Author Topic: RHYOLITE and newly declassified documents  (Read 19928 times)

Offline Star One

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RHYOLITE and newly declassified documents
« on: 03/28/2015 06:57 pm »
This is worth a look for info on this program.

Quote
Among the CIA's successes described in the documents that make up today's posting was the creation of the RHYOLITE geosynchronous satellite program which allowed continuous coverage of missile telemetry and targets in Eurasia. Agency operatives were also able to tap into radio-telephone communications of Communist leaders as they rode in limousines around Moscow, to track Soviet missile launches from two secret stations inside the Shah's Iran, and to intercept Warsaw Pact communications from a tunnel dug under East Berlin.

http://nsarchive.gwu.edu/NSAEBB/NSAEBB506/

Offline Deesqrd

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Re: RHYOLITE and newly declassified documents
« Reply #1 on: 11/18/2020 12:22 am »
Think I may have found the Rhyolite apogee adjust stage in our collection at the New Mexico Museum of Space History. Made it the subject of a (Mystery) from the Space Vault, our videos about items not on exhibit.

----
Oops. Left out the video URL first time.



« Last Edit: 11/18/2020 02:38 am by Deesqrd »
Dave Dooling
Veteran space writer & educator

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #2 on: 01/13/2021 07:58 pm »
Interesting paper here https://pdfs.semanticscholar.org/bd8e/4a1c601e7213df57f61a6b717d257f6e32cb.pdf
about all the TRW engine variants that used the pintle injector, of which I admit I'd never heard. Says 21 MMBPS units were built if I've read it right.

[Edit: Adding the pdf as an attachment for my and others' convenience.]
« Last Edit: 09/28/2021 05:11 pm by LittleBird »

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #3 on: 09/28/2021 05:42 pm »
Bumping this thread because I think an interesting clue may have been added to what Dave D found last year in a corner of his museum.

The 1968 Leslie Dirks "Blue Book" released to in the latest NRO declassifications i.e. Application of Electro-Optical Technology to Satellite Reconnaissance https://www.nro.gov/Portals/65/documents/foia/declass/MAJOR%20NRO%20PROGRAMS%20&%20PROJECTS/NRO%20EOI/SC-2016-00001_C05098491.pdf refers (page 54) to a multi mission support stage under development at that point by TRW. The description sounds well suited to being the final low thrust injection stage  that Dave was postulating  for the Atlas-Agenas that launched RHYOLITE, see screen grab from his video below, for which the MultiMission Bipropellant Propulsion System (MMBPS) engine would be used. [Edit: actually turns out that the name TRW was  redacted in the document above but not in the other version of same Dirks Blue Book document included in same set, see attached.
At time of posting last year, as pointed out in KH-11 thread by edzieba, the links were:
https://www.nro.gov/Portals/65/documents/foia/declass/MAJOR%20NRO%20PROGRAMS%20&%20PROJECTS/NRO%20EOI/SC-2016-00001_C05096263.pdf
and
https://www.nro.gov/Portals/65/documents/foia/declass/MAJOR%20NRO%20PROGRAMS%20&%20PROJECTS/NRO%20EOI/SC-2016-00001_C05098491.pdf
]


It would then explain why RHYOLITE doesn't have its Agenas listed  as being in GEO in databases like ESA's, as they'd still be in GTO.

It would also make the (currently untestable) prediction that TRW's RHYOLITE was at least partly based on this TRW bus. This wouldn't seem unreasonable to me, insofar as it doesn't seem to have led to anything else that I know of. Athough the early history of Fltsatcom and TDRSS might well be related to it in some way, they used relatively conventional AKMs iirc.

Lockheed's CANYON in contrast seems to have used its Agena stage for its final apogee burn and then to have separated, so there is a tracked separate final stage for each CANYON in the databases.   This doesn't seem unreasonable either, with hindsight, as there is now no reason to suppose these spacecraft were actually very similar.

