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Faster: Meet the Air Force's New Mach 5 SR-72 Spy Plane
National interest ^ | 7/13/2019 | Task and purpose

Posted on 07/17/2019 9:50:59 PM PDT by bitt

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To: Spktyr

Pretty cool. Glad those missiles didn’t go to waste!


61 posted on 07/18/2019 1:04:39 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: SaveFerris

Fortunately, under Trump we are working on new nuclear warheads. The W-87 is ancient; during the Obama Administration, retirees of pensioner age had to be called back in to Pantex to instruct people on how to service and rebuild the W-87s and other warheads. Think about that.


62 posted on 07/18/2019 1:05:46 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: SaveFerris

Correct, they were steam launched. Nitrogen is something you can’t just pull out of your arse on a 10 minute launch warning and you can’t pull it back out of the launch apparatus if it turns out to be a drill.


63 posted on 07/18/2019 1:08:02 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: Spktyr

Yeah, I’ve heard the constant exposure to the warhead degrades components.

I wish I could get called back for IBM (real mainframes) and Midrange (that last mess I was involved in was IBM Sys/36 code running on an AS/400 - one location stuck in the past).

I’m probably one of few guys not yet eligible for Social Security that actually developed software on an IBM Sys/36.

Yes, Ronald Reagan was President. And we never knew about no Bronco Bama. Those were good days.


64 posted on 07/18/2019 1:09:39 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: Spktyr

Heh, I had figured it was some sort of quick-release.

Steam for the Ohio fleet launches too?

(not including the VLS packages (?) on 726-729 SSGN’s.


65 posted on 07/18/2019 1:11:29 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: SaveFerris

“manganese nodules”

I sure seem to recall the article calling them “nitrogen nodules” but hey, that was almost 50 years ago, so....

https://en.wikipedia.org/wiki/Glomar_Explorer


66 posted on 07/18/2019 1:15:57 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: SaveFerris

Several components in the warhead degrade with time by itself, nothing to do with the radiation.

IBM barely has anything to do with stuff like that now other than selling replacement solutions. However, go hang out a shingle on LinkedIn, InDeed, etc., and you might find yourself recruited - there’s more than a few of those left in some strange places in the US (some automakers come immediately to mind) and they’re often looking for people and will pay almost anything to get them.

I recently had to find an “old retired guy” myself to translate a custom program written for an industry consisting of a single company from an odd flavor of pre-ANSI C to something modern so it would run on something that wasn’t 30 years old - had some pointers given to me by a no-longer-active FR member and eventually found the classic old retired guy up in New England. He charged me (well, my client) accordingly.


67 posted on 07/18/2019 1:16:27 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: SaveFerris

https://en.wikipedia.org/wiki/UGM-133_Trident_II

“Before the launch sequence is initiated, the on-board MARK 6 navigation system is activated. The specified mission trajectory is loaded onto the flight computer.[29]

Once the launch command is given, a steam generator system is activated, igniting a fixed solid-grain small rocket motor.[30] The exhaust is fed into cooling water, causing expanding gas within the launch tube to force the missile upward, and out of the submarine.[30] Within seconds, the missile breaches the surface of the water and the first-stage Thrust Vectoring Control (TVC) subsystem ignites. This enables hydraulic actuators attached to the first-stage nozzle. Soon after, the first-stage motor ignites and burns for approximately 65 seconds until the fuel is expended; in addition, an aerospike atop the missile deploys shortly after first-stage ignition to shape airflow. When the first-stage motor ceases operation, the second-stage TVC subsystem ignites. The first-stage motor is then ejected by ordnance within the interstage casing.[31][32] “


68 posted on 07/18/2019 1:18:48 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: Spktyr

Nice. I almost applied for an ARAMCO position, though given my particular circumstances right now, that could turn out good or not-so-good.

The pay was not quite what I expected either. Pretty comparable to U.S. pay for similar work - my problem is that I’ve been out for awhile but it was just an analyst position so being a bit rusty wouldn’t matter much.


69 posted on 07/18/2019 1:19:42 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: Reno89519

Clouds, variable height, and temporal predictability?


70 posted on 07/18/2019 1:22:05 AM PDT by imardmd1 (Fiat Lux)
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To: SaveFerris

Try Ford and GM for positions. Unfortunately, that’s all I can say about that.


