The "billionaire slapfight" just turned officially into a boxing match.But then, there's Elon's announcement of his Mars initiative this month as well--if the AMOS investigation does not derail it.Either way, I want tickets.
Quote from: Lars-J on 09/12/2016 04:32 pmI wonder how ULA feels about this? This seems like a vehicle that could cover virtually all Vulcan payloads.If the two-engine rocket can lift the payload, it beats the seven-engine rocket on cost every time. (Assuming the same engines, as in this case). - Ed Kyle
I wonder how ULA feels about this? This seems like a vehicle that could cover virtually all Vulcan payloads.
Is it possible the thing is so large because they've designed for easy reusability, with a large mass penalty as a result? Payload to LEO not 40 tons but 10-20 t, with no refurb between flights?
Quote from: edkyle99 on 09/12/2016 03:51 pmQuote from: Bynaus on 09/12/2016 03:44 pmI have tried to estimate the payload mass, and I get something like 60 tons for the two-stage version with some reasonable (I hope) guesstimates on things we do not know (structural mass, specific impulse of BE-4, etc.). I attach the spreadsheet for support, comments welcome.I doubt they would get 0.95 propellant ratios with the big tanks needed for this low-density propellant. I estimated 0.90. Also, they are using staged combustion engines, which weigh a bit more than gas generator engines for the same thrust. - Ed KyleMethane is not "low-density", it's MUCH denser than hydrogen and only slightly less dense than kerosine.Something like 0.93 should not be a problem, and 0.9 is defieteely too low estimation.And the mass overhead of SC engines should only be like few tonnes maximum, so the effect of that is like 0.002..0.003 when the stage weights about 1000 tonnes.
Quote from: Bynaus on 09/12/2016 03:44 pmI have tried to estimate the payload mass, and I get something like 60 tons for the two-stage version with some reasonable (I hope) guesstimates on things we do not know (structural mass, specific impulse of BE-4, etc.). I attach the spreadsheet for support, comments welcome.I doubt they would get 0.95 propellant ratios with the big tanks needed for this low-density propellant. I estimated 0.90. Also, they are using staged combustion engines, which weigh a bit more than gas generator engines for the same thrust. - Ed Kyle
I have tried to estimate the payload mass, and I get something like 60 tons for the two-stage version with some reasonable (I hope) guesstimates on things we do not know (structural mass, specific impulse of BE-4, etc.). I attach the spreadsheet for support, comments welcome.
New update from Jeff Bezos regarding the announcement of a new orbital rocket, New Glenn (image attached):QuoteOur mascot is the tortoise. We paint one on our vehicles after each successful flight. Our motto is “Gradatim Ferociter” – step by step, ferociously. We believe “slow is smooth and smooth is fast.” In the long run, deliberate and methodical wins the day, and you do things quickest by never skipping steps. This step-by-step approach is a powerful enabler of boldness and a critical ingredient in achieving the audacious. We’re excited to give you a preview of our next step. One we’ve been working on for four years. Meet New Glenn:Introducing New Glenn: Reusable, vertical-landing booster, 3.85 million pounds thrustBuilding, flying, landing, and re-flying New Shepard has taught us so much about how to design for practical, operable reusability. And New Glenn incorporates all of those learnings.Named in honor of John Glenn, the first American to orbit Earth, New Glenn is 23 feet in diameter and lifts off with 3.85 million pounds of thrust from seven BE-4 engines. Burning liquefied natural gas and liquid oxygen, these are the same BE-4 engines that will power United Launch Alliance’s new Vulcan rocket.The 2-stage New Glenn is 270 feet tall, and its second stage is powered by a single vacuum-optimized BE-4 engine. The 3-stage New Glenn is 313 feet tall. A single vacuum-optimized BE-3 engine, burning liquid hydrogen and liquid oxygen, powers its third stage. The booster and the second stage are identical in both variants.We plan to fly New Glenn for the first time before the end of this decade from historic Launch Complex 36 at Cape Canaveral, Florida. New Glenn is designed to launch commercial satellites and to fly humans into space. The 3-stage variant – with its high specific impulse hydrogen upper stage – is capable of flying demanding beyond-LEO missions.Our vision is millions of people living and working in space, and New Glenn is a very important step. It won’t be the last of course. Up next on our drawing board: New Armstrong. But that’s a story for the future.Gradatim Ferociter!Jeff Bezos
