{"id":13931,"date":"2018-03-20T23:32:02","date_gmt":"2018-03-20T15:32:02","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/ula-touts-new-vulcan-rocket-in-competition-with-spacex\/"},"modified":"2018-03-20T23:32:02","modified_gmt":"2018-03-20T15:32:02","slug":"ula-touts-new-vulcan-rocket-in-competition-with-spacex","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/ula-touts-new-vulcan-rocket-in-competition-with-spacex\/","title":{"rendered":"ULA touts new Vulcan rocket in competition with SpaceX"},"content":{"rendered":"<p>STORY WRITTEN FOR&nbsp;CBS NEWS&nbsp;&amp; USED WITH PERMISSION<\/p>\n<figure id=\"attachment_31105\" aria-describedby=\"caption-attachment-31105\" style=\"width: 1200px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-31105\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/vulcan.jpg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/vulcan.jpg 1200w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/vulcan-300x169.jpg 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/vulcan-768x432.jpg 768w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/vulcan-678x381.jpg 678w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"><figcaption id=\"caption-attachment-31105\" class=\"wp-caption-text\">Artist\u2019s illustration of a Vulcan rocket launching from Cape Canaveral. Credit: United Launch Alliance<\/figcaption><\/figure>\n<p>SpaceX and its visionary founder Elon Musk win the lion\u2019s share of public attention in the commercial rocket arena, with dramatic, increasingly routine booster landings and spectacular stunts like the launch of Musk\u2019s Tesla Roadster on the maiden flight of the company\u2019s new Falcon Heavy rocket last month.<\/p>\n<p>But arch-rival United Launch Alliance, a much more buttoned-down corporate alliance between Boeing and Lockheed Martin, is responding to the threat posed by the upstart SpaceX with long-range plans to phase out its workhorse Atlas 5 rocket and costly Delta 4 rockets in favor of a powerful, less-expensive launcher known as the Vulcan.<\/p>\n<p>Featuring reusable engines and an advanced, long-lived upper stage, company executives expect the Vulcan to be a major contender in the increasingly fierce slugfest between SpaceX, ULA and other international launch providers.<\/p>\n<p>That battle was center stage Wednesday when the Air Force awarded SpaceX a $290 million contract to launch three Global Positioning System navigation satellites atop Falcon 9 rockets in late 2019 and 2020.<\/p>\n<p>At the same time, ULA won a $351 million contract to launch two Space Situational Awareness Program satellites using an Atlas 5 rocket in 2020, along with a second flight to launch another pair of military payloads.<\/p>\n<p>\u201cI am a big supporter of competition,\u201d ULA CEO Tory Bruno said in a recent interview. \u201cMakes it an exciting time to be in space, you never know what\u2019s going to happen. In my 35 years as a rocket scientist I never thought I\u2019d see somebody just launch a car into space for fun. I\u2019m not sure what I think of that yet. So yeah I\u2019m with you. These are exciting times.\u201d<\/p>\n<p>In one sense, ULA is playing the tortoise to SpaceX\u2019s hare. Musk was first out of the blocks with development of reusable rocket boosters, but Bruno believes ULA\u2019s Vulcan, with reusable first stage engines, makes the most sense financially given current market projections.<\/p>\n<p>He said the Vulcan\u2019s engines represent two-thirds of the cost of the stage. Under ULA\u2019s approach, the engines will be recovered and reused after every flight. SpaceX\u2019s design calls for recovery of the entire rocket stage. Depending on the weight of the payload and the requirements of its orbit, that cannot be done on every flight.<\/p>\n<p>\u201cIt boils down to as simple as this: is it better to recover 100 percent of the value of the booster some of the time or only two thirds of the value of the booster all of the time?\u201d Bruno said reporters during a roundtable discussion earlier this week.<\/p>\n<p>\u201cWell, that depends on how often you get a big, heavy payload. We\u2019ve each made market forecasts, and if we\u2019re right, our solution will be economically advantageous. If I\u2019m wrong and they\u2019re right, then theirs will.