71 posted on 07/18/2019 1:25:38 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: Spktyr; null and void

Nice. Yeah, I recall that about the extending aerospike, now that you mention it.

I thought I read that accelerometers (de-celerometers?) trigger the engine to fire as the missile reaches the surface but not really sure about that. Maybe I heard that rumor about the LGM-118A at the peak of the cold launch(?).

Google didn’t like my spelling on the de-cell, heh.

Maybe such a beast does not exist, LOL.

Well, I’m off to bed. Catch your comments tomorrow. Thanks for the discussion.


72 posted on 07/18/2019 1:26:18 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: Spktyr

Yah, my recruiter friends all but abandoned me after the economy crashed. Got one lousy pay gig but it brought in some money (the drive was a killer - almost literally - fell asleep behind the wheel after my regular 12-hour shifts.

Nothing too serious but I could not stay awake a couple times. Really scared me.

Still should have pursued maybe another opportunity post-gig. Would have had to move out there but it might have been doable. Now, it’s all but impossible unless they put me up in a hotel 5 days a week (just tried for another contract gig there). It’s a bit out on the Kansas prairie for me. Not as far as that last (lousy) job but I had hotel arrangements (can’t pull that off without the client making it happen now).


73 posted on 07/18/2019 1:29:51 AM PDT by SaveFerris (Luke 17:28 ... as it was in the days of Lot; they did eat, they drank, they bought, they sold ......)
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To: Spktyr
"the passage of air causes the hull to heat"

I believe the hulls leading edges can be cooled.

74 posted on 07/18/2019 1:34:02 AM PDT by outofsalt (If history teaches us anything, it's that history rarely teaches anything.)
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To: SaveFerris

From what little I can find, yes. The UGM-109’s transport canister is ejected by gas pressure (reasonably sure it’s steam, again), the missile booster fires to propel the missile out of the tube and then out of the water, with the missile discarding protective covers as it clears the surface.


75 posted on 07/18/2019 1:35:24 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: jonascord

“Should be on the air show circuit in a year or two.”

I sincerely doubt it, and I’d rather that the Air Force and Skunk Works keep it under their hats as much as possible, and that if they were to say “If we told you, we’d have to kill you”, they’d be saying it with all sincerity.


76 posted on 07/18/2019 1:37:42 AM PDT by equaviator (There's nothing like the universe to bring you down to earth.)
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To: outofsalt

There are limitations to that, also well known within reason. Given a photo and information on what the hull is made of, engineers in the field will be able to give you a reasonably accurate ballpark on what it’s capable of.

This is nothing new - naval engineers in the London/Washington Naval Treaty era were able to tell who was significantly cheating on the displacement limits by simply looking up the publicly disseminated information, looking at the photos of the questionable ships and realizing that a ship of X ostensible size and Y ostensible displacement would have a freeboard of Z and the pictures weren’t adding up.


77 posted on 07/18/2019 1:41:11 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: SaveFerris

They’re accelerometers, and yes, that’s pretty much how the launch worked from the information I found.

Of course, accelerometers back then cost a ton of money. Now you can get units of better precision and reliability in kids’ toys of under $10. :P


78 posted on 07/18/2019 1:45:49 AM PDT by Spktyr (Overwhelmingly superior firepower and the willingness to use it is the only proven peace solution.)
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To: SuperLuminal

Eliminate all the agencies and bureaus other than the initial four and do NOT fold any of the tasks of the erased agencies into those four.


79 posted on 07/18/2019 1:47:15 AM PDT by arthurus (dfx.,;'5)
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To: equaviator
I never expected to see the SR-71 at the OKC air show, either, yet, lo and behold, there it was, in '88. I even happened to be on I-40 as it came in on final, gear down, on that Friday evening. It was really undershooting the glide path.

Last time I'd seen one was while I was waiting on the first tee at the Kadena AFB golf course, in '72. It was fueling, and leaking, at the end of the runway. Few minutes later, it zipped down the runway, boom, straight up, into the bottom of the cloud deck, and GONE. Probably to Lop Noor, it was not my fate to know...

80 posted on 07/18/2019 1:57:32 AM PDT by jonascord (First rule of the Dunning-Kruger Club is that you do not know you are in the Dunning-Kruger club.)
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