All of this may of course be wrong, but it seems to be a simple explanation with a little bit of predictive power.
« Last Edit: 05/14/2024 04:03 pm by LittleBird »

Offline Skyrocket

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Re: RHYOLITE and newly declassified documents
« Reply #4 on: 09/29/2021 10:41 am »
Concerning the MultiMission Bipropellant Propulsion System (MMBPS), following document contains a  lot of information in Apendix B (PDF page 134 ff)

https://ntrs.nasa.gov/api/citations/19750012367/downloads/19750012367.pdf

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #5 on: 09/29/2021 03:45 pm »
Concerning the MultiMission Bipropellant Propulsion System (MMBPS), following document contains a  lot of information in Apendix B (PDF page 134 ff)

https://ntrs.nasa.gov/api/citations/19750012367/downloads/19750012367.pdf

Thanks.

[Edit to tidy this as I don't expect to find volume 2 now ;-) : MMBPS certainly seems to have flown, and was one of the 1974 state of the art earth storable systems considered here in a TRW study for NASA Ames on  Shuttle-era planetary stage studies: See https://ntrs.nasa.gov/api/citations/19760007108/downloads/19760007108.pdf for summary volume I and  https://core.ac.uk/download/pdf/42885616.pdf  for vol 3 appendices.
 

I'm not totally clear whether the term "multi mission stage" was a single thing or became a name used for a family of stages.

I guess my question to Gunter, JCM et al is if 21 MMBPS were produced by 2000, how many would have been likely to have flown, and on what ?]
« Last Edit: 10/02/2021 01:56 pm by LittleBird »

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #6 on: 10/27/2021 11:10 am »
What a difference a word makes ...

A while ago I posted in the KH-11/EOI thread, as part of a brief discussion about the interest in 1968-70 in flying the Titan IIIB/Agena from the ETR:

Quote
...  there is a memo https://www.nro.gov/Portals/65/documents/foia/declass/sigintphaseii/SC-2017-00007lll.pdf  from as late as January 1970 where Lew Allen gives his perspective on the Titan IIIC/Transtage vs IIID/Agena, and perhaps surprisingly favours consolidating to the latter, noting that as a by product it would give a IIIB/Agena option at the ITL.

This memo is interesting in all sorts of ways, as it refers to the IIID/Agena which I have seen referred to elsewhere but which never found a mission, and because it appears to be thinking about the IIIB/Agena as a replacement for the Atlas/Agena which was already  being kept on solely for CANYON and RHYOLITE.

It was released as one of the NRO SIGINT batches, and one aspect that really intrigued me was that DNRO Allen was talking in 1970 (see attached) about his concern that "the [redacted] program, scheduled for launch on [redacted] centers, may become the only user of Launch Complex 13, the ATLAS/AGENA, and the associated ground guidance station ". This seemed odd because there were 2 programmes still using the Atlas Agena from ETR, one already flying, CANYON, and one with a first launch coming soon, RHYOLITE.

I wondered what the word centers told us, and whether it was i) a reference to some sort of bus, or ii) a synonym for core as in Titan core for example. Using @libra's suggestion of doing a keyword search at site:nro.gov I discovered that I'd been quite wrong-one meaning of centers was the target interval between launches ! So he is probably, imho, talking about launching CANYON at  "yearly [Edit: or maybe 18-month] centers". But why CANYON not RHYOLITE ? Well we know 7 CANYONS were launched, and were indeed at roughly yearly intervals, while "only" 4 RHYOLITES were launched. If the latter were indeed based on the TRW multimission support stage that Dirks described in 1968, and if this stage indeed had a design life of 3 years, then [Edit 2: if RHYOLITES came in pairs] Allen had to assume that the second and last pair  could have been launched as early as say 1974, neatly explaining how CANYON could be left as the only user of Complex 13 [Edit: In fact it seems RHYOLITE lasted very well, and the last two were only launched in 77-78. I seem to remember speculation that this was to enable the pad to be finally closed. CANYON, meanwhile, according to the late Matthew Aid, was initially very troublesome.]

I may well be overthinking this, but it explains an otherwise puzzling document.

