Author Topic: ULA orders more RD-180's  (Read 119969 times)

Offline ugordan

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Re: ULA orders more RD-180's
« Reply #100 on: 06/16/2025 09:20 pm »
Wish we would have started building the RD-180's here.  From what I understand we had a license to do so several years ago.  Atlas could still be flying.

A domestically built RD-180 would have been significantly more expensive due to higher U.S. wages. That's why it never really materialized.

It's a great engine, but that's how things stand.

Offline russianhalo117

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Re: ULA orders more RD-180's
« Reply #101 on: 06/16/2025 09:24 pm »
Wish we would have started building the RD-180's here.  From what I understand we had a license to do so several years ago.  Atlas could still be flying.

A domestically built RD-180 would have been significantly more expensive due to higher U.S. wages. That's why it never really materialized.

It's a great engine, but that's how things stand.
And material cost due to having to export all raw resources such as alloys from the Russian Federation.

Offline TrevorMonty

Re: ULA orders more RD-180's
« Reply #102 on: 06/17/2025 01:09 am »
Wish we would have started building the RD-180's here.  From what I understand we had a license to do so several years ago.  Atlas could still be flying.

A domestically built RD-180 would have been significantly more expensive due to higher U.S. wages. That's why it never really materialized.

It's a great engine, but that's how things stand.
And material cost due to having to export all raw resources such as alloys from the Russian Federation.

To economoical would need to be 3D printed, which would endup as redesign exercise.  Easier to start a fresh with model design.

Offline Exastro

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Re: ULA orders more RD-180's
« Reply #103 on: 06/18/2025 12:22 am »
Wish we would have started building the RD-180's here.  From what I understand we had a license to do so several years ago.  Atlas could still be flying.

A domestically built RD-180 would have been significantly more expensive due to higher U.S. wages. That's why it never really materialized.

It's a great engine, but that's how things stand.
And material cost due to having to export all raw resources such as alloys from the Russian Federation.

To economoical would need to be 3D printed, which would endup as redesign exercise.  Easier to start a fresh with model design.


Or finish AR1?

Offline Alter Sachse

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Re: ULA orders more RD-180's
« Reply #104 on: 09/25/2025 02:00 pm »
AV 108 RD-180 No, 114T
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Online DanClemmensen

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Re: ULA orders more RD-180's
« Reply #105 on: 09/25/2025 02:08 pm »
Wish we would have started building the RD-180's here.  From what I understand we had a license to do so several years ago.  Atlas could still be flying.

A domestically built RD-180 would have been significantly more expensive due to higher U.S. wages. That's why it never really materialized.

It's a great engine, but that's how things stand.
And material cost due to having to export all raw resources such as alloys from the Russian Federation.

To economoical would need to be 3D printed, which would endup as redesign exercise.  Easier to start a fresh with model design.


Or finish AR1?
Or use four Merlins to replace the one dual-throat RD-180. Merlins are  highly reliable and should be available in large quantity.
(Yes, this is a joke. ULA has moved to Vulcan and terminated Atlas production.)

Offline Alter Sachse

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Re: ULA orders more RD-180's
« Reply #106 on: 10/10/2025 03:30 pm »
Atlas 5 AV-100

RD-180 124T
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline Alter Sachse

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Re: ULA orders more RD-180's
« Reply #107 on: 12/14/2025 08:38 pm »
Atlas 551 Amazon LEO-launch

RD-180  94T
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline Galactic Penguin SST

Re: ULA orders more RD-180's
« Reply #108 on: 12/14/2025 09:11 pm »
Thank you !

my list:

Bold numbers from Josh

Updated list as attached
Not yet shown up: 87T, 91T, 92T, 96T, 112T, 113T, 116T, 117T, 121T, 125T / AV-089, AV-103, AV-106, AV-109, AV-110, AV-112 to 116

Interestingly your list has AC-206/NROL-23 as launching on RD-180 s/n 8T while Josh_from_Canada listed it using the refurbished 6T1 (you have it used almost a decade later with the Worldview-3 launch in 2014).
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery.

 

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