Author Topic: Draft and Final RFP for Gateway logistics/cargo services  (Read 126991 times)

Offline joek

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You are assuming zero markup for the launch service for SpaceX, but markup for the launch service for ULA. ...

Who cares?  The basis of NASA's selection--at least price--was exactly that--price.  What is it going to cost me (NASA) to solve my problem?  If you believe that SpaceX's bid price was incorrect or falsified, or that NASA's evaluation was incorrect or biased, then please just come out and say it.  What specifically are you objecting to?  On what facts are you basing such objections?  The ongoing innuendo is annoying, distracting, and not worthy of this forum.

Offline ulm_atms

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #241 on: 04/12/2020 11:59 pm »
The part that still utterly stuns me is that Boeing completely blew it with the financial aspects of the bid. I would expect them to be more expensive, but I would also think they have enough experience writing proposals to be able to color within the lines when it comes to structuring the finances.

They have already shown with Starliner that there are ways to get more money out of a fixed price contract, so why would they throw in the "conditional fixed price" nonsense?

Well...they are use to cost-plus contracts over the last few decades.  These fixed contracts (maybe...we will see) just bit them with Starliner to a degree.  They tried to save money wherever they could to make enough profit for their liking.  If they have to pay 100% for the refly...then all the extra work to fix the issues...they probably lost a lot of that profit.  And before anyone says "But they got almost double the money!"...they did...but they are all horizontal in their integration...all those middle man needing their profit, and so on and so on...it adds up fast.  Boeing is just not used to dealing with a fixed budget, and with everything going on for them currently company wide...maybe the just didn't think it was worth doing.

Or, they tried to stretch the "fixed" part of the contract so badly it basically said "fixed...but not really"  :o

Offline su27k

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I like Cygnus also.  It has matured into a great spacecraft. 

The FH is basically a LV that it's pricing is about the same as the Atlas-V 401 but has over double the performance capability of the Atlas-V 551.  This is extremely difficult for any other provider to overcome this capability with existing LVs.

Would it have been possible for NGIS to have bid a Improved Cygnus launched by a FH?

Do we know they didn't bid launch by FH? Both NGIS and SNC uses launch subcontractors that has good rating in CPARS, seems to me this is either SpaceX or ULA.

Offline GWH

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #243 on: 04/13/2020 02:48 am »
I just can't see Boeing investing in the expense of a good proposal on their own dime, which wouldn't have helped their bid.

Putting together a bid for fixed fee hardware and services is expensive and risky - with risk and expense having an inverse relationship. The more they invest in their concept and trying to prove it out the lower the risk of the program having huge cost overruns when assumptions are proved false.
So either they cook that cost uncertainty into their price with higher contingency margins, or they try to propose new terms that provide them security on their cost uncertainty.

That said if one of the performance limitations of their bid was Vulcan's TLI capacity, that would be a rich and delicious heaping of justice for Boeing's unwillingness to invest in ULA. Vulcan Heavy SHOULD be a good TLI vehicle, but would it be ready in time? It would exceed all required performance  if ACES and distributed lift was made a priority.

Offline envy887

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The far bigger upset here was Northrop Grumman. I had pegged Lunar Cygnus from the start, and I was wrong. I wish we had more info about why, but it sounds like part of the issue was they overcharged (perhaps not expecting to have such stiff competition).

First of all I like Cygnus, so I'll just throw that out there. In a world where SpaceX did not exist it would be an amazing vehicle, but even in a world where SpaceX exists it is a dependable vehicle with future potential.

Secondly, I would not say that Northrop Grumman "overcharged". They bid what they thought was the how much it would cost them to provide the service, and then they added some profit on top of that. That is normal contracting.

What we see here is the ability of SpaceX to use all the capabilities they have developed over two decades to offer a service for a price significantly lower than their competition. SNC and Northrop Grumman did not have the same abilities or advantages that they could leverage for this specific service, but obviously both companies excel at many other things.

I like both SNC and Northrop Grumman. They are both doing the right things to add capabilities for expanding humanity out into space. So if anything I am a little bummed that only one provider was chosen, but there really isn't that much work to be done on this contract on a yearly basis, so I can understand the award decision.

I like Cygnus also.  It has matured into a great spacecraft. 

The FH is basically a LV that it's pricing is about the same as the Atlas-V 401 but has over double the performance capability of the Atlas-V 551.  This is extremely difficult for any other provider to overcome this capability with existing LVs.

