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This implies that efficiency is related to your total mass. That would mean that a heavier payload somehow made your rocket less efficient. Or that as you burned fuel and therefore had less mass, it became more efficient. Rockets themselves really don't contribute much to overall efficiency...

You are now quoting a different person. As I posted above, you attempted to correct @Doggydogworld, as this is the post you replied to when you tried to claim he was conflating "chip" with "board" No need to drag this out. You re welcome to debate with @EQC_ the merits of eliminating 300K...

I don't believe he was arguing that regarding C-code execution location. He was merely pointing out those processing units are on the same chip die, not different chips, as you stated. You then doubled down by stating he was conflating "chip" with "board"... hence my providing the die layout...

No, he wasn't. The ARM cores and the NN procesing units are on the same chip not board:

Yeah, coastal launches would certainly have more of a safety factor. Although that instance in the US was also during a test at White Sands... which is pretty darn inland as well.

Berger reports that: So... sounds like 2 failures... maybe not enough clamps (or not all of them latched properly), leaving all the load to too few clamps, which then had a structural failure in the clamps themselves or their mounting points? Apparently, the US lost a rocket similarly in the...

Interesting that the metal slotted anchor points that are cast into the tiles must be open on top so the worker can squeeze the heads of the pins to (hopefully) release the tile...

Efficiency and total thrust are not the same. Some engines, such as ion thrusters, have very high efficiency/ISP (in the 1000's), but relatively low thrust, (< 1 lb), whereas chemical rockets have high thrust (100,000's of lbs) yet have much less ISP (100's). So efficiency in not the sole...

hehe... awesome soundtrack link... haven't seen that movie for years... might be time for another viewing. Maybe a double feature with the 1978 version of Invasion of the Body Snatchers... in memory of Sutherland.

Well, if the argument boils down to "I don't believe the published spec", I think that unless you can provide your calcs that they can't meet that number, I'm going to assume the folks that have been actually doing the things within the limits of physics know what they're talking about. Even if...

Ah ok... so it's surmised they are probably there on ISS as well... Interesting, thanks for that...

If it was something considered some time ago, I wonder why it's not bee attempted, given engines have been the most expensive bits for quite a while. If it was considered only recently, given the ability to land the entire rocket has been demonstrated, it seems a bit of too little, too late...

So... it appears that arm-to-booster contact is something they are at least testing... so maybe @JB47394 it's in the cards as you surmised: On edit: and another-

Yeah... it's hard to imagine that retrofitting a detachable engine bay, locking mechanisms, plumbing disconnects, descent shielding, landing mechanism, etc... on to a static disposable rocket is really going to be that feasible...

@Eka A is this what you are referring to? When you say "There are bacteria and fungi living outside on the surface of ISS" are you implying that somehow this experiment produced a colony that made its way to the exterior surface of the station?

I give it a less than 50% chance of ever being workable to the point it's used to any significant degree... and that may be generous....

(There are a few other BO threads, but they are specific, i.e,- "New Glenn". etc... or is a "versus SpaceX" thread.. so starting this one.. @Grendal please feel free to move if a better place) Snippet in the latest ARS Rocket Report on BE-4 recovery/reusability: I have to say this whole plan...

Yeah, the root cause of that would be interesting to know... suspect the Chinese will not be eager to share, however... Never heard of Tofu dreg before... man if the hold down bolts literally pulled out of poor quality concrete... oof... Fun fact: The back-up mechanism for the "frangible nut"...

Hmm.. fungus on the exterior? You have anything on that to read?

And I don't think it was all just ease/expense of construction... while steel is heavier per unit area than carbon fiber or other composites, Elon has said that the additional heat shielding required for composites made steel less of a tradeoff in terms of overall mass. I suspect that has...

So you mention "dimensions"... Starship is larger than Saturn V in just about every dimension, except diameter, where I think the engine skirt of the Saturn sticks out a bit past the Starship's straight body, which in turn is wider than Saturn as it tapers down the higher up you go. Starship is...

I actually am not entirely convinced it will happen... it's more that I see that it could... part of it is that there might be some economic driver that keeps the momentum up... mining is the typical one, but I admit that would have to be some VERY valuable ore to justify going to Mars to get it...

egads. I assume rockets not supposed to actually launch have no FTS installed....