\u201d<\/p>\n<p>ULA is staking its future on the Vulcan. Equipped with up to six upgraded strap-on solid-fuel boosters, the new rocket will generate some 3.8 million pounds of liftoff thrust.<\/p>\n<figure id=\"attachment_24049\" aria-describedby=\"caption-attachment-24049\" style=\"width: 675px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-24049\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2017\/04\/26394427005_b7f8d8b08d_k.jpg\" alt=\"\" width=\"675\" height=\"450\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2017\/04\/26394427005_b7f8d8b08d_k.jpg 675w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2017\/04\/26394427005_b7f8d8b08d_k-300x200.jpg 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2017\/04\/26394427005_b7f8d8b08d_k-30x20.jpg 30w\" sizes=\"(max-width: 675px) 100vw, 675px\"><figcaption id=\"caption-attachment-24049\" class=\"wp-caption-text\">ULA chief executive Tory Bruno. Credit: Space Foundation<\/figcaption><\/figure>\n<p>Out-performing ULA\u2019s current heavy lift booster, the three-core Delta 4, the Vulcan will be able to boost 80,000 pounds to low-Earth orbit or up to 35,900 pounds to the elliptical geosynchronous transfer orbits \u2014 GTOs \u2014 used by communications satellites bound for operational stations 22,300 above the equator.<\/p>\n<p>The least powerful version of the new rocket, one without any solid-fuel boosters and an advanced upper stage known as ACES, is expected to sell for less than $100 million. The base version of ULA\u2019s Atlas 5 rocket currently goes for about $109 million, Bruno said, while a heavy lift Delta 4 sells for about $350 million.<\/p>\n<p>Even with six solid-fuel boosters and a large payload fairing, the most powerful version of the Vulcan will still cost \u201cmore like a quarter or a third of the cost of the Delta 4 Heavy,\u201d Bruno said in the interview with CBS News.<\/p>\n<p>For comparison, SpaceX sells a commercial version of its Falcon 9 rocket for $62 million, according to the company\u2019s website, although the price climbs to more than $90 million a copy for military missions.<\/p>\n<p>A commercial version of the company\u2019s Falcon Heavy rocket, which debuted in February, has a list price of $90 million, but that apparently assumes all three core stages are recovered for reuse. That version of the rocket, according to the SpaceX website, can boost eight metric tons, or 17,600 pounds to geosynchronous transfer orbit.<\/p>\n<p>That\u2019s the version launched last month, roughly equivalent, Bruno said, to a \u201cmid-range Atlas.\u201d A fully expendable version of the Falcon Heavy can lift nearly 59,000 pounds to that same orbit, easily making it the most powerful rocket in the world.<\/p>\n<p>Bruno said he was impressed by the Falcon Heavy and SpaceX\u2019s maturing ability to recover spent rocket stages.<\/p>\n<p>\u201cI\u2019m a rocket scientist, and that was very cool to watch,\u201d he said. \u201cI certainly give credit to Elon Musk for sort of creating more excitement around space than we had a decade ago.\u201d<\/p>\n<p>But this is not a particularly friendly competition. SpaceX\u2019s website brags the Falcon Heavy \u201ccan lift more than twice the payload of the next closest operational vehicle, the Delta IV Heavy, at one-third the cost.\u201d<\/p>\n<p>Not so fast, says Bruno.<\/p>\n<p>\u201cDelta Heavy was really designed around the national security, primarily NRO (National Reconnaissance Office) mission set, which has complicated orbits, and it\u2019s optimized for that,\u201d he said. \u201cIt goes for about $350 million. It\u2019s a military mission only, I don\u2019t offer it commercially, at least today, there\u2019s no commercial market for a Heavy.\u201d<\/p>\n<p>The Delta 4, designed by Boeing, and the Atlas 5, built by Lockheed Martin, originally were developed for the Air Force as \u201cevolved expendable launch vehicles,\u201d or EELVs, intended to provide assured access to space for high-priority national security payloads.<\/p>\n<p>With government approval, the two companies formed a partnership and the first Atlas 5, carrying a commercial satellite, blasted off in August 2002.