Quote from: AncientU on 03/31/2017 10:48 amQuote from: M.E.T. on 03/31/2017 10:15 amQuote from: Steven Pietrobon on 03/31/2017 08:19 amSome notes I took from the presser.Fairings cost $6M each.$1B development spent on reuse. Three quarters of the cost to reduce by an order of a magnitude. Thus for $62M expendable, that gives (0.25 + 0.75*0.1)*62 = $20.15M reusable cost.So about 25 launches to recover the $1B development costs then based on that calculation. Presuming you can keep charging $62m per launch. Which might be difficult, if customers are insisting on reuse discounts.Development cost is likely already retired (or near retired) from corporate reinvestment of all revenue streams.Bulk of future savings will also be reinvested.Maybe I'm misinterpreting things, but I was thinking more along the lines of how many launches before they have made more money thanks to reuse than they would have made at that point if they hadn't bothered with it at all.
Quote from: M.E.T. on 03/31/2017 10:15 amQuote from: Steven Pietrobon on 03/31/2017 08:19 amSome notes I took from the presser.Fairings cost $6M each.$1B development spent on reuse. Three quarters of the cost to reduce by an order of a magnitude. Thus for $62M expendable, that gives (0.25 + 0.75*0.1)*62 = $20.15M reusable cost.So about 25 launches to recover the $1B development costs then based on that calculation. Presuming you can keep charging $62m per launch. Which might be difficult, if customers are insisting on reuse discounts.Development cost is likely already retired (or near retired) from corporate reinvestment of all revenue streams.Bulk of future savings will also be reinvested.
Quote from: Steven Pietrobon on 03/31/2017 08:19 amSome notes I took from the presser.Fairings cost $6M each.$1B development spent on reuse. Three quarters of the cost to reduce by an order of a magnitude. Thus for $62M expendable, that gives (0.25 + 0.75*0.1)*62 = $20.15M reusable cost.So about 25 launches to recover the $1B development costs then based on that calculation. Presuming you can keep charging $62m per launch. Which might be difficult, if customers are insisting on reuse discounts.
Some notes I took from the presser.Fairings cost $6M each.$1B development spent on reuse. Three quarters of the cost to reduce by an order of a magnitude. Thus for $62M expendable, that gives (0.25 + 0.75*0.1)*62 = $20.15M reusable cost.
The big problem is, of course, that the Eastern Range is not set up to support launches every 24 hours. So, even if they can get a rocket back to flight readiness in 24 hours, it is a bit of a moot point.
Quote from: AC in NC on 03/31/2017 10:22 amRoughly: "Our aspirations will be zero hardware changes. Reflight in 24h. The only thing that changes is you reload propellent. We might get there by the end of this year but if not this year I'm confident we'll get there next year."Ohh wow, thank you! But lets see. SpaceX has a fantastic pace, but I remain skeptical when it comes to timelines voiced by Elon. Factoring in the Elon dilation factor, its some time in 2019. But doesnt really matter, the feat alone would be most impressive!
Roughly: "Our aspirations will be zero hardware changes. Reflight in 24h. The only thing that changes is you reload propellent. We might get there by the end of this year but if not this year I'm confident we'll get there next year."
Quote from: Ben the Space Brit on 03/31/2017 11:26 amThe big problem is, of course, that the Eastern Range is not set up to support launches every 24 hours. So, even if they can get a rocket back to flight readiness in 24 hours, it is a bit of a moot point.Not yet. They recently showed they are open to change with automated FTS, saving the effort of about 90 people every launch, and are looking to "drive every inefficiency out of the system".
Another thing not mentioned last night but gearing toward reusability at a rapid pace is that Core #1021 from last night only took them four months to refurb and process -- even though it was nearly a year between launches. That in itself is a good mark to hit on your first try at reuse when you're being super extra inspect-y on the booster to learn about its condition after use.
Quote from: Ben the Space Brit on 03/31/2017 11:26 amThe big problem is, of course, that the Eastern Range is not set up to support launches every 24 hours. So, even if they can get a rocket back to flight readiness in 24 hours, it is a bit of a moot point.It is not moot. For strategic reasons. They aren't going to have great demand for 24hr reflight even if they can do it and the range and processing supports it. But for strategic reasons, I suggest that it is very important for SpaceX to achieve 24hr reflight capability (regardless of whether customers and range can deal with that) because they need to understand 24hr reflight in order to achieve 1hr reflight for ITS which Elon also discusses in this cued up link to the press conference.
Same can be said about a reusable rocket or FH payload capability or ITS -- they are building for a goal other than the launch market of the last couple decades. They're all about the next couple... strategic reasons like AC said.
Quote from: AncientU on 03/31/2017 01:15 pmSame can be said about a reusable rocket or FH payload capability or ITS -- they are building for a goal other than the launch market of the last couple decades. They're all about the next couple... strategic reasons like AC said.It really is somewhat difficult to adjust to adjust to such aggressive goals that aren't necessarily serving the current market but are serving to prove out interrelated aspects of such grander goals.One of the best examples of this is the retropropulsive 1st stage recovery. It's hard to imagine that it's not the end goal in and of itself. But if I recall correctly it has been stated that the earth-based retropropulsive landing has proven out a very larger portion of what is required to land on Mars.Another is certainly the "Tourist Trip" round the moon particularly with regards to BEO mission management.
Quote from: Ben the Space Brit on 03/31/2017 11:26 amThe big problem is, of course, that the Eastern Range is not set up to support launches every 24 hours. So, even if they can get a rocket back to flight readiness in 24 hours, it is a bit of a moot point.It is not moot. For strategic reasons. They aren't going to have great demand for 24hr reflight even if they can do it and the range and processing supports it. But for strategic reasons, I suggest that it is very important for SpaceX to achieve 24hr reflight capability (regardless of whether customers and range can deal with that) because they need to understand 24hr reflight in order to achieve 1hr reflight for ITS which Elon also discusses in this cued up link to the press conference.edit to add:And with more practical near-term consequence, it means (again regardless of whether it is used) SpaceX has eliminated all but 24 hours of refurbishment expense.
So is there any chance that the type of up front development costs of reusability can be used as major barrier to entry for future competitors, who will see far lower payback prospects given that SpaceX is already in the market and able to offer rock bottom prices? The $30m "fat" that SpaceX can build into each launch price will not be available to any future followers in this industry.Furthermore, even if newcomers are able to join, it is reasonable to assume that SpaceX's practical experience and data gathered will by then have allowed them to refine the art even further, driving revenues per launch even lower - possibly to the point where the newcomer is not even making a profit on each launch. In that scenario, recouping initial investment costs will never be possible. I guess my point is, as much as Elon says the goal is to make access to space cheaper in general, it surely helps his cause even more if all the cheap access is provided by SpaceX. Then everyone who wants to get to space is still getting there cheaply, but all that launch volume is coming through SpaceX's revenue stream.So, can SpaceX develop a bit of a monopoly here, to help fund their Mars dreams?
I look forward to the day when they launch a used booster and I'm not holding my breath all the way to MECO.