And sure, Starlink will likely make them a great deal of money in the long run, but do we expect ULA to also diversify into in-space applications which require high launch cadence?
Quote from: oldAtlas_Eguy on 01/22/2022 05:03 pmThe bottom line.Reuse if implemented correctly is highly economically successful. Globally last year the total was 135 successful launches. Up >50% from the numbers in 2016 (83 successful launches [Gunter's Space Page 2016 year of launches list]). 91 of 2021's successes were performed by just three launch vehicle families: CZ (DF-5 based), Falcon 9, and R-7. Only 29 of those flights provided successful first stage recoveries (defined as returning a usable first stage). The truth is that China's all-expendable program has been responsible for much of the growth in launch numbers recently, building whatever "space environmental sensing" network they are building up there. - Ed Kyle
The bottom line.Reuse if implemented correctly is highly economically successful. Globally last year the total was 135 successful launches. Up >50% from the numbers in 2016 (83 successful launches [Gunter's Space Page 2016 year of launches list]).
Quote from: trimeta on 01/24/2022 06:53 am And sure, Starlink will likely make them a great deal of money in the long run, but do we expect ULA to also diversify into in-space applications which require high launch cadence?it can't
Quote from: Jim on 01/24/2022 01:06 pmQuote from: trimeta on 01/24/2022 06:53 am And sure, Starlink will likely make them a great deal of money in the long run, but do we expect ULA to also diversify into in-space applications which require high launch cadence?it can'tBut the parents can.This whole ULA vs. parents is just a corporate naming game. ULA was the launch services of the parents and now it's merged and incorporated separately, but the overall picture is the same.Starlink and SpaceX could also have been incorporated separately, just like Kuiper and BO are too.The only difference is that when it's a single entity, it's impossible to finger point across divisions as easily as it is to finger point across companies, since it's the same CEO...
Quote from: meekGee on 01/24/2022 04:35 pmQuote from: Jim on 01/24/2022 01:06 pmQuote from: trimeta on 01/24/2022 06:53 am And sure, Starlink will likely make them a great deal of money in the long run, but do we expect ULA to also diversify into in-space applications which require high launch cadence?it can'tBut the parents can.This whole ULA vs. parents is just a corporate naming game. ULA was the launch services of the parents and now it's merged and incorporated separately, but the overall picture is the same.Starlink and SpaceX could also have been incorporated separately, just like Kuiper and BO are too.The only difference is that when it's a single entity, it's impossible to finger point across divisions as easily as it is to finger point across companies, since it's the same CEO...That's a valid point -- if Boeing or Lockheed Martin went into the in-space activities business (to a greater extent than they already are, Boeing's existing satellite busses don't seem to demand high launch cadence for example), they could push for ULA to make high-cadence rockets with reusability. Although there's still one wrinkle: since ULA has two owners, you need both of them to approve such a change in direction, but if only one of those owners has an in-space activities business to justify it, this might be a harder sell.
Irene Klotz@Free_SpaceTo most efficiently fulfill its launch commitment to Amazon, ULA is moving ahead with program to recover Vulcan BE-4 engines for reuse, @torybruno tells @AviationWeek on sidelines of #SpaceSymposium
Re: SMART reuse...I'm surprised but pleasantly so - But I remain skeptical that this kind of reuse will provide the cost savings they are hoping for.
I guess there is a bright side to the "Where's the engines Jeff?" catcalls for BE-4 delays. If you reuse them, you don't have to buy new.
Re: SMART reuse...I'm surprised but pleasantly so - But I remain skeptical that this kind of reuse will provide the cost savings they are hoping for. BUT I am excited to see them trying, and I do wonder how many Vulcans will be launched before they start attempting recovery.
Quote from: Lars-J on 04/05/2022 08:05 pmRe: SMART reuse...I'm surprised but pleasantly so - But I remain skeptical that this kind of reuse will provide the cost savings they are hoping for. BUT I am excited to see them trying, and I do wonder how many Vulcans will be launched before they start attempting recovery.Even if it doesn't save any money, as Rocketlab have mentioned reuse allows for an increase in flight rate without an increase in production rate.
SpaceX makes Merlins and Raptors for about $1 million apiece (I’m part because they make a LOT of them), and certainly engines must be a significant portion of the pod cost.
Quote from: Robotbeat on 04/07/2022 04:09 pmSpaceX makes Merlins and Raptors for about $1 million apiece (I’m part because they make a LOT of them), and certainly engines must be a significant portion of the pod cost.Do they? for Merlins, they need one for each expended second stage, or or about 50/yr, plus nine for each expended F9, FH side, or FH core, and a few replacements. so <100 Merlins/yr.For raptors, we don't know yet. A bunch to get started, and then not many until building the mythical Mars fleet. After the expended test boosters (maybe 3?) they need about 3 operational SH to handle the entire world's payload demands, so that's 100 + 100 for SH. They also need six or nine for each SS: pick a number, but the SS inventory must be bigger. Let's say 20 to start, so again less than 200. That's 400 raptors to get to maybe 2026.By contrast, expendable Vulcan needs 65 pairs of engines, and New Glenn needs 7(?) for each reusable launcher, so maybe 200 total by 2026. That's fewer, but not an order of magnitude fewer.
Quote from: DanClemmensen on 04/07/2022 04:47 pmQuote from: Robotbeat on 04/07/2022 04:09 pmSpaceX makes Merlins and Raptors for about $1 million apiece (I’m part because they make a LOT of them), and certainly engines must be a significant portion of the pod cost.Do they? for Merlins, they need one for each expended second stage, or or about 50/yr, plus nine for each expended F9, FH side, or FH core, and a few replacements. so <100 Merlins/yr.For raptors, we don't know yet. A bunch to get started, and then not many until building the mythical Mars fleet. After the expended test boosters (maybe 3?) they need about 3 operational SH to handle the entire world's payload demands, so that's 100 + 100 for SH. They also need six or nine for each SS: pick a number, but the SS inventory must be bigger. Let's say 20 to start, so again less than 200. That's 400 raptors to get to maybe 2026.By contrast, expendable Vulcan needs 65 pairs of engines, and New Glenn needs 7(?) for each reusable launcher, so maybe 200 total by 2026. That's fewer, but not an order of magnitude fewer.I applaud the attempt at numerical estimates. However, by my wild guess, informed by past performance, I'd say that:* SX will need to produce more than you say (they will make more prototypes, and they will lose/expend a significant number)* Blue won't produce the numbers you estimate by 2026. Vulcan won't fly that much by then either.