<\/p>\n<p>SpaceX launched its first Falcon 9 in 2010 and, after Air Force certification and vocal complaints about ULA\u2019s perceived monopoly in the military space arena, the California rocket builder was cleared to compete for military contracts.<\/p>\n<p>\u201cWe\u2019ve been competing now for almost two years in the military market space,\u201d Bruno said before this week\u2019s Air Force contracts were announced. \u201cFalcon 9s are going for about $97 million, $96.5 million, I think, is the most recent one. They\u2019ve won half, we\u2019ve won half. The government discloses the winner\u2019s price because we\u2019re public procurements. So I think we each know what our prices are.\u201d<\/p>\n<figure id=\"attachment_30417\" aria-describedby=\"caption-attachment-30417\" style=\"width: 900px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-30417\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/02\/WVWS_Falcon-Heavy-Demo-4430.jpg\" alt=\"\" width=\"900\" height=\"600\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/02\/WVWS_Falcon-Heavy-Demo-4430.jpg 900w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/02\/WVWS_Falcon-Heavy-Demo-4430-300x200.jpg 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/02\/WVWS_Falcon-Heavy-Demo-4430-768x512.jpg 768w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/02\/WVWS_Falcon-Heavy-Demo-4430-678x452.jpg 678w\" sizes=\"(max-width: 900px) 100vw, 900px\"><figcaption id=\"caption-attachment-30417\" class=\"wp-caption-text\">The Falcon Heavy rocket takes off on its first test flight. Credit: Walter Scriptunas II \/ Spaceflight Now<\/figcaption><\/figure>\n<p>To compare the Falcon Heavy with the Delta 4, \u201cyou want to compare government missions,\u201d he said. \u201cWe don\u2019t market (the Delta 4) commercially. So I would look at the Falcon 9 at $96.5 million as a single stick. Scale that up to be a Falcon Heavy, which is a three-core version of that rocket, and whatever that price is is what I would compare to $350 million.<\/p>\n<p>\u201cIf you want to take a massively large payload to LEO (low-Earth orbit), that would be the rocket that would do it. If you want to go higher, you might want to fly on a Delta 4.\u201d<\/p>\n<p>But a Falcon Heavy is not made up of three Falcon 9s. It is, more accurately, one Falcon 9 with a modified central stage and two additional Falcon 9 core stages.<\/p>\n<p>SpaceX has said a fully expendable version of the Falcon Heavy, one capable of boosting nearly 59,000 pounds to GTO, would cost around $150 million, less than half the cost of a Delta 4 Heavy.<\/p>\n<p>But ULA says a rocket\u2019s cost is just one factor in a sale. The company also is selling reliability and \u201cschedule certainty.\u201d<\/p>\n<p>ULA has launched 76 Atlas 5 rockets and 36 more expensive Delta 4s without a single failure. SpaceX has suffered one catastrophic in-flight failure in 50 Falcon 9 launches to date and one on-the-pad explosion.<\/p>\n<p>A rocket\u2019s reliability affects insurance rates and meeting a promised launch date means a commercial satellite will start generating revenue as soon as possible. ULA says both of those factors act to reduce the actual cost of a launch on one of its rockets.<\/p>\n<p>Another wild card in the equation is SpaceX\u2019s plan to build an even more powerful rocket known as the BFR, for Big F-ing Rocket, intended for eventual missions to Mars. It is not yet clear where the Falcon Heavy fits into the company\u2019s long-range plans or whether the BFR will be used for the sorts of payloads ULA hopes to launch on its Vulcan.<\/p>\n<p>But the Delta 4-Falcon Heavy debate will be moot soon enough as ULA phases out the Delta 4 and the Atlas 5 in favor of the Vulcan. Bruno said \u201cat least\u201d seven to eight more Delta 4s will be launched between now and the early 2020s while the Atlas 5 likely will fly into the mid 2020s, overlapping with the Vulcan program as the new rocket begins operational flights.<\/p>\n<p>In the meantime, the Atlas 5 also will be used to launch Boeing\u2019s CST-100 commercial crew ship on flights to ferry astronauts to and from the International Space Station. SpaceX also holds a NASA contract to develop a piloted version of its Dragon cargo ship that will launch atop a Falcon 9. Both companies hope to begin routine flights to the station next year.