Would it have been possible for NGIS to have bid a Improved Cygnus launched by a FH?

This is not true (or at the very least very misleading in how it is presented). The FH with similar pricing to the 401(~100 million) is the FH with core re-use. Which has a very similar payload capability to the Atlas-V 551 to TLI(see graph). You are talking about the FH expendable, that has never actually had a signed contract so real world prices aren't really established (and are significantly more than the Atlas 401 by every estimation).

When has NASA ever gotten a 401 for $108M contracted price like FH? The 401 prices I'm seeing in the last 2-3 years are more like $150M.

Offline ncb1397

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The far bigger upset here was Northrop Grumman. I had pegged Lunar Cygnus from the start, and I was wrong. I wish we had more info about why, but it sounds like part of the issue was they overcharged (perhaps not expecting to have such stiff competition).

First of all I like Cygnus, so I'll just throw that out there. In a world where SpaceX did not exist it would be an amazing vehicle, but even in a world where SpaceX exists it is a dependable vehicle with future potential.

Secondly, I would not say that Northrop Grumman "overcharged". They bid what they thought was the how much it would cost them to provide the service, and then they added some profit on top of that. That is normal contracting.

What we see here is the ability of SpaceX to use all the capabilities they have developed over two decades to offer a service for a price significantly lower than their competition. SNC and Northrop Grumman did not have the same abilities or advantages that they could leverage for this specific service, but obviously both companies excel at many other things.

I like both SNC and Northrop Grumman. They are both doing the right things to add capabilities for expanding humanity out into space. So if anything I am a little bummed that only one provider was chosen, but there really isn't that much work to be done on this contract on a yearly basis, so I can understand the award decision.

I like Cygnus also.  It has matured into a great spacecraft. 

The FH is basically a LV that it's pricing is about the same as the Atlas-V 401 but has over double the performance capability of the Atlas-V 551.  This is extremely difficult for any other provider to overcome this capability with existing LVs.

Would it have been possible for NGIS to have bid a Improved Cygnus launched by a FH?

This is not true (or at the very least very misleading in how it is presented). The FH with similar pricing to the 401(~100 million) is the FH with core re-use. Which has a very similar payload capability to the Atlas-V 551 to TLI(see graph). You are talking about the FH expendable, that has never actually had a signed contract so real world prices aren't really established (and are significantly more than the Atlas 401 by every estimation).

When has NASA ever gotten a 401 for $108M contracted price like FH? The 401 prices I'm seeing in the last 2-3 years are more like $150M.

$108 million?
Psyche was $117 million: https://spacenews.com/falcon-heavy-to-launch-nasa-psyche-asteroid-mission/
(AFSPC)-52 was $130 million: https://spacenews.com/spacex-wins-130-million-military-launch-contract-for-falcon-heavy/
STP-2 was $160 million: https://spaceflightnow.com/2019/06/23/falcon-heavy-to-flex-muscles-on-demanding-demo-launch-for-u-s-air-force/

Average is $136 million. For comparison, NASA recently got an Atlas V 541 launch for a total estimated launch cost of $165.7 million:
https://www.nasa.gov/press-release/nasa-awards-launch-services-contract-for-environmental-satellite-mission

So, in that case, with falcon heavy you get about 20% more payload to TLI for about 20% less. Keep in mind that Tory Bruno has cut launch costs significantly in recent years. Older contracts may not be applicable today. Beyond that, we don't know what the GLS providers were proposing to use: Atlas V or Vulcan (or something else). Well, we kind of can deduce that Atlas V 551 wasn't bid because it simply can't meet the lift requirements. Vulcan is supposed to be significantly cheaper than Atlas V (essentially delta iv heavy performance for single stick pricing).

But as far as my launch cost comparison, I was simply comparing what was published on the rocketbuilder website to what SpaceX publishes on their website. SpaceX says a falcon heavy with 8 t to GTO is $90 million. Rocketbuilder put Atlas 401 at $109 million

http://spaceflight101.com/ula-rolls-out-rocketbuilder-website/

That is a $19 million dollar difference but it seemed to be the most comparable (it is closer than comparing the Falcon Heavy expendable at $150 million or possibly more to the 401).

edit: can we play guess who:

Quote
SNC’s launch vehicle subcontractor has received mostly good
ratings for its performance in the Technical and Management areas. Early on, customers have
expressed concerns with timely delivery of launch services; however, those schedule concerns
are currently trending in a favorable direction. I have no concerns that SNC’s launch vehicle
major subcontractor could execute the launch vehicle portion of the GLS scope.