[Edit: Thanks @Jim for confirmation of meaning of centers. I think it was the "on" rather than "at" centers that so confused me. I belatedly note that first redaction is too short for RHYOLITE but ideal for CANYON.]
« Last Edit: 09/23/2022 04:22 am by LittleBird »

Offline Jim

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Re: RHYOLITE and newly declassified documents
« Reply #7 on: 10/27/2021 04:37 pm »

I wondered what the word centers told us, a

It is a standard term referring to launch frequency.

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #8 on: 07/21/2022 06:05 am »
One thing that has always puzzled me is the name AQUACADE, which reportedly replaced RHYOLITE as the project's name in the mid 1970s after the Boyce and Lee spy affair. While it's often said that such names need not mean anything, they nonetheless often seem to, as per discussions in the MOL thread inter alia.

So I was delighted to come across the  Ederle Terrace Cafe  for the refurbished Aquacade at the 1964-65 World's Fair:

https://untappedcities.com/2020/06/23/located-remnants-of-the-aquacade-from-the-1939-worlds-fair/

Sounds like quite  a show:

Quote
The Aquacade was refurbished for the 1964-65 World’s Fair. The guidebook describes the new spectacle: a production by society band leader Meyer Davis and Leon Leonidoff from Radio City on a 75-foot diameter turntable, “one of the largest in the world,” a swimming pool in front of it, and moveable platforms that “shuttled” back and forth over the pool.
« Last Edit: 09/23/2022 05:56 am by LittleBird »

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #9 on: 03/16/2023 11:13 am »
Bumping this thread because I think an interesting clue may have been added to what Dave D found last year in a corner of his museum.

The 1968 Leslie Dirks "Blue Book" released to in the latest NRO declassifications i.e. Application of Electro-Optical Technology to Satellite Reconnaissance https://www.nro.gov/Portals/65/documents/foia/declass/MAJOR%20NRO%20PROGRAMS%20&%20PROJECTS/NRO%20EOI/SC-2016-00001_C05098491.pdf refers (page 54) to a multi mission support stage under development at that point by TRW. The description sounds well suited to being the final low thrust injection stage  that Dave was postulating  for the Atlas-Agenas that launched RHYOLITE, see screen grab from his video below, for which the MultiMission Bipropellant Propulsion System (MMBPS) engine would be used. [Edit: actually turns out that the name TRW was  redacted in the document above but not in the other version of same Dirks Blue Book document included in same set, see attached.
At time of posting last year, as pointed out in KH-11 thread by edzieba, the links were:
https://www.nro.gov/Portals/65/documents/foia/declass/MAJOR%20NRO%20PROGRAMS%20&%20PROJECTS/NRO%20EOI/SC-2016-00001_C05096263.pdf
https://www.nro.gov/Portals/65/documents/foia/declass/MAJOR%20NRO%20PROGRAMS%20&%20PROJECTS/NRO%20EOI/SC-2016-00001_C05098491.pdf
]


It would then explain why RHYOLITE doesn't have its Agenas listed  as being in GEO in databases like ESA's, as they'd still be in GTO.

It would also make the (currently untestable) prediction that TRW's RHYOLITE was at least partly based on this TRW bus. This wouldn't seem unreasonable to me, insofar as it doesn't seem to have led to anything else that I know of. Athough the early history of Fltsatcom and TDRSS might well be related to it in some way, they used relatively conventional AKMs iirc.



Prompted to revisit this by Blackstar's "Roads not Taken" posts in the KH-11 thread. I mentioned the artist's impressions of PYRAMIDER in that thread https://forum.nasaspaceflight.com/index.php?topic=29545.msg2460328#msg2460328

Quote

2. PYRAMIDER, which was a GEO comsat system studied by TRW under contract to CIA or Program B but whih reportedly didn't go ahead-nice line drawings  (one FLTSATCOM-like, one reminiscent of verbal descriptions of RHYOLITE) in the Falcon and the Snowman which could be pure fiction, or be from (Boyce/Lee) trial documents, or have been leaked to the author, who knows;

and have attached pics below (pp 258-9 of US paperback edition of Falcon and the Snowman from mid 80s).

