Author Topic: As Centaur turns 60 years old, ULA prepares to evolve Centaur V  (Read 7142 times)

Online Chris Bergin

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Online TrevorMonty

Great article.

Thought you might of included LCROSS mission as it was one of more interesting things Centaur was used for.

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« Last Edit: 05/09/2022 02:47 pm by TrevorMonty »

Offline Vahe231991

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The Centaur V to be used for the Vulcan rocket incorporates elements of the proposed but canceled Advanced Cryogenic Evolved Stage, namely a diameter of 18 feet (5.4 meters) and advanced insulation, in case anyone's aware.

Offline Jim

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The Centaur V to be used for the Vulcan rocket incorporates elements of the proposed but canceled Advanced Cryogenic Evolved Stage, namely a diameter of 18 feet (5.4 meters) and advanced insulation, in case anyone's aware.


It wasn't cancelled if it was only proposed.

And no, the diameter is not from ACES but from the fairing.    And the insulation is the same as previous versions.

Offline FutureSpaceTourist

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https://twitter.com/torybruno/status/1593643134444924928

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Thought you guys might like this, from a few weeks ago. The Centaur V Structural Test Article being placed in the stand for testing at @NASA_Marshall to continue collecting data of the upper stage for #VulcanRocket

Offline edzieba

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The Centaur V to be used for the Vulcan rocket incorporates elements of the proposed but canceled Advanced Cryogenic Evolved Stage, namely a diameter of 18 feet (5.4 meters) and advanced insulation, in case anyone's aware.


It wasn't cancelled if it was only proposed.

And no, the diameter is not from ACES but from the fairing.    And the insulation is the same as previous versions.
It was more than just a paper proposal: serious work went into IVF, including working prototypes of the hydrox ICE (and the hydrox thrusters, which are now beyond prototype and slated for Centaur V).

Offline spacenut

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I asked this somewhere else, but could Centaur V use one BE-3U instead of the AR-10's.  Maybe it would burn too much fuel for GSO or deep space launches, but might make for a good LEO payload. 

Offline warp99

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I asked this somewhere else, but could Centaur V use one BE-3U instead of the AR-10's.  Maybe it would burn too much fuel for GSO or deep space launches, but might make for a good LEO payload.
Yes around three times the thrust of a pair of RL-10CX at the cost of a lower Isp would be perfect for LEO operations. 

ULA originally was looking at three different hydrolox engines including the BE-3U before they settled on the RL-10CX and the lower Isp for high energy mission profiles was probably what counted against the BE-3U

Offline baldusi

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Rockets are not Lego Bricks (tm). You can't casually swap engines, even when they have the same propellants. Things like spin up and TVC fluids, interfaces, propellant line clocking, ECU, control bus, avionics, etc. make it practically a new stage. LEO optimized is probably a 4 RL-10 version with structural reinforcements.

Offline FutureSpaceTourist

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twitter.com/archipeppe/status/1626164140082438145

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Tory, which differences are between the Centaur III and the brand new Centaur V?
Thanks in advance...

https://twitter.com/torybruno/status/1626177057091645444

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2.5x energy.  450x endurance. 1/10 the welds. Robotic manufacturing

twitter.com/singularityg3/status/1626177598220042242

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Woah, 2.5x more energy? Like specific impulse? wow,,,,

https://twitter.com/torybruno/status/1626177895164182528

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Prop load

Online TrevorMonty

twitter.com/archipeppe/status/1626164140082438145

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Tory, which differences are between the Centaur III and the brand new Centaur V?
Thanks in advance...

https://twitter.com/torybruno/status/1626177057091645444

Quote
2.5x energy.  450x endurance. 1/10 the welds. Robotic manufacturing

twitter.com/singularityg3/status/1626177598220042242

Quote
Woah, 2.5x more energy? Like specific impulse? wow,,,,

https://twitter.com/torybruno/status/1626177895164182528

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Prop load
50t vs 20t of fuel. Current Centuar wasn't optimum size for Atlas V but neither LM or later ULA were willing to pay for development of new larger version. There is also policy "if it ain't broke don't fix it", just add another 1 or 2 SRMs to booster.
« Last Edit: 02/16/2023 10:38 pm by TrevorMonty »

Offline FutureSpaceTourist

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Couple of Centaur V cert photos from ULA

Tags: centaur v Vulcan ACES 
 

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