Sounds like SpaceX or maybe Blue Origin? But it also says the SNC has negative launch vehicle performance margin which suggests a smaller vehicle than either Falcon Heavy or New Glenn. Or maybe they said core reuse was going to be a thing on either of them and they got docked for trying to take advantage of that (even though they can fall back to expendable).

Quote
Other citations demonstrate somewhat relevant pertinence to a
subset of the GLS effort, such as NGIS’s NextSTEP BAA for habitation development and its
launch-related citations for its launch vehicle subcontractor.

We know that NGIS wasn't their own launch provider, so that excludes OmegA. The only thing we know about Boeing is that the launch vehicle has low launch margins. I'm guessing that that is probably Vulcan, and there is low margins because it is dial a rocket.
« Last Edit: 04/14/2020 04:54 pm by ncb1397 »

Offline envy887

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$108 million? Psyche was $117 million

The contract was later modified to $108M.

Quote
Feb 28 2020 NASA LAUNCH SERVICES II - SPACE EXPLORATION TECHNOLOGIES. MOD 121: THIS MODIFICATION AWARDS THE FIRM FIXED PRICE (FFP) LAUNCH SERVICE FOR THE PSYCHE MISSION PURSUANT TO CONTRACT CLAUSE 14.0, ENTITLED LAUNCH SERVICE TASK ORDERING (LSTO) PROCEDURES. THIS FFP INCLUDES THE FALCON HEAVY STANDARD LAUNCH SERVICE AND STANDARD MISSION INTEGRATION AND THIRTEEN (13) MISSION UNIQUE SERVICES (MUSS). THE TOTAL FIRM FIXED PRICE FOR THIS LAUNCH SERVICE TASK ORDER FOR ALL DEFINITIZED WORK UNDER CONTRACT LINE ITEM NUMBER 8 (CLIN 8) IS $108,426,940.

Anyway, Atlas costs probably aren't that relevant, because even the 551 is far short of the performance needed.

Is there any indication that SNC was trying to pitch a Cargo Dream Chaser variant? That would meet the cargo upmass and volume requirements, but its very heavy and pushing even Falcon Heavy Expendable's performance to TLI.

Offline GWH

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Is there any indication that SNC was trying to pitch a Cargo Dream Chaser variant? That would meet the cargo upmass and volume requirements, but its very heavy and pushing even Falcon Heavy Expendable's performance to TLI.

It was stated that their pitch was the Dream Chaser expendable cargo module "Shooting Star" here: https://www.nasaspaceflight.com/2019/11/snc-names-dream-chaser-cargo-module-updates-crs2-progress/
Quote
Per the Gateway, Mr. Lindsey noted that the Shooting Star module – while designed for ISS cargo runs – meets all of the requirements for pressurized and unpressurized volumes that NASA is seeking as part of its commercial lunar services transportation contracts.

Not as heavy as the full Dream Chaser cargo craft, but how much is unclear.

EDIT:

For context to this program I had asked on Twitter today about Vulcan TLI capacity and ULA pointed me to their rocket rundown published November 2019.
https://www.ulalaunch.com/docs/default-source/rockets/atlas-v-and-delta-iv-technical-summary.pdf

Their official numbers for TLI are:
Vulcan Centaur - 0 solids: 2,300 kg
Vulcan Centaur - 2 solids: 6,300 kg
Vulcan Centaur - 4 solids: 9,000 kg
Vulcan Centaur - 6 solids: 11,300 kg
Vulcan Centaur Heavy- 6 solids: 12,100 kg
« Last Edit: 04/14/2020 08:15 pm by GWH »

Offline mlindner

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #248 on: 04/14/2020 10:34 pm »
Quote
New document reveals significant fall from grace for Boeing’s space program
"I have decided to eliminate Boeing from further award consideration."

by Eric Berger - Apr 10, 2020 4:11pm BST

[...]

