I was just trying to better understand the advantages of Vulcan.
Quote from: SoftwareDude on 04/15/2023 05:35 pmI was just trying to better understand the advantages of Vulcan.It is cheaper than Atlas and not SpaceX.just like there are more expensive cars and phones that have a business case.
Quote from: Jim on 04/15/2023 06:03 pmQuote from: SoftwareDude on 04/15/2023 05:35 pmI was just trying to better understand the advantages of Vulcan.It is cheaper than Atlas and not SpaceX.just like there are more expensive cars and phones that have a business case.Are there any mission profiles that Vulcan is better for than Falcon 9 or Falcon Heavy?
And if SpaceX has to split F9 ops to a different entity ("pull an ULA") to qualify as a second provider, then why not?
Quote from: Jim on 04/15/2023 06:03 pmQuote from: SoftwareDude on 04/15/2023 05:35 pmI was just trying to better understand the advantages of Vulcan.It is cheaper than Atlas and not SpaceX.just like there are more expensive cars and phones that have a business case.Yes but once SS becomes a thing, F9 will become this second "expensive" rocket - more expensive than SS but cheaper than Vulcan.And if SpaceX has to split F9 ops to a different entity ("pull an ULA") to qualify as a second provider, then why not?
I seriously doubt SS will ever be cheaper to launch than F9.
With ULA having sold 70 Vulcan's as of last June, there seems to be room in the market for F9 and others. Remember, half of F9 2022 launches were for a customer called "SpaceX".
Quote from: Jim on 04/15/2023 06:03 pmQuote from: SoftwareDude on 04/15/2023 05:35 pmI was just trying to better understand the advantages of Vulcan.It is cheaper than Atlas and not SpaceX.just like there are more expensive cars and phones that have a business case.More importantly, it's the only rocket ULA will have, since both Atlas V and Delta IV Heavy are retiring. Vulcan Centaur will be able to handle all of the required NSSL mission profiles, so it replaces both retired launchers for ULA's most important customer.
Quote from: DanClemmensen on 04/15/2023 06:09 pmQuote from: Jim on 04/15/2023 06:03 pmQuote from: SoftwareDude on 04/15/2023 05:35 pmI was just trying to better understand the advantages of Vulcan.It is cheaper than Atlas and not SpaceX.just like there are more expensive cars and phones that have a business case.More importantly, it's the only rocket ULA will have, since both Atlas V and Delta IV Heavy are retiring. Vulcan Centaur will be able to handle all of the required NSSL mission profiles, so it replaces both retired launchers for ULA's most important customer.Several launches of the Atlas V remain on the launch manifest regardless of the Delta IV Heavy retiring in 2024, so ULA will have two rockets by the time the Delta IV Heavy makes its last flight because the Atlas V will conduct launches of the Starliner and Kuiper satellites in the 2023-2029 window.
Quote from: meekGee on 04/15/2023 08:14 pmQuote from: Jim on 04/15/2023 06:03 pmQuote from: SoftwareDude on 04/15/2023 05:35 pmI was just trying to better understand the advantages of Vulcan.It is cheaper than Atlas and not SpaceX.just like there are more expensive cars and phones that have a business case.Yes but once SS becomes a thing, F9 will become this second "expensive" rocket - more expensive than SS but cheaper than Vulcan.And if SpaceX has to split F9 ops to a different entity ("pull an ULA") to qualify as a second provider, then why not?I seriously doubt SS will ever be cheaper to launch than F9. Per kg, perhaps, if you're launching 150T of water or prop or some such thing, or 200 Starlink V2's, but for launching 4-12T individual satellites, probably never. It's simply too large, even if the upper stage is reusable.With ULA having sold 70 Vulcan's as of last June, there seems to be room in the market for F9 and others. Remember, half of F9 2022 launches were for a customer called "SpaceX".
Are there any mission profiles that Vulcan is better for than Falcon 9 or Falcon Heavy?
Quote from: SoftwareDude on 04/15/2023 07:20 pmAre there any mission profiles that Vulcan is better for than Falcon 9 or Falcon Heavy? Vulcan outperforms all versions of Falcon 9 Recoverable. It likely outperforms Falcon Heavy Recoverable as well*. The Falcons can only bust Vulcan's chops by expending stages, which deflates the reuse argument.* Falcon Heavy has only flown once when all three cores landed, though one was lost at sea. It carried a 6.47 tonne payload to GTO. Vulcan 522 can lift 7.4 tonnes supposedly, Vulcan 562 13.3 tonnes, etc.. - Ed Kyle
Vulcan outperforms all versions of Falcon 9 Recoverable and Falcon Heavy Recoverable*. The Falcons can only bust Vulcan's chops by expending stages, which deflates the reuse argument....
Quote from: edkyle99 on 04/16/2023 03:46 pmQuote from: SoftwareDude on 04/15/2023 07:20 pmAre there any mission profiles that Vulcan is better for than Falcon 9 or Falcon Heavy? Vulcan outperforms all versions of Falcon 9 Recoverable. It likely outperforms Falcon Heavy Recoverable as well*. The Falcons can only bust Vulcan's chops by expending stages, which deflates the reuse argument.* Falcon Heavy has only flown once when all three cores landed, though one was lost at sea. It carried a 6.47 tonne payload to GTO. Vulcan 522 can lift 7.4 tonnes supposedly, Vulcan 562 13.3 tonnes, etc.. - Ed Kyle 57.0 mt Falcon Heavy, core booster expended: $ 97 million24.6 mt Vulcan Centaur VC4: ?27.2 mt Vulcan Centaur VC6: ?The first number is the maximum metric tons to LEO. The second is the nominal price for such a mission.For some missions, price will be what determines which rocket is most advantageous. But I haven't seen any numbers on what will be charged for the Vulcan Centaur launches.For some missions, the maximum mass to orbit will determine the winner. So far, unless we are talking about future upgrades to the Vulcan Centaur, I think the Falcon Heavy wins.Now for other destinations than LEO the Vulcan Centaur VC6 may possibly beat the Falcon Heavy. For instance:6.5 mt to GEO Vulcan Centaur VC6: ?is pretty close to what a Falcon Heavy, core booster expended, can lift to GEO.
Quote from: edkyle99 on 04/16/2023 03:46 pmVulcan outperforms all versions of Falcon 9 Recoverable and Falcon Heavy Recoverable*. The Falcons can only bust Vulcan's chops by expending stages, which deflates the reuse argument....Performance is one dimension. How about cost? Maybe "deflates reuse argument", but does not obviate it. Given lack of competition, don't think anyone really knows what Falcons floor price is. So what if Vulcan can do it for $$ and Falcon can do it for $? Vulcan loses. If, for the majority of Falcon's market (don't forget Starlink and Transporter), reusable is cheaper, Vulcan loses. Loses, as in terms of market, which is what is going to define the difference between success and failure (or second-third place); not simply performance.
Quote from: SoftwareDude on 04/15/2023 07:20 pmAre there any mission profiles that Vulcan is better for than Falcon 9 or Falcon Heavy? Vulcan outperforms all versions of Falcon 9 Recoverable and Falcon Heavy Recoverable*. The Falcons can only bust Vulcan's chops by expending stages, which deflates the reuse argument.* Falcon Heavy has only flown once when all three cores landed, though one was lost at sea. It carried a 6.47 tonne payload to GTO. Vulcan 522 can lift 7.4 tonnes supposedly, Vulcan 562 13.3 tonnes, etc.. - Ed Kyle
As for cost, in 2-3 years, absolutely SS will be cheaper per launch, size and all.