Our mascot is the tortoise. We paint one on our vehicles after each successful flight. Our motto is “Gradatim Ferociter” – step by step, ferociously. We believe “slow is smooth and smooth is fast.” In the long run, deliberate and methodical wins the day, and you do things quickest by never skipping steps. This step-by-step approach is a powerful enabler of boldness and a critical ingredient in achieving the audacious. We’re excited to give you a preview of our next step. One we’ve been working on for four years. Meet New Glenn:Introducing New Glenn: Reusable, vertical-landing booster, 3.85 million pounds thrustBuilding, flying, landing, and re-flying New Shepard has taught us so much about how to design for practical, operable reusability. And New Glenn incorporates all of those learnings.Named in honor of John Glenn, the first American to orbit Earth, New Glenn is 23 feet in diameter and lifts off with 3.85 million pounds of thrust from seven BE-4 engines. Burning liquefied natural gas and liquid oxygen, these are the same BE-4 engines that will power United Launch Alliance’s new Vulcan rocket.The 2-stage New Glenn is 270 feet tall, and its second stage is powered by a single vacuum-optimized BE-4 engine. The 3-stage New Glenn is 313 feet tall. A single vacuum-optimized BE-3 engine, burning liquid hydrogen and liquid oxygen, powers its third stage. The booster and the second stage are identical in both variants.We plan to fly New Glenn for the first time before the end of this decade from historic Launch Complex 36 at Cape Canaveral, Florida. New Glenn is designed to launch commercial satellites and to fly humans into space. The 3-stage variant – with its high specific impulse hydrogen upper stage – is capable of flying demanding beyond-LEO missions.Our vision is millions of people living and working in space, and New Glenn is a very important step. It won’t be the last of course. Up next on our drawing board: New Armstrong. But that’s a story for the future.Gradatim Ferociter!Jeff Bezos
Quote from: Ragmar on 09/12/2016 01:17 pmNew update from Jeff Bezos regarding the announcement of a new orbital rocket, New Glenn (image attached):QuoteOur mascot is the tortoise. We paint one on our vehicles after each successful flight. Our motto is “Gradatim Ferociter” – step by step, ferociously. We believe “slow is smooth and smooth is fast.” In the long run, deliberate and methodical wins the day, and you do things quickest by never skipping steps. This step-by-step approach is a powerful enabler of boldness and a critical ingredient in achieving the audacious. We’re excited to give you a preview of our next step. One we’ve been working on for four years. Meet New Glenn:Introducing New Glenn: Reusable, vertical-landing booster, 3.85 million pounds thrustBuilding, flying, landing, and re-flying New Shepard has taught us so much about how to design for practical, operable reusability. And New Glenn incorporates all of those learnings.Named in honor of John Glenn, the first American to orbit Earth, New Glenn is 23 feet in diameter and lifts off with 3.85 million pounds of thrust from seven BE-4 engines. Burning liquefied natural gas and liquid oxygen, these are the same BE-4 engines that will power United Launch Alliance’s new Vulcan rocket.The 2-stage New Glenn is 270 feet tall, and its second stage is powered by a single vacuum-optimized BE-4 engine. The 3-stage New Glenn is 313 feet tall. A single vacuum-optimized BE-3 engine, burning liquid hydrogen and liquid oxygen, powers its third stage. The booster and the second stage are identical in both variants.We plan to fly New Glenn for the first time before the end of this decade from historic Launch Complex 36 at Cape Canaveral, Florida. New Glenn is designed to launch commercial satellites and to fly humans into space. The 3-stage variant – with its high specific impulse hydrogen upper stage – is capable of flying demanding beyond-LEO missions.Our vision is millions of people living and working in space, and New Glenn is a very important step. It won’t be the last of course. Up next on our drawing board: New Armstrong. But that’s a story for the future.Gradatim Ferociter!Jeff BezosSimple question: Where in the heck are they going to build the New Glenn? It needs something like a VAB for its size and horizontal integration would seem impossible for its mass. If they leased a VAB bay, there's a very long trip down the road to the pad.