<\/p>\n<p>The maiden flight of the Vulcan currently is targeted for the middle of 2020. Two successful commercial launches are required as part of the government certification process, followed by a required upper stage upgrade to improve performance, either Aerojet Rocketdyne RL10 engines or a different set of engines altogether.<\/p>\n<p>If all goes well, ULA will introduce its new upper stage in 2024, the Advanced Cryogenic Evolved Stage, or ACES, that Bruno says will revolutionize spaceflight.<\/p>\n<figure id=\"attachment_31108\" aria-describedby=\"caption-attachment-31108\" style=\"width: 500px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-31108\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/aces.jpg\" alt=\"\" width=\"500\" height=\"486\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/aces.jpg 493w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/aces-300x291.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\"><figcaption id=\"caption-attachment-31108\" class=\"wp-caption-text\">United Launch Alliance\u2019s ACES upper stage. Credit: United Launch Alliance<\/figcaption><\/figure>\n<p>\u201cThis is on the scale of inventing the airplane,\u201d Bruno told reporters during the media roundtable. \u201cThat\u2019s how revolutionary this upper stage is. It\u2019s 1900, and I\u2019m inventing the airplane. People don\u2019t even know what they\u2019re going to do with it yet. But I\u2019m confident it\u2019s going to create a large economy in space that doesn\u2019t exist today. No one is working on anything like this.\u201d<\/p>\n<p>The Vulcan will stand 228 feet tall with a first stage powered by two engines provided by either Blue Origin, a company owned by Amazon-founder Jeff Bezos, or Aerojet Rocketdyne. Blue Origin\u2019s BE-4 engine burns methane and liquid oxygen while Aerojet Rocketdyne\u2019s AR-1 powerplant burns a more traditional mixture of oxygen and highly refined kerosene.<\/p>\n<p>Both engines will generate between 500,000 and 550,000 pounds of thrust and two will be used to power the Vulcan\u2019s first stage. Bruno said ULA is nearing a decision on which engine to employ but would not provide any sort of timetable other than to say the company would announce its choice \u201csoon.\u201d<\/p>\n<p>\u201cThey\u2019re both good engines,\u201d he told CBS News. \u201cThey both use the what we think of as a very advanced Russian engine cycle, an oxygen-rich stage combustion that the U.S. has never, ever had, and we now will. They just use two different hydrocarbon fuels as you know, one is kerosene and one is methane.\u201d<\/p>\n<p>Both engines \u201chave a lot of additive manufacturing content, which takes that Russian technology and makes it a lot more manufacturable and really updates it to modern standards. So they were both good engines. They are both, you know, hitting their marks and where they planned to be. That\u2019s probably all I can say.\u201d<\/p>\n<p>Whichever engines are used, the Vulcan first stage is being designed with reusability in mind. But unlike SpaceX, which can recover it\u2019s Falcon 9 first stage intact with a rocket-powered return to landing on shore or on an off-shore droneship, ULA only plans to recover the Vulcan\u2019s first stage engines.<\/p>\n<p>ULA plans to begin engine recovery operations after the Vulcan is routinely flying and after the ACES upper stage is implemented.<\/p>\n<p>Bruno said the engines represent two-thirds of the cost of the stage and getting them back every time, with no impact on mission performance, will pay big dividends. SpaceX, in contrast, must use propellant to fly its Falcon 9 stages back to touchdown. Heavy payloads bound for high orbits require most if not all of the rocket\u2019s propellant and in those cases, recovery may not be possible.<\/p>\n<p>As a result, SpaceX\u2019s ability to recover rocket stages depends on its manifest and the orbital demands of those payloads.