I wonder if the thing at the top of the dish (that looks rather like a nut without a bolt) in the multibeam version might be a descendent of this TRW multimission support stage ? That would of course presuppose that the pics are genuine, and we have of course no special reason to assume they are. [Edit: second grab is a slightly better image, closeup of the bigger pic in the 1979 Simon and Schuster hardback, page 216.]

Other s/c looks very FLTSATCOM-like-by the way, has anyone ever seen an account of the early history of FLTSATCOM ? (first launched in 1978 https://en.wikipedia.org/wiki/Fleet_Satellite_Communications_System ) [Edits: Example images of FLTSATCOM for comparison are 3rd and 4th grabs, I think they are Block I and Block II respectively.]

« Last Edit: 07/17/2024 10:02 am by LittleBird »

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #10 on: 03/17/2023 11:55 am »
Re: the origins of FLTSATCOM.



<snip>
It would also make the (currently untestable) prediction that TRW's RHYOLITE was at least partly based on this TRW bus. This wouldn't seem unreasonable to me, insofar as it doesn't seem to have led to anything else that I know of. Athough the early history of Fltsatcom and TDRSS might well be related to it in some way, they used relatively conventional AKMs iirc.
<snip>


Prompted to revisit this by Blackstar's "Roads not Taken" posts in the KH-11 thread. I mentioned the artist's impressions of PYRAMIDER in that thread https://forum.nasaspaceflight.com/index.php?topic=29545.msg2460328#msg2460328

Quote

2. PYRAMIDER, which was a GEO comsat system studied by TRW under contract to CIA or Program B but whih reportedly didn't go ahead-nice line drawings  (one FLTSATCOM-like, one reminiscent of verbal descriptions of RHYOLITE) in the Falcon and the Snowman which could be pure fiction, or be from (Boyce/Lee) trial documents, or have been leaked to the author, who knows;

and have attached pics below (pp 258-9 of US paperback edition of Falcon and the Snowman from mid 80s).

<snip>

Other s/c looks very FLTSATCOM-like-by the way, has anyone ever seen an account of the early history of FLTSATCOM ? (first launched in 1978 https://en.wikipedia.org/wiki/Fleet_Satellite_Communications_System ) [Edits: Example images are 3rd and 4th grabs, I think they are Block I and Block II respectively.]


Answering my own post I know, but in case anyone else was wondering when FLTSATCOM started, I see it was 1971, i.e. before the dates Lindsey reported for the PYRAMIDER study. There's an excellent short summary at https://www.history.navy.mil/research/library/online-reading-room/title-list-alphabetically/f/from-sea-stars.html
in the superbly comprehehensive history "From The Sea To The Stars":

Quote
In accordance with this MSO recommendation, the Navy submitted its plan to develop UHF tactical communications satellites in 1971. Among all the services, the Navy had been the only one to follow up on the UHF tactical communications demonstrated during the joint experiments with LES-5/6 and TacSat-1 in the 1960s.

On 27 September 1971, the Deputy Secretary of Defense approved the development of the Fleet Satellite Communications (FLTSATCOM) system. The Navy, which had provided the funding and most of the requirements for the UHF system, was designated overall program manager, but the Air Force was assigned to develop the satellites, provide for their launch and on-orbit control, and to develop airborne terminals. The Army was made responsible for the ground terminals and Navy for the shipboard terminals.

The concept proposed by the Navy, which was eventually implemented, was that the FLTSATCOM system would provide communications support to the fleet and other U.S. tactical users worldwide (except for the near-polar regions), by means of four geosynchronous satellites arranged around the earth's equator. A special transmitter/receiver package riding on the FLTSATCOM satellites, called AFSATCOM, would provide communications for Air Force strategic bombers. The solar-powered three-axis-stabilized FLTSATCOM satellites would each weigh a little over a ton and be launched by Atlas-Centaur.

