I'm just curious what people would think could get done, or would get done (or wouldn't get done) if NASA were to cancel all internal rocket/spacecraft (SLS/Orion) development...
One of Chris's recent articles puts the cost of Orion through first crewed flight at $17 billion
If left to NASA it would have been done with Ares I.
That's why I believe that SLS could perfectly be replaced by the industry.
That would be a very short program.
In 2010 you only had Aerojet and ATK capable of providing the necessary propulsion. Today you arguably also have SpaceX/Blue Origin. There would be more competition for sure, but you would still only develop one HLLV. Whether NASA should take the lead in such a case or outsource it to a single prime contractor is kind of difficult to tell.
You mean like the ISS program, the Space Science program, and the Military space program, all of which do not operate their own rockets but contract commercial launch services, and all of which are examples of ongoing large programs of a scale comparable to the exploration program?
Quote from: Oli on 01/21/2016 12:03 amIn 2010 you only had Aerojet and ATK capable of providing the necessary propulsion. Today you arguably also have SpaceX/Blue Origin. There would be more competition for sure, but you would still only develop one HLLV. Whether NASA should take the lead in such a case or outsource it to a single prime contractor is kind of difficult to tell.Not quite. ULA would have been the company that owned the rocket and the rocket would have been an EELV(Atlas or Delta) phase I or Phase II.
The number of HLVs developed would not necessarily stay at one.
That way you're just handing over the key to a private monopolist. I don't see how that is preferable to a government-led program.
The barrier to entry would be extremely high, especially with such a small market. Too high even for SpaceX.Note I'm talking strictly about HLLV here, there are of course alternatives.
Quote from: Oli on 01/21/2016 05:09 amThat way you're just handing over the key to a private monopolist. I don't see how that is preferable to a government-led program.Normally I might agree but this monopolist is more efficient than NASA in terms of Cost.
Who? ULA? What makes you say it was more efficient?
I think if the SLS and Orion were cancelled, nothing else new would happen. Nothing would replace it.
Quote from: Proponent on 01/20/2016 01:54 pmOne of Chris's recent articles puts the cost of Orion through first crewed flight at $17 billionNot a fair comparison though, for a variety of reasons.
Quote from: pathfinder_01 on 01/21/2016 05:20 amQuote from: Oli on 01/21/2016 05:09 amThat way you're just handing over the key to a private monopolist. I don't see how that is preferable to a government-led program.Normally I might agree but this monopolist is more efficient than NASA in terms of Cost.Who? ULA? What makes you say it was more efficient?
The comparison is unfair, but it's unfair to commercial crew.
In 2010, ULA indicated it could build a 90-tonne-class launch vehicle (Atlas V Phase 2, to be precise) for under $5.5 billion (see 2nd attachment here). SLS will have burned through a multiple of that by the time the 70-tonne version flies.
The actual Delta IV development cost was $3.5B, including a $0.5B USAFinvestment, with multiple configurations including an HLLV configuration, RS-68 engine development, production factory, and two launch complexes. The Atlas V equivalent was $2B, including a $0.5B USAF investment...The EELV-derived evolution suppresses the non-recurring investment. Both the Delta and Atlas vehicles aresubstantially evolved from prior vehicles. Atlas redesigned the Atlas III booster tanks but retained the RD-180engine and Centaur upper stage. The Delta IV upper stages evolved from the prior Delta III configuration. Thisallowed the design teams to focus on what was needed to gain the new capabilities and not design wholly new elements that merely replicated existing capability. In the end, the combination of modular construction and evolutionary design enabled the deployment of two separate launcher systems within 5 years and for less than a combined $5.5B, and can offer similar economies when expanded to the HLLV.
Quote from: Proponent on 01/21/2016 09:43 amThe comparison is unfair, but it's unfair to commercial crew.I could argue otherwise but I'm kind of tired of that debate.Quote from: Proponent on 01/21/2016 10:02 amIn 2010, ULA indicated it could build a 90-tonne-class launch vehicle (Atlas V Phase 2, to be precise) for under $5.5 billion (see 2nd attachment here). SLS will have burned through a multiple of that by the time the 70-tonne version flies.The $5.5bn figure refers to the total cost of Atlas V ($2bn) and Delta IV ($3.5bn) development.QuoteThe actual Delta IV development cost was $3.5B, including a $0.5B USAFinvestment, with multiple configurations including an HLLV configuration, RS-68 engine development, production factory, and two launch complexes. The Atlas V equivalent was $2B, including a $0.5B USAF investment...The EELV-derived evolution suppresses the non-recurring investment. Both the Delta and Atlas vehicles aresubstantially evolved from prior vehicles. Atlas redesigned the Atlas III booster tanks but retained the RD-180engine and Centaur upper stage. The Delta IV upper stages evolved from the prior Delta III configuration. Thisallowed the design teams to focus on what was needed to gain the new capabilities and not design wholly new elements that merely replicated existing capability. In the end, the combination of modular construction and evolutionary design enabled the deployment of two separate launcher systems within 5 years and for less than a combined $5.5B, and can offer similar economies when expanded to the HLLV.