Really Top Secret Projects (Ben Rich remark to Jim Goodall)

As I recall in the 1980s there was a Lockheed press release in the Los Angeles Times regarding having "Flown a manned aircraft at over 3000mph." The story was picked up by Aviation Week where I read it.

Perhaps someone with access to the AW&ST archives can do a search and find that?
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.
 
Don’t the demonstrators usually get buried in the desert and never seen in public.

The Tacit Blue stealth demonstrator on the other hand was declassified and is on display in a museum now.
There were people advocating for its preservation and declassification from the end of the test program forward. That does not happen often
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Why would it ever be? It could have technology very advanced they don't want revealed that might not make it into a production article. I'm sure the desert is the burial yard for many unknown secret test articles.
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Why would it ever be? It could have technology very advanced they don't want revealed that might not make it into a production article. I'm sure the desert is the burial yard for many unknown secret test articles.
That’s where the sub-scale B-2 demonstrator is meant to be.
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.
Not necessarily. Both Have Blues were buried after crashes, but the Tacit Blue and Bird of Prey are both at the USAFM. Scaled Composites ARES/Model 151, meanwhile, is still flying in support of an unknown number of clandestine programs.
 
Don’t the demonstrators usually get buried in the desert and never seen in public.

The Tacit Blue stealth demonstrator on the other hand was declassified and is on display in a museum now.
There were people advocating for its preservation and declassification from the end of the test program forward. That does not happen often
It should happen with all the cool toys.
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.
There was never a small scale Flight test vehicle for the B2. The closest thing was a full scale mockup for the Navy ATA, which of course, was cancelled by Northrop/Grumman. The only thing buried in the desert in modern history is the Have Blue prototypes, after accidents.
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.
There was never a small scale Flight test vehicle for the B2. The closest thing was a full scale mockup for the Navy ATA, which of course, was cancelled by Northrop/Grumman. The only thing buried in the desert in modern history is the Have Blue prototypes, after accidents.
This is true.
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.
There was never a small scale Flight test vehicle for the B2. The closest thing was a full scale mockup for the Navy ATA, which of course, was cancelled by Northrop/Grumman. The only thing buried in the desert in modern history is the Have Blue prototypes, after accidents.
Depends on what you define as modern history. If that encompasses the 60s and 70s, you are wrong.
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.
There was never a small scale Flight test vehicle for the B2. The closest thing was a full scale mockup for the Navy ATA, which of course, was cancelled by Northrop/Grumman. The only thing buried in the desert in modern history is the Have Blue prototypes, after accidents.
And that belief I have seen challenged a number of times, and that there was indeed a sub scale B-2 demonstrator.
 
And that belief I have seen challenged a number of times, and that there was indeed a sub scale B-2 demonstrator.
Prove it. I can tell you I was there at the start of the ATB/Senior CJ/AP-10/B2. worked there until the mid 90's. I also worked ATA, ATF, etc. There was no demonstrator of any kind. Just Tacit Blue, which was my first. So I don't know who is feeding you your misinformation, so present your evidence please.
 
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And that belief I have seen challenged a number of times, and that there was indeed a sub scale B-2 demonstrator.
Prove it. I can tell you I was there at the start of the ATB/Senior CJ/AP-10/B2. worked there until the mid 90's. I also worked ATA, ATF, etc. There was no demonstrator of any kind. Just Tacit Blue, which was my first. So I don't know who is feeding you your misinformation, so present your evidence please.
Considering these projects are compartmentalised would anyone from one program know what was going on with another.
 
So "B-2 demonstrator" was compartmentalised from ATB/Senior CeeJay? Are you serious?
 
And that belief I have seen challenged a number of times, and that there was indeed a sub scale B-2 demonstrator.
Prove it. I can tell you I was there at the start of the ATB/Senior CJ/AP-10/B2. worked there until the mid 90's. I also worked ATA, ATF, etc. There was no demonstrator of any kind. Just Tacit Blue, which was my first. So I don't know who is feeding you your misinformation, so present your evidence please.
Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.
 
Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.

Man, you guys are just making me jealous. I would have loved to work at NGC ASD.
 