When comparing the selection rationale for the 2014 commercial crew contracts with the rationale for the recent Gateway logistics contract, the perception of Boeing's offering could not be more stark. In 2014, Boeing was very much perceived as the gold-standard—expensive, yes, but also technically masterful. In 2020, the company was still perceived as expensive but not ultimately worthy of consideration.

https://arstechnica.com/science/2020/04/a-nasa-analysis-of-boeings-lunar-cargo-delivery-plan-is-very-unflattering/

Seems rather nitpicky. For instance, Boeing has a couple dozen different defense related programs. Yet, only one of them is mentioned in the article, the one that is arguably in worst shape. The "loss" on the fixed price contract could be applied to Eric's favorite company, SpaceX, just as equally with SpaceX indicating they had to spend hundreds of millions of dollars of their own money on the Dragon Crew program over and beyond what NASA paid them to deliver the vehicle.  Seems like somebody could do this to any company. SpaceX has had problems with their falcon launch vehicle(2 engine failures, 2 primary payload losses) and dragon vehicle (one exploded).

That's not correct. SpaceX has indicated that the Crew Dragon program won't be over budget. Where are you sourcing the claim that Crew Dragon was over budget?

Quote from: Elon Musk
The SpaceX program is within 1% of the [NASA] budget; it’s right on budget

See: https://www.cnbc.com/2019/10/10/elon-musk-spacex-spent-hundreds-of-millions-extra-on-crew-dragon.html

You're misremembering this:

Quote
“We’ve spent actually, I think, quite a lot more than than expected – probably on the order of hundreds of millions of dollars more,” Musk said.

Which combined with the above just means they didn't make any profit on the development contract itself. Not that they had to spend a bunch of their own money.
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Offline ncb1397

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #249 on: 04/14/2020 11:18 pm »
Which combined with the above just means they didn't make any profit on the development contract itself. Not that they had to spend a bunch of their own money.

Musk was sort of mumbling through that part, but the NASA manager wouldn't be telling SpaceX how much they spent on Crew Dragon. They just report budget information, and from NASA's perspective, NASA spent on crew dragon nearly exactly how much they were expecting to spend. What SpaceX brought in compared to went out is a totally different story. They wouldn't be tracking that like a cost-plus contract and wouldn't be in a position to inform SpaceX that they are on budget or not. What we do know is that SpaceX was expecting to spend Y and they actually spent Y + hundreds of millions more. That sounds like a problem from a profitability stand point. But regardless, Boeing is a public company and so this information is reported. SpaceX isn't a public company so this information isn't reported. So, the distinction that is being made here is that some journalists can pin point Boeing losing money here or there, but they can't do that for SpaceX because the information is not public. So, all we learned in this exercise, pointing out the losses Boeing took on the KC-46 Pegasus (so far), is that Boeing is public and SpaceX isn't. We also learned that they both don't know what something is going to cost until after the fact. Seems like the distinctions that people are trying to propagate here are in actuality irrelevant and the parallels are obvious.
« Last Edit: 04/14/2020 11:30 pm by ncb1397 »

Offline Coastal Ron

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #250 on: 04/14/2020 11:50 pm »
Which combined with the above just means they didn't make any profit on the development contract itself. Not that they had to spend a bunch of their own money.

Musk was sort of mumbling through that part, but the NASA manager wouldn't be telling SpaceX how much they spent on Crew Dragon. They just report budget information, and from NASA's perspective, NASA spent on crew dragon nearly exactly how much they were expecting to spend. What SpaceX brought in compared to went out is a totally different story. They wouldn't be tracking that like a cost-plus contract and wouldn't be in a position to inform SpaceX that they are on budget or not.

It continues to baffle me why you care about what SpaceX finances are for a contract that is NOT the topic of this thread.

Quote
What we do know is that SpaceX was expecting to spend Y and they actually spent Y + hundreds of millions more. That sounds like a problem from a profitability stand point.

Here is what Elon Musk said:
Quote
“We’ve spent actually, I think, quite a lot more than than expected – probably on the order of hundreds of millions of dollars more,” Musk said.

While SpaceX has had to add funding to build Crew Dragon, according to Musk the company is now sticking closely to what it’s been allotted.

The SpaceX program is within 1% of the [NASA] budget; it’s right on budget,” Musk added.

The program is right on budget. That is a statement from the SpaceX CEO.

But regardless, Boeing is a public company and so this information is reported.

Oh? Then can you please point us to the detailed accounting of the Boeing Starliner program?
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Offline ncb1397

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #251 on: 04/14/2020 11:57 pm »

Oh? Then can you please point us to the detailed accounting of the Boeing Starliner program?

In terms of profit/loss?