<\/p>\n<figure id=\"attachment_31109\" aria-describedby=\"caption-attachment-31109\" style=\"width: 849px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31109\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/Screen-Shot-2018-03-20-at-1.55.54-PM.png\" alt=\"\" width=\"849\" height=\"478\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/Screen-Shot-2018-03-20-at-1.55.54-PM.png 849w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/Screen-Shot-2018-03-20-at-1.55.54-PM-300x169.png 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/Screen-Shot-2018-03-20-at-1.55.54-PM-768x432.png 768w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2018\/03\/Screen-Shot-2018-03-20-at-1.55.54-PM-678x381.png 678w\" sizes=\"auto, (max-width: 849px) 100vw, 849px\"><figcaption id=\"caption-attachment-31109\" class=\"wp-caption-text\">ULA\u2019s concept for reusing booster engines involves retrieving the engines by a helicopter in mid-air. Credit: United Launch Alliance<\/figcaption><\/figure>\n<p>\u201cSimplistically, if you recover the old booster propulsively then you can do that part of the time, you get all the value back some of the time,\u201d Bruno said. \u201cOr, you can recover just the engine, which is our concept, and then you get only part of the value back, about two thirds \u2026 but you get to do it every single time because there\u2019s no performance hit. So it really turns into math.\u201d<\/p>\n<p>And that math is based on market projections about future satellite builds and the percentage of heavy-weight payloads ULA expects to be launching.<\/p>\n<p>\u201cWe\u2019ve made a forecast of what we think the future marketplace will be and said engine recovery is more financially attractive,\u201d Bruno said. \u201cI think SpaceX has made different calculus. And we\u2019ll both go to the market and find out who\u2019s right.\u201d<\/p>\n<p>To recover the Vulcan engines, a small pod housing an inflatable heat shield and a gas generator will be mounted on the bottom of the first stage. After boosting the rocket out of the lower atmosphere, the engines will shut down and the propulsion section will be disconnected, allowing it to fall free.<\/p>\n<p>The heat shield, based on NASA technology, then will inflate using the gas generator, protecting the engines from the heat and stress of atmospheric entry. Once clear of the plasma heating region, a parafoil will deploy to fly the engines to their planned pickup point.<\/p>\n<p>A large helicopter then will swoop overhead, snagging a cable to capture the engine package, which will be lowered to the deck of a nearby salvage ship. A similar technique was used to capture film canisters ejected from Corona spy satellites in the 1960s.<\/p>\n<p>\u201cWe\u2019ll separate really the whole back end (of the first stage),\u201d Bruno said. \u201cThen, we\u2019re going to re-enter it behind the NASA inflatable heat shield and then pop a parachute, really a parafoil, because that allows us to make sure we fly to GPS coordinates and a big helicopter will be waiting for it and snag it set it down.\u201d<\/p>\n<p>Recovering the engines non-propulsively will allow the Vulcan to use virtually all of its propellant to put the payload into the best possible orbit \u201cfor a pretty modest weight penalty, you know, the weight of a parachute, the weight of the subsystem,\u201d Bruno said.<\/p>\n<p>For a booster, five pounds of inert weight only costs one pound of payload, he added, whereas it\u2019s pound for pound on an upper stage.<\/p>\n<p>In any case, Bruno said the entry environment behind the heat shield is much more benign than what a Falcon 9 experiences with its tail-first propulsive descent and ULA engineers expect engine refurbishment to be a relatively straight forward affair.<\/p>\n<p>\u201cThe engines that we\u2019re developing we think are going to be pretty easy to refurbish,\u201d Bruno said. \u201cWhat we think we\u2019re going to do is get them back, inspect them, for the first few times we\u2019ll likely hot fire them to make sure we know how they\u2019re behaving. If they\u2019re behaving the way we expect, we\u2019ll probably stop doing that. We\u2019ll just clean them up, inspect them and use them.\u201d<\/p>\n<p>Along with recoverable first stage engines, the Vulcan first stage features redesigned plumbing with an internal liquid oxygen feed line, freeing up real estate on the side of the rocket for a sixth strap-on solid-fuel booster.<\/p>\n<p>The Vulcan will be marketed in a variety of configurations depending on payload requirements. If all six SRBs are used, liftoff thrust will be 3.8 million pounds, out performing the Delta 4.