And that belief I have seen challenged a number of times, and that there was indeed a sub scale B-2 demonstrator.
Prove it. I can tell you I was there at the start of the ATB/Senior CJ/AP-10/B2. worked there until the mid 90's. I also worked ATA, ATF, etc. There was no demonstrator of any kind. Just Tacit Blue, which was my first. So I don't know who is feeding you your misinformation, so present your evidence please.
Considering these projects are compartmentalised would anyone from one program know what was going on with another.

You have a point as visit to Skunk Works by my old colleague Steven Trimble when he ran DEW LIne section of Flightglobal, he went on visit (by invite only) in 2008 to see the USAF AFMC Advanced Composite Aircraft (based on Dornier 328). It was in an compartmentalised empty space in large hangar, with a dividing wall where Steven saw the top of the P-791 in the gap and asked if that was it to his hosts and escorts. They laughed and said they could tell but have to kill him afterwards in a joking manner.

He pointed out that there was wee white noise of buzzing in the corridors between project offices so that peeps in office could not eavesdrop or accidentally say loudly what they were working on.

Anyhow here is extract of a recent visit last year to new facilities, hes speaking to another former colleague Guy Norris in podcast.


cheers
 
Are there any indications from the USAF as to when their secretly built NGAD demonstrator prototype (Designed and built in just a year IIRC) is going to be publicly unveiled?
Don’t the demonstrators usually get buried in the desert and never seen in public. That’s what’s meant to have happened to the alleged smaller scale B-2 demonstrator.

Thats true as reading my book on F-117 Nighthawk World Airpower special 1993 - there is a couple of lines at the beginning when on about security for Have Blue etc where mention of an unmanned demonstrator used and abused, then broken up and buried in the Nevada desert.

cheers
 
Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.

Man, you guys are just making me jealous. I would have loved to work at NGC ASD.
I started at ASD-Pico in '86 working to design and build the full-scale flight controls/hydro iron bird test rig (the FCHIL), my first project. By the late '90s when I left NGC, not much going on in the way of new programs, all B-2 went to Palmdale then eventually ASD-Pico closed and was demolished unfortunately.
 
Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.

Man, you guys are just making me jealous. I would have loved to work at NGC ASD.
I started at ASD-Pico in '86 working to design and build the full-scale flight controls/hydro iron bird test rig (the FCHIL), my first project. By the late '90s when I left NGC, not much going on in the way of new programs, all B-2 went to Palmdale then eventually ASD-Pico closed and was demolished unfortunately.
You and I have crossed paths numerous times. I won't go into too much detail on a public forum, but here's a snapshot, and I won't go into too much detail as some of this I would imagine is still sensitive. In early 1981, I left the USAF, as a weapons system specialist. Main bird was the F111D at CAFB. I went to MD in Long Beach on DC9, MD80, KC10. Being a new hire, I was laid off during contract/union disputes. A friend suggested I go apply at Northrop. I was hired,went through security, since I still had my clearance active from the USAF, they snatched me up at 23 years old. I worked Wind tunnel instrumentation at the Tunnel complex at Aircraft division / Advanced projects. My first program was Tacit Blue which only a hand full of us were cleared for. ATB/B2 was next, along with other "Poverty programs/studies". ATF, and ATA, and some other things. When Pico started it's buildup I was drafted and made the move. When the design was mostly frozen, I was bumped back into my avionics background and took over the Lead tech role in the Avionics lab across the hall from the FCHIL lab. I also integrated the two, allowing the AIL to "Run" the FCHIL bird. I also ran at that time several other "labs" that I won't mention on the forum. Northrop had it's fingers in many areas at Pico. After the 21 bird cut, things were getting tight, the plan was to cut the Lab in two, part going to Palmdale, the other to OK. I was burnt out, and I was building Ultralights and experimental aircraft on the side as a hobby, so I took a voluntary layoff which gave me full benefits while I got my instructors ratings, and went into that field full time. I quickly moved out of CA and set up shop. Been a hell of a ride. I just retired after a 10 year bout with cancer. I'm still standing, just a bit wobbly.
 
"so advanced that they would keep something classified for 25+ years? "

Perhaps just the sheer amount of taxpayers money, wasted for a project,
that fall through completely ? ;D
What could have been soooo secret that It remained classified for 40 years?

In 1986 I was doing a short stint in the tech pubs section of MAG-13 at MCAS El Toro, Ca. -because I had a secret clearance due to working on the A-6E FLIR system.

