![\"2016-07-11-134829\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-11-134829-350x230.jpg\")
According to DARPA\u2019s presentation, the Pegasus, Minotaur, and Antares launch vehicles only fly one DoD mission per year at a cost of ~$55 million USD per flight.<\/p>\nCiting increasing U.S. launch costs and the \u201cfleeing\u201d of commercial customers to foreign launch service providers, the Defense Advanced Research Projects Agency (DARPA) is continuing to push a bold strategy tied to a new, reusable spaceplane that the Agency envisions flying 10 times in 10 days for a cost of less than $5 million USD per flight.\n<\/p>\n
The issue: <\/p>\n
As defined by DARPA, the \u201cDramatic growth in U.S. launch costs since [the] early 1990s is driving much larger growth in space system costs.\u201d<\/p>\n
As part of DARPA\u2019s \u201cExperimental Spaceplane (XS-1): Aiming to Reduce the Time to Space and Cost to Space by Orders of Magnitude\u201d overview (video and materials in L2), the program cites an annual DoD (Department of Defense) launch cost in excess of $3 billion USD, with small launches now cited as greater than $50 million USD each.<\/p>\n
The presentation also notes the cost and flight rate of the current U.S. launch systems certified to carry out launch operations for the U.S. Federal Government.<\/p>\n
According to DARPA\u2019s presentation, the Pegasus, Minotaur, and Antares launch vehicles only fly one DoD mission per year at a cost of ~$55 million USD per flight.<\/p>\n
SpaceX\u2019s Falcon 9 currently performs ~3-6 DoD missions per year at a contract price equal to or greater than $54 million USD per flight.<\/p>\n
DARPA claims the price per flight then jumps for United Launch Alliance\u2019s (ULA\u2019s) Atlas V and Delta IV launch vehicle families, which \u2013 they claim \u2013 currently perform about 8 DoD flights per year for a cost per flight in excess of $400 million USD.<\/p>\n
NASA educational resources (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n However, those numbers have been strangely inflated, as ULA\u2019s own published figures note the average price of a mission, accounting for all current firm contracts for Atlas and Delta launch services, is actually $225 million. This includes all missions, Department of Defense (DoD), NASA, commercial, Atlas V 401 through Delta IV Heavy. The full price for a lower-end mission utilizing the Atlas V is $164 million.<\/p>\n<\/p>\n While this pricing difference between SpaceX and ULA is well known and led to a rather public address of the issue within the U.S. Congress recently, DARPA also cites the increased production costs of satellites.<\/p>\n Specifically, the XS-1 presentation notes that a BLK I GPS satellite cost $43 million USD in 1990 compared to a BLK III GPS satellite cost of greater than $250 million USD today \u2013 a $170.96 million USD difference when adjusted for inflation.<\/p>\n \u201cWe\u2019re living in very exciting times in the launch industry, with many new commercial entrants \u2013 and for the first time, reusable space plane concepts are starting to be taken seriously,\u201d noted Jess Sponable, Program Manager at DARPA\/TTO during a video presentation.<\/p>\n \u201cIt\u2019s hard to ignore flying (and returning) hardware, so congratulations to SpaceX and Blue Origin. I anticipate more flying hardware (milestones) and I look forward to seeing it.\u201d<\/p>\n DARPA\u2019s solution \u2013 the XS-1 spaceplane:<\/p>\n DARPA\u2019s solution to this issue is a new, reusable spaceplane called Experimental Spaceplane 1 (XS-1).<\/p>\n \u201cIt proved to be a difficult challenge, with many successes and many failures along the way. (The likes of) the X-33 pushed the technology of reusable space flight,\u201d added Mr. Sponable, adding NASA and the Air Force\u2019s advances have directly helped not only SpaceX and Blue Origin, but also the \u201cTechnical Readiness Level\u201d for reusable space lift.<\/p>\n With a TRL of around 5, this rating is much higher than when the X-33 was being developed, with \u2013 as noted by DARPA \u2013 immature technology. The X-33 development process began with a TRL level of 3.<\/p>\n As such, DARPA believes the time is right for a renewed effort, one that began in 2013\/14, but is now being ramped up through a solicitation process, allowing for several industry concepts to be created.<\/p>\n However, Mr. Sponable added that the winning concept wouldn\u2019t necessarily have to be a winged vehicle, claiming they will listen to what the industry think is the best methord. Although he did intimate that \u201caircraft like\u201d operations point to a lifting body vehicle being the aim.