Yeah, I suspect like many frontier crossings, once the initial pilgramage is made, and the way paved and the manner cross it viable/feasible, there it will be become self sustaining, although as @JB47394 points out, that takes finding thr "killer app"... it's defintely not a done deal, there's...

I don't really think it matters where he became aware of the information... the fact that the conclusions he draws about the ESA's recent accomplishments in light of their stance a decade ago are much the same lends credence that folks familiar with space gongs-on don't necessarily think it's a...

Good questions... but it's interesting that, unlike certain billionaires who have started rocket companies and have thus far only joyrides to show for the $$billions they've personally funded, Elon has found a way to fund his rocket development profitably, even if it meant starting another...

Interestingly, in Manley's Deep Space Update for this week, he makes essentially the same point Berger did: within the last few days the ESA folks once again dismissed the need/value of reusability... So Berger isn't exactly on an island here...

Fair enough... I should have looked up his other philanthropic efforts I was unaware of. So more hyperbole than anything... so while he mayhave environmental concerns, he's also not above using "lawfare" tactics... as he's seemed to use in the past. He may be and have done.. but even so...

Perhaps. I could also see ramped up lauch cadence allowing for design with standardized components or interfaces, as they know a service mission can go up every couple of years, so using a cheaper standardized component... And to your point, that's not salvage.... but it wasn't mine either...

agreed. And, in reality, the lift capability is not in the same class as Starship, so the point they made about Starship not being a competitive factor has some merit... although things like rideshare missions may compete for the same payloads somewhat. Berger's point was more that their...

He started with the background of the 10 yr old article in order to make the point in the headline, they STILL dont get it based on the comments made June 24 (3 days ago), where they once again dismissed SpaceX, just like they did 10 years ago... Given the fact that SpaceX is doing what they...

Sure. But Jeffrey and the boys to all of the sudden be environmental conservationists seems a tad intereting, given they are getting whooped in the rocket biz, and they used simialr tactics in the past. Like I said, I see ULA's concern as more genuine. Hard disagree. Elon's not a saint, I'm...

I wasn't talking about salvage... the last part of my sentence you didn't include asked if those things justified developing standardized components.

I'm sure they have development versions running in house... and regardless they will have it for CT, so by the time it's ready for license to others, it will already have to have hardware agnosticism to some extent.

It's possible that FSD that Tesla licenses to others would include an abstraction layer that would allow for different hardware. Today, FSD is available for Model S, which is CANBUS based (I think it has 6 or so), Model 3/Y which also has CANBUS, but may have have proprietary controllers(?)...

It feels like standardization at the module level has happened to some degree for "environments" like the ISS. It would be interesting to see if that could be extended to allow a common module to work both in orbit as well as on a planet surface, etc.. like you mention. And then for the...

"Category 5 Breeze"??

I dunno, a strategic directional fumble that could jeopardize a multi-billion dollar project is something that seems to warrant comment by folks in lots of places...

I agree it has impact... however I think Jeffry and B.O. being so "concerned" about the environmental impact all of the sudden is more likely "lawfare", as Elon put it. I give more credence to Bruno and ULA's filings because of the potential operational impact, as you mention and I said above...

SADS (Spacecraft Active Deorbit System)

Oh, and incidentally, I know NASA has opted to not do an orbital lift for Hubble at the moment, but that's the project I'd really like to see...

Agree with both of these... too little bang for the buck given the age/deterioration, custom design, and cost to salvage. That having been said, with the cost/access to space going down, and the intent to continue that trend, as well as increase launch cadence, I wonder at what point it will be...

Ah, ok.. thanks.

I suspect that however he deludes himself, in moments of honest clarity he knows he's behind. I'll give you the "weird" though... All of that having been said, apparently the folks within the potential blast radius would have to vacate whenever Starship tanks up, which would seem to affect ULA...

Yup. And tried to block SpaceX from using LC-39A. Musk's response:

And not to be left out of the foot-stomping... ULA made sure to get in on the action:

Kudos for following up to revise as more data emerges.

*SIGH* Jeffrey, your envious side is showing again...

Missed it... watching the replay... indeed some cool shots. The sync'd 180 deg opposite orientation booster boost back startups at altitude was cool. Love those dual landings... Also, they mentioned a new fairing... we know anything about it?

Ah ok... so it is from him.... and hundreds, not just 40-50.... Well, with the cadence they're planning for, that might only be a yr or so lol...