern at Patuxent River at 100+ knots and it does look like the whole thing should rip off, but obviously much more robust than it appears, and with so much air being sucked through the fan, the loads are not directly on the door.


I was wondering whom will be first to paint something on the inside of the lid- like the eyes on the cranked up F-8 Crusader wing. Would look great, but I'm sure the designers would cringe with the thought of paint chips going through the fan...
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Old 23rd Dec 2016, 14:44
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sandiego
it does look like the whole thing should rip off
I presume ripping off would not be as catastrophic as being stuck shut, which would prevent vertical landing (embarrassing when you're at sea).

airsound
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Old 23rd Dec 2016, 15:03
  #10020 (permalink)  
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Longer_ron,

Ref Lift Fan Inlet Door redesign, they went through between 2007-2010.

http://www.enu.kz/repository/2011/AIAA-2011-6940.pdf
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