Quote from: edkyle99 on 09/12/2016 04:38 pmQuote from: Lars-J on 09/12/2016 04:32 pmI wonder how ULA feels about this? This seems like a vehicle that could cover virtually all Vulcan payloads.If the two-engine rocket can lift the payload, it beats the seven-engine rocket on cost every time. (Assuming the same engines, as in this case). - Ed KyleBut the immediate plans of reuse complicate the costing for this vehicle. Such that its per flight costs could equal or even be lower than the Vulcan. Therefore costs do not follow the more engines more cost per flight model.[note estemates are very very rough and are to give some sense of the relative cost values]Vulcan estimate for booster costs ~$35MNew Glen estimate for booster costs ~$70MBut with 20 flights cost of the booster is only ~$4M/flight + refurbishment costs.This is where BO could eat ULA's lunch. Actually also SpaceX too. The New Glen 2nd stage is a candidate for reuse itself. In use with a manned capsule the New Glen could evolve quickly into a Vulcan (0 solids) payload size vehicle (16mt to LEO) that is fully reusable. $5M per person to orbit possible with such a stack.
Simple question: Where in the heck are they going to build the New Glenn? It needs something like a VAB for its size and horizontal integration would seem impossible for its mass. If they leased a VAB bay, there's a very long trip down the road to the pad.
I wonder how ULA feels about this? This seems like a vehicle that could cover virtually all Vulcan payloads.With New Glenn, Vulcan, and Falcon Heavy, the US now has three LVs in development (some closer than others) that will all compete for the crown of heaviest lifting LV in the world.
America has three SHLV on the horizon, with China close behind, and Russia/India in the weeds. The likelihood of large scale reusable launch dominating more than 51% of total global launch capacity is extremely high now, so strategic NSS "competition" will depend upon its dominance at some point, which is not lost on policy makers, however craven they wish they could be. Congratulations Jeff Bezos and Blue Origin, for committing yourselves to a grand vision for that fierce incrementalism to chew on!
Quote from: Hobbes-22 on 09/12/2016 04:55 pmIs it possible the thing is so large because they've designed for easy reusability, with a large mass penalty as a result? Payload to LEO not 40 tons but 10-20 t, with no refurb between flights?In that case you'd expect it to be intended for frequent flights, but the launch site docs claim it's only meant for up to 12 launches a year.
Quote from: Kryten on 09/12/2016 04:59 pmIn that case you'd expect it to be intended for frequent flights, but the launch site docs claim it's only meant for up to 12 launches a year.No problem. Build four of them and make it once a week.
In that case you'd expect it to be intended for frequent flights, but the launch site docs claim it's only meant for up to 12 launches a year.
It's getting ridiculous over here.
Quote from: Robotbeat on 09/12/2016 05:41 pmIt's getting ridiculous over here.Exactly . . . I wonder how big cost-savings are we actually going to get. Reusable rockets don't get much cheaper with low flight rates, and that many that big rockets are going to tear current launch market to shreds . . . it's starting to feel like market bubble. Even if (!) the mega-constellations and Mars colony bootstrapping become real in the 20's.
Quote from: Lars-J on 09/12/2016 04:32 pmI wonder how ULA feels about this? This seems like a vehicle that could cover virtually all Vulcan payloads.With New Glenn, Vulcan, and Falcon Heavy, the US now has three LVs in development (some closer than others) that will all compete for the crown of heaviest lifting LV in the world.Five.BFR and SLS. And eventually six, as Blue Origin pursues New Armstrong. All more powerful than anything else under development anywhere else. And all but one of them with at least partial reuse.It's getting ridiculous over here.
ULA and Blue have publicly talked about this before. They say they are targeting different markets.