Once the FLTSATCOM concept-definition phase got started, many more potential users began to submit requirements - not only the military services, but also the State Department and White House. The demand for channel capacity grew to the point that the growth in communications payload weight threatened to exceed the booster lift capability. Requirements had to be prioritized and resolved.

[Edit: Looking at last para above, and aware that it's post hoc explanation rather than prediction, I note that by 1973 it wouldn't have been at all surprising if the CIA had joined the queue and then decided to try and get its own GEO comsat(s), with the flown RHYOLITE and contracted FLTSATCOM as the basis.]
« Last Edit: 03/18/2023 05:09 pm by LittleBird »

Offline WallE

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Re: RHYOLITE and newly declassified documents
« Reply #11 on: 03/21/2023 07:46 pm »
I wondered what the word centers told us, and whether it was i) a reference to some sort of bus, or ii) a synonym for core as in Titan core for example. Using @libra's suggestion of doing a keyword search at site:nro.gov I discovered that I'd been quite wrong-one meaning of centers was the target interval between launches ! So he is probably, imho, talking about launching CANYON at  "yearly [Edit: or maybe 18-month] centers". But why CANYON not RHYOLITE ? Well we know 7 CANYONS were launched, and were indeed at roughly yearly intervals, while "only" 4 RHYOLITES were launched. If the latter were indeed based on the TRW multimission support stage that Dirks described in 1968, and if this stage indeed had a design life of 3 years, then [Edit 2: if RHYOLITES came in pairs] Allen had to assume that the second and last pair  could have been launched as early as say 1974, neatly explaining how CANYON could be left as the only user of Complex 13 [Edit: In fact it seems RHYOLITE lasted very well, and the last two were only launched in 77-78. I seem to remember speculation that this was to enable the pad to be finally closed. CANYON, meanwhile, according to the late Matthew Aid, was initially very troublesome.

Yeah it's rather well known by now that CANYON got off to a rough start; the satellites malfunctioned in orbit, one was lost in a launch failure, etc. It's also been mentioned that RHYOLITE used a distinctive long payload shroud to house its antenna, and the Air Force were reluctant to draw attention to it so they didn't publish any decent quality photos of the four RHYOLITE launches. There is a high res photo of a RHYOLITE launch I'd seen but it was a night launch and the shroud is partially hidden in darkness. That must have been the second flight in March '73 as I believe that was the only RHYOLITE launched at night.

The failed CANYON launch in December '71 momentarily delayed Atlas-Centaur AC-26 and its planned Intelsat launch until the Air Force Flight Mishap Review Board determined that it wasn't a fault that would affect the rather different Atlas-Centaur vehicle--CANYON/RHYOLITE used the "long tank" Atlas-Agena and its only civilian use was for OGO-5 in '68.

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #12 on: 03/24/2023 09:40 am »
I wondered what the word centers told us, and whether it was i) a reference to some sort of bus, or ii) a synonym for core as in Titan core for example. Using @libra's suggestion of doing a keyword search at site:nro.gov I discovered that I'd been quite wrong-one meaning of centers was the target interval between launches ! So he is probably, imho, talking about launching CANYON at  "yearly [Edit: or maybe 18-month] centers". But why CANYON not RHYOLITE ? Well we know 7 CANYONS were launched, and were indeed at roughly yearly intervals, while "only" 4 RHYOLITES were launched. If the latter were indeed based on the TRW multimission support stage that Dirks described in 1968, and if this stage indeed had a design life of 3 years, then [Edit 2: if RHYOLITES came in pairs] Allen had to assume that the second and last pair  could have been launched as early as say 1974, neatly explaining how CANYON could be left as the only user of Complex 13 [Edit: In fact it seems RHYOLITE lasted very well, and the last two were only launched in 77-78. I seem to remember speculation that this was to enable the pad to be finally closed. CANYON, meanwhile, according to the late Matthew Aid, was initially very troublesome.