Quote
For example, in 2019, we recorded reach-forward losses of $489 million on the Commercial Crew contract primarily reflecting higher estimated costs associated with spacecraft completion, certification and testing, and additional reach-forward losses of $148 million on the KC-46A Tanker contract reflecting higher manufacturing costs. New programs could also have risk for reach-forward loss upon contract award and during the period of contract performance. For example, in 2018, in connection with winning the T-7A Red
https://s2.q4cdn.com/661678649/files/doc_financials/2019/q4/d1a66b81-489a-478c-8a8a-4e3e3d403761.pdf

And the 2018 loss was $57 million. So, we can safely say that Boeing has lost (or invested) hundreds of millions of dollars into Commercial Crew. Maybe SpaceX did as well, it is hard to say with any uncertainty, but there are certain things that have come out that could support that assertion (it is hard to say much of anything about SpaceX's finances, at best we can stumble around in the dark).
« Last Edit: 04/15/2020 12:16 am by ncb1397 »

Offline woods170

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #252 on: 04/15/2020 06:41 am »
The part that still utterly stuns me is that Boeing completely blew it with the financial aspects of the bid. I would expect them to be more expensive, but I would also think they have enough experience writing proposals to be able to color within the lines when it comes to structuring the finances.

They have already shown with Starliner that there are ways to get more money out of a fixed price contract, so why would they throw in the "conditional fixed price" nonsense?

A no-bid would have been embarrassing.  And they likely saw the writing on the wall.  So they punted. Surely they went into this understanding the likely outcome, but wanting to maintain an appropriate defense-facade.  Note that it was not just the "conditional fixed price" factor which eliminated them.  Takes a concerted effort to screw up this badly on a bid, and I doubt that the responsible team was operating without very specific direction.

Emphasis mine.

Never attribute to malice that which is adequately explained by stupidity.

Boeing is not used to the fact that taking exceptions to firm fixed price contracts is NOT the thing to do. Most of their experience (call it smartness if you will) is with cost-plus contracting.

Offline mlindner

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #253 on: 04/15/2020 09:12 am »

Oh? Then can you please point us to the detailed accounting of the Boeing Starliner program?

In terms of profit/loss?

Quote
For example, in 2019, we recorded reach-forward losses of $489 million on the Commercial Crew contract primarily reflecting higher estimated costs associated with spacecraft completion, certification and testing, and additional reach-forward losses of $148 million on the KC-46A Tanker contract reflecting higher manufacturing costs. New programs could also have risk for reach-forward loss upon contract award and during the period of contract performance. For example, in 2018, in connection with winning the T-7A Red
https://s2.q4cdn.com/661678649/files/doc_financials/2019/q4/d1a66b81-489a-478c-8a8a-4e3e3d403761.pdf

And the 2018 loss was $57 million. So, we can safely say that Boeing has lost (or invested) hundreds of millions of dollars into Commercial Crew. Maybe SpaceX did as well, it is hard to say with any uncertainty, but there are certain things that have come out that could support that assertion (it is hard to say much of anything about SpaceX's finances, at best we can stumble around in the dark).

Why use such weasel words? We have a clear statement from the CEO that they didn't invest/lose hundreds of millions. There's no "uncertainty" or "maybe" unless you're claiming the CEO is simply lying. You're certainly free to make such a claim, however please don't state it as some kind of fact that there were hundreds of millions lost. There isn't any evidence that has stated that as far as I am aware. If you have any, feel free to provide it.
« Last Edit: 04/15/2020 09:14 am by mlindner »
LEO is the ocean, not an island (let alone a continent). We create cruise liners to ride the oceans, not artificial islands in the middle of them. We need a physical place, which has physical resources, to make our future out there.

Offline ncb1397

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #254 on: 04/15/2020 02:25 pm »

Oh? Then can you please point us to the detailed accounting of the Boeing Starliner program?

In terms of profit/loss?

Quote
For example, in 2019, we recorded reach-forward losses of $489 million on the Commercial Crew contract primarily reflecting higher estimated costs associated with spacecraft completion, certification and testing, and additional reach-forward losses of $148 million on the KC-46A Tanker contract reflecting higher manufacturing costs. New programs could also have risk for reach-forward loss upon contract award and during the period of contract performance. For example, in 2018, in connection with winning the T-7A Red
https://s2.q4cdn.com/661678649/files/doc_financials/2019/q4/d1a66b81-489a-478c-8a8a-4e3e3d403761.pdf

And the 2018 loss was $57 million. So, we can safely say that Boeing has lost (or invested) hundreds of millions of dollars into Commercial Crew. Maybe SpaceX did as well, it is hard to say with any uncertainty, but there are certain things that have come out that could support that assertion (it is hard to say much of anything about SpaceX's finances, at best we can stumble around in the dark).