One day they handed me a package marked "Confidential" - it contained a few pages with text changes for incorporation in the appropriate manual. I initialed the custody form, and went to the work center indicated, pulled the pub listed, and looked at the cover sheet.

It was the maintenance pub for the radar-altimeter currently used on the KC-130H.

The first page was dated 1946, and described the system as being installed in B-17s, B-24s, and C-47s!
 
"so advanced that they would keep something classified for 25+ years? "

Perhaps just the sheer amount of taxpayers money, wasted for a project,
that fall through completely ? ;D
What could have been soooo secret that It remained classified for 40 years?

In 1986 I was doing a short stint in the tech pubs section of MAG-13 at MCAS El Toro, Ca. -because I had a secret clearance due to working on the A-6E FLIR system.

One day they handed me a package marked "Confidential" - it contained a few pages with text changes for incorporation in the appropriate manual. I initialed the custody form, and went to the work center indicated, pulled the pub listed, and looked at the cover sheet.

It was the maintenance pub for the radar-altimeter currently used on the KC-130H.

The first page was dated 1946, and described the system as being installed in B-17s, B-24s, and C-47s!
There is no automatic declassification review, a fact which many enthusiasts forget. If something is marked SECRET, it will always remain that way until:
  1. Someone decides to review its classification
  2. A reviewer is found with the right security clearance and subject knowledge to actually review it
  3. That reviewer determines that it can be declassified
There are surely huge numbers of documents for which Step 1 can't happen, either because researchers don't know to request them or because the document owner doesn't have the time or inclination to consider requests. Step 2 is no small problem either, especially for more esoteric subjects. The people who might be qualified reviewers are likely to be very busy with more important things than (say) declassifying a radar altimeter manual from 1946.

It's only at Point 3 in the process that the element of 'this is still something we want to keep secret' comes into it.
 
And that belief I have seen challenged a number of times, and that there was indeed a sub scale B-2 demonstrator.
Prove it. I can tell you I was there at the start of the ATB/Senior CJ/AP-10/B2. worked there until the mid 90's. I also worked ATA, ATF, etc. There was no demonstrator of any kind. Just Tacit Blue, which was my first. So I don't know who is feeding you your misinformation, so present your evidence please.
Considering these projects are compartmentalised would anyone from one program know what was going on with another.

I think this misconception comes from before Tacit Blue (or even B-2) was unveiled.

Jane's All The World's Aircraft 1987-88

NORTHROP ATB

During October 1981, it was reported that contracts totalling $7,300 million had been awarded to Northrop, to develop and build prototypes of an advanced technology (‘stealth’) bomber (ATB) to take over the B-lB’s penetration role during the final years of this century. No details are available officially, except that Northrop, as prime contractor, is being assisted by Boeing Aerospace, LTV (Vought) and General Electric Engine Group. However, the ATB has a flying-wing configuration, is expected to be smaller than the B-1B, and was reported to be scheduled to make its first flight in November 1987. Indications in mid-1986 were that the ATB would have four (F101?) engines, and a gross weight in the region of 158,760-170,100 kg (350,000-375,000 lb). In early 1986 Norlhrop’s Advanced Systems Division at Pico Rivera, California, had completed a full scale engineering mockup of the ATB. A scaled proof of concept vehicle is believed to have been flying since 1982. Subject to satisfactory flight testing, the USAF plans to acquire 132 ATBs in a $36,600 million programme, with first deliveries to Whiteman AFB, Missouri, in the early 1990s.

Tacit Blue served as the "proof of concept" for Northrop's ATB. TACIT BLUE did indeed first fly in 1982.

The Northrop "Shamu" name was in the public domain before TACIT BLUE declassification in 1996 - I've seen a reference in Popular Mechanics 1994 for example.
 
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Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.