<\/p>\n<p>ULA has not yet announced which company will provide the upper stage engines used for the rocket\u2019s initial flights before a planned performance upgrade. But the company expects to introduce the ACES upper stage in 2024.<\/p>\n<p>Featuring up to four hydrogen-fueled rocket engines, ACES will carry three times the propellant of current ULA upper stages, will be able to operate for weeks or months at a time and will enable complex orbital operations near Earth, the moon or beyond.<\/p>\n<p>The keys to its performance are ultra lightweight propellant tanks and dual \u201cstraight-six\u201d internal combustion engines mounted on the bottom of the stage burning gaseous oxygen and hydrogen produced by the normal \u201cboil off\u201d of propellants in the main tanks.<\/p>\n<p>The 1,000-cc engines, under development at Roush Fenway Racing, will be used to pressurize the propulsion system, push propellants to attitude control jets and generate electrical power, allowing ULA to replace multiple systems with a single solution.<\/p>\n<p>\u201cIn a conventional stage, you\u2019ve got to have electrical power, so you have big, long-duration batteries,\u201d Bruno said. \u201cYou have to have an attitude control system, so you have typically an entirely separate propulsion system, usually hydrazine. And then you need to pressurize your propellant, which you use (helium) to do.\u201d<\/p>\n<p>Such stages typically have lifetimes measured in hours because the supercold propellants are continually boiling off into gas and batteries lose their power.<\/p>\n<p>ACES solves those problems by using the internal combustion engines to accomplish all of those tasks over an extended period.<\/p>\n<p>\u201cThe engine has a generator on it just like your car does so you don\u2019t need the batteries anymore,\u201d Bruno said. \u201cAnd we\u2019re using the power that comes off of that internal combustion engine to run a compressor and a heat exchanger \u2026 that\u2019s putting energy back into the gases. We pipe them back up into the tank and that pressurizes the tanks. So we don\u2019t need helium at all anymore.\u201d<\/p>\n<p>Or heavy time-limited batteries.<\/p>\n<p>\u201cEach one of these (generators) throws off about 60 kilowatts,\u201d Bruno said. \u201cWe run a Centaur (stage) at about 10 watts. So now you\u2019ve got 120 kilowatts of electrical power that you could use for other things.\u201d<\/p>\n<p>And the same waste hydrogen and oxygen burned by the engines also can be used to power the stage\u2019s attitude control thrusters, eliminating the need for a separate propulsion system using toxic hydrazine.<\/p>\n<p>\u201cSo as long as you\u2019ve got all of this gaseous hydrogen and gaseous oxygen you have propellant,\u201d Bruno said. \u201cSo we\u2019ve also developed (oxygen-hydrogen) thrusters and we\u2019ve been testing those as well. They provide the attitude control and \u2026 that allows us to delete the entire hydrazine system.<\/p>\n<p>\u201cSo that\u2019s how it works. We\u2019ve probably got, I\u2019d say 300, 350 tests on that engine now. It\u2019s pretty cool.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>STORY WRITTEN FOR&nbsp;CBS NEWS&nbsp;&amp; USED WITH PERMISSION Artist\u2019s illustration of a Vulcan rocket launching from Cape Canaveral. Credit: United Launch Alliance SpaceX and its visionary founder Elon Musk win the lion\u2019s share of public attention in the commercial rocket arena, with dramatic, increasingly routine booster landings and spectacular stunts like the launch of Musk\u2019s Tesla [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[3010,291,25,311,875,750,364],"class_list":["post-13931","post","type-post","status-publish","format-standard","hentry","category-news","tag-aces","tag-commercial-space","tag-launch","tag-reusability","tag-tory-bruno","tag-united-launch-alliance","tag-vulcan"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/13931"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=13931"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/13931\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=13931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=13931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=13931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}