Why use such weasel words? We have a clear statement from the CEO that they didn't invest/lose hundreds of millions. There's no "uncertainty" or "maybe" unless you're claiming the CEO is simply lying. You're certainly free to make such a claim, however please don't state it as some kind of fact that there were hundreds of millions lost. There isn't any evidence that has stated that as far as I am aware. If you have any, feel free to provide it.

No, his statement indicates that NASA was on budget with commercial crew - in regards to SpaceX specifically. Which isn't surprising given that it is a fixed price contract and the contractor eats any cost over-runs. Who knows where SpaceX is. SpaceX indicates they blew through their budget estimates. Whether they put enough padding in their contract to cover that, I suppose we don't really know.
« Last Edit: 04/15/2020 02:29 pm by ncb1397 »

Online Robotbeat

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #255 on: 04/15/2020 02:36 pm »
It’s worth noting that based on SpaceX’s figures for trans Mars insertion, the Falcon Heavy performance is on the order of 18-20t TLI. That’s *not* just 20% higher than Atlas V 551. It’s such a performance advantage that they probably can recover at least the side boosters.
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Offline ncb1397

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #256 on: 04/15/2020 02:41 pm »
It’s worth noting that based on SpaceX’s figures for trans Mars insertion, the Falcon Heavy performance is on the order of 18-20t TLI. That’s *not* just 20% higher than Atlas V 551. It’s such a performance advantage that they probably can recover at least the side boosters.

If this is a reference to my figures, my statement was Falcon Heavy (reusable) was 20% higher payload than a 541. You are talking about Falcon Heavy expendable, and the same source with the same methodology for the Atlas V configurations estimates a lot lower for TLI than that (more like 15-16 t rather than 18-20 t...if they are "sandbagging" figures they are probably doing it across the board). And that is with an instantaneous launch window BTW. Your payload will be less if you allow for a launch window.

See:
....
Average is $136 million. For comparison, NASA recently got an Atlas V 541 launch for a total estimated launch cost of $165.7 million:
https://www.nasa.gov/press-release/nasa-awards-launch-services-contract-for-environmental-satellite-mission

So, in that case, with falcon heavy you get about 20% more payload to TLI for about 20% less.
....

I suppose if you only use Psyche as the reference point rather than the 3 contract average, it is 29% less.

edit: Looking at official figures. It appears that the closest thing to a falcon heavy reusable with 8 t to GTO is the Atlas V 541 with 8290 kg to GTO. So, it is interesting that the situation reverses and the falcon heavy reusable actually gets more payload to TLI than the 541? Perhaps the 8 t figure is based on RTLS booster and droneship core (the only configuration they have tried...it worked once with a 6.5 t payload) and the lsp figures gets more performance by assuming 3 droneships?

https://www.ulalaunch.com/rockets/atlas-v
« Last Edit: 04/15/2020 03:17 pm by ncb1397 »

Offline rakaydos

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #257 on: 04/15/2020 03:56 pm »
It’s worth noting that based on SpaceX’s figures for trans Mars insertion, the Falcon Heavy performance is on the order of 18-20t TLI. That’s *not* just 20% higher than Atlas V 551. It’s such a performance advantage that they probably can recover at least the side boosters.

If this is a reference to my figures, my statement was Falcon Heavy (reusable) was 20% higher payload than a 541. You are talking about Falcon Heavy expendable, and the same source with the same methodology for the Atlas V configurations estimates a lot lower for TLI than that (more like 15-16 t rather than 18-20 t...if they are "sandbagging" figures they are probably doing it across the board). And that is with an instantaneous launch window BTW. Your payload will be less if you allow for a launch window.

I'm not sure why you assume "sandbagging" is across the board. SpaceX is constantly making optimizations, ULA locks in a design before the first one is ever built. The first falcon heavy launch, the one that put a 1.3 ton car into Trans Mars Injection in what was intended to be a fully reusable configuration, used boosters that are obsolete now; it's entirely possible that the "sandbagged" numbers simply haven't kept up with the times.

Offline ncb1397

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #258 on: 04/15/2020 04:30 pm »
It’s worth noting that based on SpaceX’s figures for trans Mars insertion, the Falcon Heavy performance is on the order of 18-20t TLI. That’s *not* just 20% higher than Atlas V 551. It’s such a performance advantage that they probably can recover at least the side boosters.