Man, you guys are just making me jealous. I would have loved to work at NGC ASD.
I started at ASD-Pico in '86 working to design and build the full-scale flight controls/hydro iron bird test rig (the FCHIL), my first project. By the late '90s when I left NGC, not much going on in the way of new programs, all B-2 went to Palmdale then eventually ASD-Pico closed and was demolished unfortunately.
You and I have crossed paths numerous times. I won't go into too much detail on a public forum, but here's a snapshot, and I won't go into too much detail as some of this I would imagine is still sensitive. In early 1981, I left the USAF, as a weapons system specialist. Main bird was the F111D at CAFB. I went to MD in Long Beach on DC9, MD80, KC10. Being a new hire, I was laid off during contract/union disputes. A friend suggested I go apply at Northrop. I was hired,went through security, since I still had my clearance active from the USAF, they snatched me up at 23 years old. I worked Wind tunnel instrumentation at the Tunnel complex at Aircraft division / Advanced projects. My first program was Tacit Blue which only a hand full of us were cleared for. ATB/B2 was next, along with other "Poverty programs/studies". ATF, and ATA, and some other things. When Pico started it's buildup I was drafted and made the move. When the design was mostly frozen, I was bumped back into my avionics background and took over the Lead tech role in the Avionics lab across the hall from the FCHIL lab. I also integrated the two, allowing the AIL to "Run" the FCHIL bird. I also ran at that time several other "labs" that I won't mention on the forum. Northrop had it's fingers in many areas at Pico. After the 21 bird cut, things were getting tight, the plan was to cut the Lab in two, part going to Palmdale, the other to OK. I was burnt out, and I was building Ultralights and experimental aircraft on the side as a hobby, so I took a voluntary layoff which gave me full benefits while I got my instructors ratings, and went into that field full time. I quickly moved out of CA and set up shop. Been a hell of a ride. I just retired after a 10 year bout with cancer. I'm still standing, just a bit wobbly.
Glad you are doing well and recovering and yes, you and I have probably crossed paths many, many times. I ended my NGC stint in B-2 flight test with the CTF. Since NGC, I have performed subsystems engineering development work for DARPA RASCAL, Stratolaunch (carrier aircraft) and more recently the 5GAT drone just to name a few, not retired yet, still having fun working some new things including aerial refueling.
 
Cancer is hell. My two parents got it in close succession. Dad passed away in 2009 from treatments secondary effects, Mom was shocked and got cancer the next year, but survived. 2009-2011 was complete hell. You have my sympathies, and I'm glad you triumphed from that criminal illness.
 
What could have been soooo secret that It remained classified for 40 years?

In 1986 I was doing a short stint in the tech pubs section of MAG-13 at MCAS El Toro, Ca. -because I had a secret clearance due to working on the A-6E FLIR system.

One day they handed me a package marked "Confidential" - it contained a few pages with text changes for incorporation in the appropriate manual. I initialed the custody form, and went to the work center indicated, pulled the pub listed, and looked at the cover sheet.

It was the maintenance pub for the radar-altimeter currently used on the KC-130H.

The first page was dated 1946, and described the system as being installed in B-17s, B-24s, and C-47s!

The research I'm doing for my book is mostly from the seventies and isn't even mainly stealth related. There may be some stealth tech in the designs, but they're mostly conventional designs and so far most of the papers I've asked to be declassified have had the aircraft configurations redacted. I think a lot of it is the people reviewing them don't really know what is already in the public domain and, as such, I think they tend to be conservative in what they release as they don't want to be the one to let something out that shouldn't have been in the public domain. I understand it, but it's kind of annoying for tech that is fifty years old.
 
The impression I had was that it was a case of the Rad-Alt having been specified for the C-130A in the mid-1950s, when it was still close to "state-of-the-art", and with newer systems not being much better for a transport and thus not justifying its replacement, that inertia set in, and it would remain classified as long as it was in military use.

Unless the C-130J/KC-130J uses a different rad-alt, it is likely still classified... if for no other reason than to reduce the chance of someone developing equipment that could make it think the aircraft is higher than it is... leading to "controlled flight into terrain" situations, etc.
 
More speculation:
The technology-demonstration phase of the programme may have included the airborne testing of a scaled-down prototype. Probably built to 1/2 scale and powered by four non-afterburning F404s, this would provide RCS data, information on stability and control of such an unconventional shape. Most sources agree that it flew sometime in 1982.

It is possible that this trials aircraft was rebuilt in the mid-1980s to become more representative of the proposed production configuration. One source told me in the spring of 1988 that the sub-scale aircraft had been flying for about 15 months, a date in complete disagreement with earlier accounts and which (if true) could only be explained by either a rebuilt, or even an all- new second test aircraft.
Doug Richardson, Stealth (1989)
 
Given those bizarre 'ring-donut' ship tracks off US West coast. and the pre-Ukraine hilarity when Rus complained visiting RN warship was trespassing in Rus waters while it was actually, visibly quay-side else-where, there are too many possible hacks for comfort....