<\/p>\n According to the DARPA presentation, the XS-1 project carries four prioritized goals: the design of a reusable booster system with launch costs traceable to <$5M\/flight; to fly the booster 10 times in 10 days; to demonstrate an immediate payload to orbit capability with cost traceability to the Operational System; and to enable routine, low-cost space access.<\/p>\n For a reusable booster with a cost per flight of less than $5 million USD, DARPA has set a test objective that XS-1 be able to transport equal to or greater than 3,000 lbs to a 100 nmi reference orbit inclined 90 degrees.<\/p>\n The threshold of this objective currently stands at an identical payload capacity to a 100 nmi reference orbit inclined 28.5 degrees.<\/p>\n For the flight rate goal, DARPA\u2019s stated test objective is to achieve 10 flights in 10 consecutive days \u2013 even when weather, range, and emergency delays are accounted for (threshold).<\/p>\n For an immediate demonstration of a payload to orbit capability, the objective is to be able to carry equal to or greater than 1,500 lbs to a 100 nmi orbit inclined 28.5 degrees due east, with a threshold payload of equal to or greater than 900 lbs to the same target orbit parameters.<\/p>\n While DARPA\u2019s name for this project implies a plane or Space Shuttle-like design, the Agency is actually open to several design options for the commercial field, with the presentation containing different notional designs for the XS-1 from Boeing, Masten, and Northrop Grumman \u2013 among others.<\/p>\n Moreover, DARPA notes that the XS-1 could be a winged or unwinged vehicle. It could also be a payload carriage craft.<\/p>\n Given the broad range of potential designs, XS-1 could be a horizontal launch\/horizontal land vehicle, a vertical launch\/horizontal land vehicle, or a vertical launch\/vertical land vehicle.<\/p>\n It could launch from the ground, air, or sea barge and could either land downrange or return to land at its launch site.<\/p>\n Regardless, the one development aspect DARPA is specific about in its presentation is that the XS-1 propulsion system must already be mature enough to enable flight testing No Later Than 2020.<\/p>\n DARPA also envisions the XS-1 as a craft capable of utilizing a clean pad with a minimally-staffed flights ops control center using a fully automated ops, propellant loading, and fluid loading system.<\/p>\n Development timeline and call for proposals:<\/p>\n Given DARPA\u2019s desire to reduce the DoD launch market cost and be a competitor in the proliferating commercial launch market, the proposed schedule for development is quite compressed.<\/p>\n According to the XS-1 presentation, DARPA is already in Phase I of XS-1 development \u2013 and has been since the fourth quarter of FY 2014 (July-September 2014).<\/p>\n Under Phases 2\/3, a Call For Proposals will be released around October 2016 \u2013 following the solitication release in May \u2013 with design review continuing through the second quarter of FY 2017 (January-March 2017).<\/p>\n DARPA \u2013 armed with $140m of specific funding for a public and private partnership \u2013 expects 25 concepts to be evaluated, according to Mr. Sponable.<\/p>\n A Critical Design Review is currently targeted for the first quarter of FY 2018 (October-December 2017) before the project moves on toward Flight Tests in the fourth quarter of FY 2019 (July-September 2019) through the first quarter of FY 2020 (October-December 2019).<\/p>\n Under this development schedule, DARPA envisions the XS-1 being ready for commercial transportation operations at the beginning of the third quarter of FY 2020 (April-June 2020).<\/p>\n At this time, DARPA anticipates to award the XS-1 contract to one provider only.<\/p>\n Moreover, while development will be a public-private partnership, DARPA\u2019s intention to \u201cdirectly transition the XS-1 to the commercial sector\u201d is a critical aspect of the program<\/p>\n According to the presentation, \u201cTo facilitate commercialization, DARPA wants to transfer title of the XS-1 vehicle to industry, but industry needs to offer a plan that provides \u2018consideration in kind\u2019 justifying transfer of title.\u201d<\/p>\n To this end, DARPA states that each proposal for development should address such commercial planning elements as: understanding of the current and projected market demands as well as \u201ccore customer needs by market segment\u201d and how each company\u2019s XS-1 design will address these needs.<\/p>\n However, following studies, DARPA believe the commerical interest is high, with the results of how XS-1 may fit into the competitive market as \u201csurprising\u201d, according to Mr. Sponable, especially with the new constellations of satellites that are being proposed.