less-known Titan variants

Archibald said:
Attached: two interesting documents related to two peculiar (almost mythical !) rocket engines.
First is: methane-fueled RL10. Second one: LH2-fueled LR87.
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I see at the prhoto from "HISTORY OF THE TITAN LIQUID ROCKET ENGINES AIAA-89-2389" and I have a question.
(I attached this photo in best quality from M. Wade site)
In the "HISTORY..." at the photo we see:
- red: pump;
- orange: pump inlet;
- green: exaust gases tube;
- yellow: manifold.
Under the photo we can read: Double pump engine. But I dont see the fuel (LH2) pump and exaust gases tube. We know, that in LOx/LH2 engine fuel pump bigger, than oxidizer pump. And... Where it?.. May be label is mistake and here we can see the first variant: "Liquid-hydrogen turbopump, a pressure-fed LOX system"? What do you think?
 

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JetPropulsion said:
Under the photo we can read: Double pump engine. But I dont see the fuel (LH2) pump and exaust gases tube. We know, that in LOx/LH2 engine fuel pump bigger, than oxidizer pump. And... Where it?.. May be label is mistake and here we can see the first variant: "Liquid-hydrogen turbopump, a pressure-fed LOX system"? What do you think?
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The LR87 is dual engine with Turbo pump Gasgenerator between the engine (see picture below)
what LH2-fueled LR87 picture show is the Turbo pump Gasgenerator of original engine.
This is the LOX turbopump, now Mark wade expain
In comparison with the Lox/Kerosene LR87, major changes were made on the injectors,
and the RP-1 fuel pump was replaced by a single stage hydrogen pump specially designed for the purpose.
The oxygen pump and its gearbox were unchanged from the original design.
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This Imply the LH2 pump is in Turbo pump Assembly behind the LOX pump
 

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Michel Van said:
The LR87 is dual engine with Turbo pump Gasgenerator between the engine (see picture below)
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You are right. But LR87 - is a two independent engines. Each of these engines has own chamber, turbopump, gas generator, etc.
I attached screen from book "SPACECRAFT LAUNCH VEHICLES" by KOBELEV MILIVANOV, here we can see two different engines.
At the USSR termonology using definition: engin block. Engin block mean "independent engin". Summ of engin block = engin. It avoids confusion.
P. S. If you are interested, I can translate this diagram into English.
 

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publiusr said:
Yes, please.
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Ok. But a little later, now I should go to sleep. :)
publiusr said:
Was China ever interested in perfecting RD-270?
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I don't know. China, of course, is interested in everything. And I think in the '90s they tried to get everything possible. Those were very hungry (sometimes literally! alas, I remember that) years in Russia. But whether China got anything on RD-270/8D420 - I don't know.
 
publiusr said:
Was that suggested for a big orbiter 's ride?
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the Large diameter Titan or Titan IIIL show op in 1960s NRO papers for MOL
USAF look into it to launch space station module and mini shuttle into Orbit
Also study were made to launch Apollo CSM with Titan IIIL to space Station.
then came space shuttle, oddly the Titan IIIL4 was proposed as Booster for Orbiter

here Titan IIIL is rocket 7 and 8 (with Titan IIIM second stage)
pdf736-mol-launchsystems-jpg.642373

Modified Apollo CSM
titaniiil2-jpg.94463

As Booster for Orbiter
h33-titan-gif.85457
 
publiusr said:
While the UA-1207 was real--would it be as wide as a wide-body Barbarian deal? I've seen some odd models of that.
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in 1987 MM proposed LDC Barbarian
FIVE UA-1207 booster
core stage with 5 LR87-AJ11 engines
second stage with one LR87-AJ11
45400 kg into LEO 28.5° deg

Source: Ed Kyle at NASA Space Flight Forum

Picture show the Model
 

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RanulfC said:
Link; UA-1207's did exist, and flew. The wide core Titan did not.
That make sense?

Randy
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Yep. And whatever is in that picture isn't a UA-1207 or a widebody Titan. It's something from Kerbal Space Program. It just happens to have been labelled as something it isn't, but which it vaguely resembles.

The person who made it is literally saying that in the screenshot @Orionblamblam posted.
 
As the person that made the models used in that picture, I may be able to shed some light (I am the author of the Bluedog Design Bureau mod for Kerbal Space Program)

The core tankage is a pastiche of all the "wide body Titan" proposals and is intended to be a serviceable representation of the LDC Titan, Titan Barbarian, and any other of the big Titans. I'm not sure where the 13' core diameter comes from - they are equivalent to ~16' in real life.

I know those are my UA-120 SRBs, but I'm not sure if they're the 7 or 8 segment variants. I can't remember if the top 'segment' counts or if it's considered part of the nose assembly.

@Yellow Palace the parts are meant to be representative of the real thing, letting people build never-flown rockets or even their own ahistorical creations like the one posted above. I'm not sure what you mean but that is absolutely a widebody Titan with UA-120s.
 
CobaltWolf said:
@Yellow Palace the parts are meant to be representative of the real thing, letting people build never-flown rockets or even their own ahistorical creations like the one posted above. I'm not sure what you mean but that is absolutely a widebody Titan with UA-120s.
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Video game artwork then. Thanks for confirming.
 

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