Also, the recent FAA kerfuffle over 5G 'leakage', where it seems too many civil radar altimeters had 'legacy' designs with inadequately constrained band-width of front-ends that could prove vulnerable to interference...

Speaking of low-flying oopsies, we may have a geomagnetic whatsit incoming.
CHANCE OF EARTH-DIRECTED FLARES: Growing sunspot AR3068 has developed a 'beta-gamma' magnetic field that harbors energy for M-class solar flares. Any explosions today will be geoeffective because the sunspot is almost directly facing Earth.
 
More speculation:
The technology-demonstration phase of the programme may have included the airborne testing of a scaled-down prototype. Probably built to 1/2 scale and powered by four non-afterburning F404s, this would provide RCS data, information on stability and control of such an unconventional shape. Most sources agree that it flew sometime in 1982.

It is possible that this trials aircraft was rebuilt in the mid-1980s to become more representative of the proposed production configuration. One source told me in the spring of 1988 that the sub-scale aircraft had been flying for about 15 months, a date in complete disagreement with earlier accounts and which (if true) could only be explained by either a rebuilt, or even an all- new second test aircraft.
Doug Richardson, Stealth (1989)

A half size B-2 with 4*F404s ?
 
Unless the C-130J/KC-130J uses a different rad-alt, it is likely still classified... if for no other reason than to reduce the chance of someone developing equipment that could make it think the aircraft is higher than it is... leading to "controlled flight into terrain" situations, etc.

I think it differs.

See the set that is standard today:

https://extantaerospace.com › ...PDF
AN/APN-232 Combined Altitude Radar Altimeter Receiver Transmitter (CARA RT ...
 

Attachments

  • 7023_CARA-Mil.pdf
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Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.

Man, you guys are just making me jealous. I would have loved to work at NGC ASD.
I started at ASD-Pico in '86 working to design and build the full-scale flight controls/hydro iron bird test rig (the FCHIL), my first project. By the late '90s when I left NGC, not much going on in the way of new programs, all B-2 went to Palmdale then eventually ASD-Pico closed and was demolished unfortunately.
You and I have crossed paths numerous times. I won't go into too much detail on a public forum, but here's a snapshot, and I won't go into too much detail as some of this I would imagine is still sensitive. In early 1981, I left the USAF, as a weapons system specialist. Main bird was the F111D at CAFB. I went to MD in Long Beach on DC9, MD80, KC10. Being a new hire, I was laid off during contract/union disputes. A friend suggested I go apply at Northrop. I was hired,went through security, since I still had my clearance active from the USAF, they snatched me up at 23 years old. I worked Wind tunnel instrumentation at the Tunnel complex at Aircraft division / Advanced projects. My first program was Tacit Blue which only a hand full of us were cleared for. ATB/B2 was next, along with other "Poverty programs/studies". ATF, and ATA, and some other things. When Pico started it's buildup I was drafted and made the move. When the design was mostly frozen, I was bumped back into my avionics background and took over the Lead tech role in the Avionics lab across the hall from the FCHIL lab. I also integrated the two, allowing the AIL to "Run" the FCHIL bird. I also ran at that time several other "labs" that I won't mention on the forum. Northrop had it's fingers in many areas at Pico. After the 21 bird cut, things were getting tight, the plan was to cut the Lab in two, part going to Palmdale, the other to OK. I was burnt out, and I was building Ultralights and experimental aircraft on the side as a hobby, so I took a voluntary layoff which gave me full benefits while I got my instructors ratings, and went into that field full time. I quickly moved out of CA and set up shop. Been a hell of a ride. I just retired after a 10 year bout with cancer. I'm still standing, just a bit wobbly.
No doubt you know my Father, who also worked in the wind tunnel shop on Tacit Blue, ATF and ATA. Not gonna say his name, but he also went on to do a bunch of RCS stuff on the B-2 (not at Pico) and YF-23. Heck you might even know me too, I was doing ATF and TSSAM RCS stuff back then.

Small world indeed..
 
Cancerman, I worked these programs as well and you are correct in your statements and info regarding B-2, ATA and ATF. I left NGC in the late -90's. I started NGC at ASD-Pico.