<\/p>\n XS-1 would be able to provide a speedy launch of such constellations, with the studies showing the vehicle could launch 100 small satellites in 10 days for as little as $50m, compared to $500m on a Delta IV-H (although Mr. Sponable\u2019s use of DARPA\u2019s inflated cost estimates for the ULA rockets pour some cold water on his example).<\/p>\n \u201cOn the Detla IV scenario, a great deal of risk is accepted by launching so many satellites at once. In fact, a customer may be betting their company on a successful launch. The XS-1 scenario is far less risky and allows for a far greater insertion of the satellites into orbital planes.\u201d<\/p>\n The launch on demand capability of XS-1 \u2013 it was claimed \u2013 could prove to be a game changer for the commercial and military markets.<\/p>\n (Images via DARPA, US Air Force, Masten Space Systems, NASA and Derrick Stamos for L2).<\/p>\n","protected":false},"excerpt":{"rendered":" Citing increasing U.S. launch costs and the \u201cfleeing\u201d of commercial customers to foreign launch service providers, the Defense Advanced Research Projects Agency (DARPA) is continuing to push a bold strategy tied to a new, reusable spaceplane that the Agency envisions flying 10 times in 10 days for a cost of less than $5 million USD […]<\/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":[1504,9019],"class_list":["post-39010","post","type-post","status-publish","format-standard","hentry","category-news","tag-darpa","tag-x-33"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/39010"}],"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=39010"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/39010\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=39010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=39010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=39010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}See Also<\/h4>\n
\n
![\"2016-07-11-125234\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-11-125234-350x274.jpg\")
Citing a \u201clook back to the past\u201d, Mr. Sponable cited previous attempts to create alternative reusuable spaceplanes \u2013 ranging back as far as World War II\u2019s German Sanger concept, through to the Space Shuttle and even the X-33 effort that was to result in the VentureStar before the program\u2019s demise.<\/p>\n![\"2016-07-13-152645\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-152645-350x221.jpg\")
Per the requirements, the winged craft, according to DARPA\u2019s vision, would be capable of performing 10 flights in 10 days, with a payload capacity greater than 3,000 lbs for a cost of less than $5 million USD per flight.<\/p>\n![\"2016-07-13-174952\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-174952-350x203.jpg\")
Each of these four prioritized goals carries a test objective and a test threshold.<\/p>\n![\"2016-07-13-165138\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-165138-350x264.jpg\")
To enable this routine access to space, DARPA hopes to \u201cfly the XS-1 to Mach 10+ at least once, and stage at high Mach to minimize the size and cost of the upper stage, \u201c with a stated developmental threshold for this at Mach 3+ travelling speeds and Mach 2+ staging speeds.<\/p>\n![\"2016-07-13-153930\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-153930-350x244.jpg\")
Its Thermal Protection System could be metallic, composite, active, passive, or a hybrid system.<\/p>\n![\"2016-07-13-164707\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-164707-350x232.jpg\")
Phase 1, which is currently tapering to its end by 30 September 2016, is the system design and risk reduction phase of development, which is now transitioning to Phases 2 and 3: full and open solicitation and development of the XS-1.<\/p>\n![\"2016-07-13-175431\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-175431-350x245.jpg\")
Launch site design would take place throughout FY 2017, with launch site construction taking place in FY 2018 and the first part of FY 2019.<\/p>\n![\"2016-07-13-170728\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-170728-350x222.jpg\")
Crucial to this plan, DARPA is also requesting that each proposal specifically address the \u201ccompetitiveness of existing vehicles and expected future vehicles.\u201d<\/p>\n![\"2016-07-13-171736\"](\"\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2016\/07\/2016-07-13-171736-350x215.jpg\")
\u201cA simplistic example is we could launch a constellation of 100 satellites on a Delta IV-H or we could spread them out 10 or more times on the XS-1 over 10 days,\u201d added Mr. Sponable.<\/p>\n