Yeah it's rather well known by now that CANYON got off to a rough start; the satellites malfunctioned in orbit, one was lost in a launch failure, etc. It's also been mentioned that RHYOLITE used a distinctive long payload shroud to house its antenna, and the Air Force were reluctant to draw attention to it so they didn't publish any decent quality photos of the four RHYOLITE launches. There is a high res photo of a RHYOLITE launch I'd seen but it was a night launch and the shroud is partially hidden in darkness. That must have been the second flight in March '73 as I believe that was the only RHYOLITE launched at night.

The failed CANYON launch in December '71 momentarily delayed Atlas-Centaur AC-26 and its planned Intelsat launch until the Air Force Flight Mishap Review Board determined that it wasn't a fault that would affect the rather different Atlas-Centaur vehicle--CANYON/RHYOLITE used the "long tank" Atlas-Agena and its only civilian use was for OGO-5 in '68.

Thanks for that 3 way comparison, I'd seen the rightmost 2 in the superb Nautilus compendium https://nautilus.org/napsnet/napsnet-special-reports/the-sigint-satellites-of-pine-gap-conception-development-and-in-orbit-2/ but didn't recall seeing the OGO launch photo, shows the different shape nicely.

My point in the post though was my puzzlement about the Jan  1970 memo https://www.nro.gov/Portals/65/documents/foia/declass/sigintphaseii/SC-2017-00007lll.pdf from Lew Allen who I think at that point was director of Program A. He writes of his concern that CANYON (redacted word too short to be RHYOLITE, nothing else seems plausible) may become the only user of Pad 13 at CCAFS.  See grab below.

I offered a sort of explanation in the post you've replied to but I don't find it very convincing. So to reiterate,

i) Is he thinking that RHYOLITE will be getting bigger and need a Titan III ?
ii) Is he complaing that Program B aren't keeping him informed ? One could read his comment about "I have no first hand knwoledge of the projected Titan IIIC launch rate"  as being a similar remark about the white USAF.
iii) Or what ?


« Last Edit: 03/24/2023 09:42 am by LittleBird »

Offline edzieba

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Re: RHYOLITE and newly declassified documents
« Reply #13 on: 03/24/2023 10:26 am »
i) Is he thinking that RHYOLITE will be getting bigger and need a Titan III ?
ii) Is he complaing that Program B aren't keeping him informed ? One could read his comment about "I have no first hand knwoledge of the projected Titan IIIC launch rate"  as being a similar remark about the white USAF.
iii) Or what ?
I think (iii) would be: 'If we're the only programme flying Atlas-Agena from that coast, then that programme has to bear both the cost/launch and the entire cost of maintaining launch infrastructure (and transporting stages to that coast, etc). If we can move to Titan-Agena, then we can avoid being burdened with all the other costs of maintaining a launch complex and launch capability due to other users already paying for those anyway'.
i.e. even if cost/launch for Titan-Agena was lower than for Atlas-Agena, actual programme costs to continue operating Atlas-Agena for just CANYON launches could end up being higher than flying on the 'oversized' Titan-Agena.

::EDIT:: Currected by Jim. Right letter, wrong vehicle!
« Last Edit: 03/24/2023 11:19 am by edzieba »

Offline Jim

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Re: RHYOLITE and newly declassified documents
« Reply #14 on: 03/24/2023 11:05 am »
i) Is he thinking that RHYOLITE will be getting bigger and need a Titan III ?
ii) Is he complaing that Program B aren't keeping him informed ? One could read his comment about "I have no first hand knwoledge of the projected Titan IIIC launch rate"  as being a similar remark about the white USAF.
iii) Or what ?
I think (iii) would be: 'If we're the only programme flying Atlas-Agena from that coast, then that programme has to bear both the cost/launch and the entire cost of maintaining launch infrastructure (and transporting stages to that coast, etc). If we can move to Thor-Agena, then we can avoid being burdened with all the other costs of maintaining a launch complex and launch capability due to other users already paying for those anyway'.
i.e. even if cost/launch for Thor-Agena was lower than for Atlas-Agena, actual programme costs to continue operating Atlas-Agena for just CANYON launches could end up being higher than flying on the 'oversized' Thor-Agena.