Man, you guys are just making me jealous. I would have loved to work at NGC ASD.
I started at ASD-Pico in '86 working to design and build the full-scale flight controls/hydro iron bird test rig (the FCHIL), my first project. By the late '90s when I left NGC, not much going on in the way of new programs, all B-2 went to Palmdale then eventually ASD-Pico closed and was demolished unfortunately.
You and I have crossed paths numerous times. I won't go into too much detail on a public forum, but here's a snapshot, and I won't go into too much detail as some of this I would imagine is still sensitive. In early 1981, I left the USAF, as a weapons system specialist. Main bird was the F111D at CAFB. I went to MD in Long Beach on DC9, MD80, KC10. Being a new hire, I was laid off during contract/union disputes. A friend suggested I go apply at Northrop. I was hired,went through security, since I still had my clearance active from the USAF, they snatched me up at 23 years old. I worked Wind tunnel instrumentation at the Tunnel complex at Aircraft division / Advanced projects. My first program was Tacit Blue which only a hand full of us were cleared for. ATB/B2 was next, along with other "Poverty programs/studies". ATF, and ATA, and some other things. When Pico started it's buildup I was drafted and made the move. When the design was mostly frozen, I was bumped back into my avionics background and took over the Lead tech role in the Avionics lab across the hall from the FCHIL lab. I also integrated the two, allowing the AIL to "Run" the FCHIL bird. I also ran at that time several other "labs" that I won't mention on the forum. Northrop had it's fingers in many areas at Pico. After the 21 bird cut, things were getting tight, the plan was to cut the Lab in two, part going to Palmdale, the other to OK. I was burnt out, and I was building Ultralights and experimental aircraft on the side as a hobby, so I took a voluntary layoff which gave me full benefits while I got my instructors ratings, and went into that field full time. I quickly moved out of CA and set up shop. Been a hell of a ride. I just retired after a 10 year bout with cancer. I'm still standing, just a bit wobbly.
No doubt you know my Father, who also worked in the wind tunnel shop on Tacit Blue, ATF and ATA. Not gonna say his name, but he also went on to do a bunch of RCS stuff on the B-2 (not at Pico) and YF-23. Heck you might even know me too, I was doing ATF and TSSAM RCS stuff back then.

Small world indeed..
I probably did and may have known you as well. I knew quite a few folks in the wind tunnel model shop. I was involved in YF-23 (aircraft support as required and iron bird lab) and TSSAM (B-2 integration at CTF). I remember planning for the ATA iron bird, would have been fun. I have run into some old NGC colleagues but far and few between now, it is a small world.
 
Unless the C-130J/KC-130J uses a different rad-alt, it is likely still classified... if for no other reason than to reduce the chance of someone developing equipment that could make it think the aircraft is higher than it is... leading to "controlled flight into terrain" situations, etc.

I think it differs.

See the set that is standard today:

https://extantaerospace.com › ...PDF
AN/APN-232 Combined Altitude Radar Altimeter Receiver Transmitter (CARA RT ...
That set took its first test flight in 1983... and was intended to replace most older rad-alts then in use, so yes, I'd say that that old rad-alt is long out of US military service.

1983 - 38 = 1945, fits the one I mentioned above.

https://www.secretprojects.co.uk/th...-projects-ben-rich-remark-to-jim-goodall.352/

March 2, 1983: Combined Altitude Radar Altimeter Begins Testing
EDWARDS AIR FORCE BASE, Calif --

The F-16 Combined Test Force conducted the first flight of the APN-232 Combined Altitude Radar Altimeter (CARA) system. The CARA was a major Block 25B upgrade for the F-16C/D Multinational Staged Improvement Program (MSIP).

The CARA was developed under an Air Force contract as a replacement for 13 different types of radar altimeters in the Air Force inventory. These 13 types of radar altimeters range in age from seven to 38 years and in the mean time between failures from 39 to 570 hours.

https://www.globalsecurity.org/military/systems/aircraft/systems/an-apn-232.htm
The AN/APN-232 CARA (Combined Altitude Radar Altimeter) is the standard US Air Force Radar Altimeter, used in C-5, C-17, C-130, OC-135, C-141, F-111, F-15, F-16, MH-53, T-43 and UH-1N aircraft.

The above is obviously an old entry, noting some of the aircraft listed (C-141, F-111 frex).
 

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