Shuttle is not the benchmark.
It's how much the Russians were charging for Soyuz seats and the whole "assured access" requirement.
You are just piling bad assumptions on top of each other.
NASA is not limited to 4 missions per year, they could order more, for example the chart at https://forum.nasaspaceflight.com/index.php?topic=37802.msg1799634#msg1799634 shows 5 CRS2 missions in FY2021.
The contract doesn't have to end in 2024, it can be extended like the original CRS contract. The original CRS contract has a 7 years span (2008 to 2015), but now it's extended to 2019/2020.
Looking historically at CRS missions and the upcoming plan, they have averaged 4-5 per year. Assuming 5 per year, that would be 25 missions, 7 more than the minimum in the contracts. To give themselves maximum flexibility NASA would have given each of the providers all of those extra missions as an option, or 13 per provider, 39 total.
The actual cost per mission would probably be at least 10% less than this (probably no single mission would be a maximum cost one anyway, because that would involve different payloads that need every type of special late load, quick return, mission assurance and whatever other options may exist at the same time.)
Quote from: su27k on 04/05/2018 03:20 pmNASA is not limited to 4 missions per year, they could order more, for example the chart at https://forum.nasaspaceflight.com/index.php?topic=37802.msg1799634#msg1799634 shows 5 CRS2 missions in FY2021.Thanks for pointing that out! I was using the same chart (not edited by NSF) and I missed the SpaceX CRS2 mission in FY2021. As FY2022 and FY2023 are four missions, FY2024 is also likely to be planned as four missions, so that makes 21 missions at $667M each.
QuoteThe contract doesn't have to end in 2024, it can be extended like the original CRS contract. The original CRS contract has a 7 years span (2008 to 2015), but now it's extended to 2019/2020.Yes, but NASA said the maximum of $14B is for 2016 to 2024, not after. Any extension beyond 2024 may require additional funding.
I.A.2 PERIOD COVERED BY PROCUREMENTThis effort covers a contract period of 7 years. The total period of performance for this effort isDecember 23, 2008 through December 31, 2015.I.A.3 INDEFINITE DELIVERY INDEFINITE QUANTITY (IDIQ), FIRM FIXEDPRICE CONTRACTIn accordance with Clause VI.A.5, Single or Multiple Awards (FAR 52.216-27) (Oct 1995),NASA may elect to award multiple contracts. The guaranteed minimum value of this contract isthe negotiated value of 20,000 kg (20 MT) ofupmass to the International Space Station (ISS)based on the values established in Clause I.A.4. If the contract includes the acceptance of Sub-CLIN 0001AC, an additional guaranteed minimum value of this contract is increased by thenegotiated value of 3,000 kg (3 MT) of Return Cargo Downmass, based on the valuesestablished in Clause I.A.4.The total maximum value of each contract awarded is $3.1 billion.
That may be a simple misunderstanding or miscommunication about the contract. I don't think CRS2 contract is publicly released (Maybe someone should FOIA it), but in CRS1 contract, it has the following wording:QuoteI.A.2 PERIOD COVERED BY PROCUREMENTThis effort covers a contract period of 7 years. The total period of performance for this effort isDecember 23, 2008 through December 31, 2015.I.A.3 INDEFINITE DELIVERY INDEFINITE QUANTITY (IDIQ), FIRM FIXEDPRICE CONTRACTIn accordance with Clause VI.A.5, Single or Multiple Awards (FAR 52.216-27) (Oct 1995),NASA may elect to award multiple contracts. The guaranteed minimum value of this contract isthe negotiated value of 20,000 kg (20 MT) ofupmass to the International Space Station (ISS)based on the values established in Clause I.A.4. If the contract includes the acceptance of Sub-CLIN 0001AC, an additional guaranteed minimum value of this contract is increased by thenegotiated value of 3,000 kg (3 MT) of Return Cargo Downmass, based on the valuesestablished in Clause I.A.4.The total maximum value of each contract awarded is $3.1 billion.The bold is done by me, it's pretty easy to mistaken these two parts to mean maximum of $3.1 billion is for 2008 to 2015, but that is not the case as we have seen.
CRS-1 contract for SpaceX was eventually maxed-out at the reported maximum of $3.1 billion. That is for 20 CRS-1 missions in total. The last 5 missions were awarded just a week before the original contract period ran out.
In short: the CRS-2 contract has a maximum value of $14 billion, but only 18 missions have been awarded so far (a minimum of six missions per provider, for 3 providers).My hunch is that NASA can have at least double that amount of missions for that $14 billion. And IMO likely even more.
Quote from: woods170 on 04/06/2018 06:48 amCRS-1 contract for SpaceX was eventually maxed-out at the reported maximum of $3.1 billion. That is for 20 CRS-1 missions in total. The last 5 missions were awarded just a week before the original contract period ran out. So that's 2 suppliers at (2x$3.1Bn) total for 20 missions? that's $310m/each?
The contract, signed just before Christmas, was not announced at the time by either party but has been confirmed by both. It brings to 20 the number of missions now assigned to SpaceX under the Commercial Resupply Services (CRS) contract first signed in 2008.In contrast, the other company performing CRS missions, Orbital ATK of Dulles, Virginia, has been assigned just 10 flights and was not part of the end-year orders.
Quote from: woods170 on 04/06/2018 06:48 amIn short: the CRS-2 contract has a maximum value of $14 billion, but only 18 missions have been awarded so far (a minimum of six missions per provider, for 3 providers).My hunch is that NASA can have at least double that amount of missions for that $14 billion. And IMO likely even more.If that's $14Bn split across 3 suppliers and 18 missions that about $777m a flight. More than double the cost of CRS1.On that basis it would seem they will be awarding more flights.
No. Twenty (20) missions for SpaceX, ten (10) for Orbital. A total of 30 missions under CRS-1.
Quote from: woods170 on 04/06/2018 11:54 amNo. Twenty (20) missions for SpaceX, ten (10) for Orbital. A total of 30 missions under CRS-1.11 for Orbital, 31 total.I've always assumed CRS-2 has enough money to run through 2028.
Quote from: gongora on 04/06/2018 01:04 pmQuote from: woods170 on 04/06/2018 11:54 amNo. Twenty (20) missions for SpaceX, ten (10) for Orbital. A total of 30 missions under CRS-1.11 for Orbital, 31 total.I've always assumed CRS-2 has enough money to run through 2028.Just checked the FPIP at L2. It is actually 12 for Orbital. So 32 missions in total for CRS-1.And I agree that the contract value for CRS-2 is enough to run through 2028.
11 for Orbital, 31 total.
What were the per-kg costs for Shuttle delivering cargo payload again? Anyone know?
The relevant paragraph."Under the existing CRS contracts awarded in 2008, Orbital ATK and SpaceX will deliver an estimated 93,800 kilograms of cargo to the ISS over 31 missions for a total cost of $5.93 billion. With the CRS-2 contracts, those two companies and Sierra Nevada Corporation (SNC) will transport 87,900 kilograms to the station on 21 missions for a projected cost of $6.31 billion."CRS-1 average mission cost was $191M compared with $300M for CRS-2. Per kg costs are an eye watering $63,200/kg for CRS-1 and $71,800/kg for CRS-2.
The OIG audit of CRS has already been posted in a couple other threads.
By the end of 2017, NASA had ordered 8 CRS-2 missions that followed this strategy; however, it is unclear whether the Agency will continue this pattern for the remaining 13 CRS-2 missions.