Titan Agena

Offline WallE

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Re: RHYOLITE and newly declassified documents
« Reply #15 on: 03/24/2023 03:08 pm »
Thanks for that 3 way comparison, I'd seen the rightmost 2 in the superb Nautilus compendium https://nautilus.org/napsnet/napsnet-special-reports/the-sigint-satellites-of-pine-gap-conception-development-and-in-orbit-2/ but didn't recall seeing the OGO launch photo, shows the different shape nicely.

I had seen another photo of OGO-5's booster undergoing prelaunch inspection prior to being erected on LC-13 but I can't find it now. The postflight report is on NTRS and reveals an entirely uneventful launch.

The CANYON 4 failure from my understanding was similar in nature to Mariner 1 in involving a guidance system malfunction and RSO destruct during sustainer phase. This would explain why it was deemed to have no effect on AC-26, as that used an inertial guidance system instead of the radio ground guidance on Atlas-Agena.

Offline LittleBird

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Re: RHYOLITE and newly declassified documents
« Reply #16 on: 03/24/2023 04:04 pm »
i) Is he thinking that RHYOLITE will be getting bigger and need a Titan III ?
ii) Is he complaing that Program B aren't keeping him informed ? One could read his comment about "I have no first hand knwoledge of the projected Titan IIIC launch rate"  as being a similar remark about the white USAF.
iii) Or what ?
I think (iii) would be: 'If we're the only programme flying Atlas-Agena from that coast, then that programme has to bear both the cost/launch and the entire cost of maintaining launch infrastructure (and transporting stages to that coast, etc). If we can move to Titan-Agena, then we can avoid being burdened with all the other costs of maintaining a launch complex and launch capability due to other users already paying for those anyway'.
i.e. even if cost/launch for Titan-Agena was lower than for Atlas-Agena, actual programme costs to continue operating Atlas-Agena for just CANYON launches could end up being higher than flying on the 'oversized' Titan-Agena.

::EDIT:: Currected by Jim. Right letter, wrong vehicle!

Indeed, and nicely summarised. And I think this was after the other cost-sharing possibility, flying Intelsat IV on Titan 3B, had been abandoned.

However, *why* in Jan 1970 *before RHYOLITE had even flown* was he worried that CANYON might become the only tenant at LC13 in the foreseeable future ?
« Last Edit: 03/25/2023 02:38 pm by LittleBird »

Offline WallE

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Re: RHYOLITE and newly declassified documents
« Reply #17 on: 03/24/2023 04:33 pm »
Indeed, and nicely summarised. And I think this was after the other cost-sharing possibility, flying Intelsat IV on Titan 3B, had been abandoned.

Titan was an Air Force vehicle and NASA preferred to use Atlas-Centaur as it was entirely under their control. Also the only Titan 3B pad was SLC-4W at VAFB which was quite busy with GAMBIT and JUMPSEAT launches.

Offline Jim

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Re: RHYOLITE and newly declassified documents
« Reply #18 on: 03/24/2023 05:14 pm »
Also the only Titan 3B pad was SLC-4W at VAFB which was quite busy with GAMBIT and JUMPSEAT launches.

It could have used the ITL

Offline WallE

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Re: RHYOLITE and newly declassified documents
« Reply #19 on: 03/24/2023 06:42 pm »
Hmm well at VAFB they had two separate pads, SLC-3W for Titan 3B and SLC-3E for SRB-equipped Titans. Though in that case the launch schedules would have been too busy for just a single pad to handle. The Cape had two Titan pads both for SRB Titans and while one of those was fairly busy during the '70s with Titan 3C launches the other was only used for Titan-Centaur planetary probes.

I'm not sure what this proposed Titan 3B Intelsat would have entailed. I take it it would use the Centaur in which case for all practical purposes it's just a Titan 3E without SRBs and be able to use the existing infrastructure at LC-41. But I'm not really sure. In any event as previous point about how NASA would rather use a booster they had complete ownership of.

NASA made one use of Titan 3C, incidentally, when it was used to launched ATS-6 in May '74.
« Last Edit: 03/24/2023 06:49 pm by WallE »

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