If this is a reference to my figures, my statement was Falcon Heavy (reusable) was 20% higher payload than a 541. You are talking about Falcon Heavy expendable, and the same source with the same methodology for the Atlas V configurations estimates a lot lower for TLI than that (more like 15-16 t rather than 18-20 t...if they are "sandbagging" figures they are probably doing it across the board). And that is with an instantaneous launch window BTW. Your payload will be less if you allow for a launch window.

I'm not sure why you assume "sandbagging" is across the board. SpaceX is constantly making optimizations, ULA locks in a design before the first one is ever built. The first falcon heavy launch, the one that put a 1.3 ton car into Trans Mars Injection in what was intended to be a fully reusable configuration, used boosters that are obsolete now; it's entirely possible that the "sandbagged" numbers simply haven't kept up with the times.

Sort of. At first they said BFR/ITS was going to be 300 t to LEO. Then it was 150. Then it was >100. In terms of re-usability figures, it seems they may have over-estimated what they could do to the core stage and still recover it. Gwynne Shotwell has made comments that the core stage recovery has proven to be rather difficult (even though they do the water landings with f9 stages quite frequently). It then begs the question what their contracts are assuming. Are they assuming they can recover all the stages they are planning to, and if they don't that affects the profitability of the launch? Are they assuming they may not recover 1/2/3 stages and pricing in full/partial expendable and anything better than that is just gravy? Hard to say.
« Last Edit: 04/15/2020 04:34 pm by ncb1397 »

Offline envy887

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Re: Draft and Final RFP for Gateway logistics/cargo services
« Reply #259 on: 04/15/2020 04:54 pm »
It’s worth noting that based on SpaceX’s figures for trans Mars insertion, the Falcon Heavy performance is on the order of 18-20t TLI. That’s *not* just 20% higher than Atlas V 551. It’s such a performance advantage that they probably can recover at least the side boosters.

If this is a reference to my figures, my statement was Falcon Heavy (reusable) was 20% higher payload than a 541. You are talking about Falcon Heavy expendable, and the same source with the same methodology for the Atlas V configurations estimates a lot lower for TLI than that (more like 15-16 t rather than 18-20 t...if they are "sandbagging" figures they are probably doing it across the board). And that is with an instantaneous launch window BTW. Your payload will be less if you allow for a launch window.

I'm not sure why you assume "sandbagging" is across the board. SpaceX is constantly making optimizations, ULA locks in a design before the first one is ever built. The first falcon heavy launch, the one that put a 1.3 ton car into Trans Mars Injection in what was intended to be a fully reusable configuration, used boosters that are obsolete now; it's entirely possible that the "sandbagged" numbers simply haven't kept up with the times.

Sort of. At first they said BFR/ITS was going to be 300 t to LEO. Then it was 150. Then it was >100. In terms of re-usability figures, it seems they may have over-estimated what they could do to the core stage and still recover it. Gwynne Shotwell has made comments that the core stage recovery has proven to be rather difficult (even though they do the water landings with f9 stages quite frequently). It then begs the question what their contracts are assuming. Are they assuming they can recover all the stages they are planning to, and if they don't that affects the profitability of the launch? Are they assuming they may not recover 1/2/3 stages and pricing in full/partial expendable and anything better than that is just gravy? Hard to say.

I don't think it's likely they can do 3x recovery and still get a vehicle carrying 5000 kg of cargo plus fuel for NHRO insertion to TLI. IMO that's going to be about 13 t in total and well beyond my estimated ~10 t capability with 3x downrange landings, since landing the side cores downrange increases the speed and thus the recovery difficulty of the center core.

So they are probably assuming 2x ASDS (now that they have 2 East Coast barges) for the side boosters and expending the center core, and the issues recovering the core stages don't really factor in at all. The only price data we have for that configuration is "around $95M", so the cost to SpaceX is IMO probably ~1/3 of the total mission cost to SpaceX and ~1/4 of the price to NASA. Whether SpaceX is attributing profit to the FH, to the Dragon, or to both, is merely accounting. They can launch at cost and make money only on Dragon if they want.

The performance of this side ASDS / center expended FH configuration is far in excess of any Atlas (+100% or more) and also significantly better than DIVH or Vulcan Heavy (+20% to +50%).

https://twitter.com/elonmusk/status/963094533830426624

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