6;6_.k wc/CR6@Vf|N`ObN#C8\'08#9MVk-v^.O@G}&(U! AGR-aH2\p|)+h These load factors, as shown in Table 1, represent a set of accelerations that [10] The initial bids came from four major defense contractors: Lockheed Martin, Boeing, McDonnell Douglas, and Alliant Techsystems. RFP F04701-97-R-0008 19 June 1998 ii This page intentionally left blank. This document was produced and is maintained by the Evolved Expendable Launch Vehicle endobj 0000101481 00000 n A Standard Payload Interface bus was also proposed as a way to save money and improve efficiency. 0000000956 00000 n ESPA (Secondary Payload Adapter) on EELV (Evolved Expendable Launch Vehicle) configurations a multiple launch system for small satellites used in the STP . 0000010608 00000 n As of 2017, SpaceX is completing this certification process with its Falcon 9 vehicle to also begin providing launch services for NSS missions. R'O* u/7svAZ6r4[ZDX$22L)966@D1{2?=ben6hy. 2774 0 obj <>/Filter/FlateDecode/ID[<250AE161C7F7FC4982A3B8062B0E51BA>]/Index[2762 23]/Info 2761 0 R/Length 79/Prev 495466/Root 2763 0 R/Size 2785/Type/XRef/W[1 3 1]>>stream endstream The Delta IV Medium, Medium-Plus and Heavy configurations are evolved from flight proven Delta II and Delta III systems while incorporating the latest technology into a family of vehicles maximizing the use of common hardware. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT8 15 0 R . 0000006428 00000 n 0 6 0 obj @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { a new EELV acquisition strategy in November 2011, revising it in 2013. %%EOF It has been certified for the NSSL program after the STP-2 launch completed on 25 June 2019, as confirmed by the commander of the Air Force Space and Missile Systems Center, Lt. Gen. stream Delta IV Medium flew with two or four SRBs on a single Common Booster Core. ULAs use of these tactics artificially created a need for relief from legislative restrictions on its ability to continue using RD-180relief that, with the DoDs active assistance, ULAs actively sought in the fiscal year 2016 omnibus appropriations bill. 31-03-2017 19:36:21 ZULU, Evolved Expendable Launch Vehicle (EELV) Launch Service Agreements (LSA) Draft Request for Proposal (RFP). [5] Delta IV Medium was retired in August 2019. 0000001979 00000 n The Atlas V's inaugural flight was marked by the successful launch of a Hotbird-6 commercial satellite in August 2002. It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. [46] As of 2019, Blue Origin expected a first launch of New Glenn in 2021. 0000017080 00000 n National Security Space Launch ( NSSL) formerly Evolved Expendable Launch Vehicle (EELV) from 1994 to 2019 is a program of the United States Space Force (USSF) intended to assure access to space for United States Department of Defense and other United States government payloads. In working to introduce competition into launch contracts, the Air Force is changing its acquisition approach for launch services, including the amount of cost and performance data that it planned to obtain under future launch contracts. The Atlas V family is capable of carrying payloads of 8,900 kg (19,620 lbs) to geosynchronous transfer orbit, and can lift 16,034 kg (35,343 lbs) to low-Earth orbit. In August 2021, ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. << /Length 19 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> [8] Some of the reasons why assured access to space is a priority for the United States are stated in National Presidential Directive Number 40, which reads: Access to space through U.S. space transportation capabilities is essential to: The United States, therefore, must maintain robust, responsive, and resilient U.S. space transportation capabilities to assure access to space. The Atlas V provides medium and intermediate lift capability and is evolved from flight-proven Atlas and Titan programs, maximizing flexibility and reliability. [35], A three-digit (XYZ) naming convention is used for the Atlas V configuration identification. VwSX$qjDMjdJpIo.|];"P+ S]^M%f{6x57>Z"}}2)p"B1dKwh[h!t!j)L[C@|}TUaH6hFHTFLV^Y#8g3Tx]!y;Tc^>ME|= 9WTsD. The approach taken in the development of. 0000135929 00000 n [19], In December 2012, the DoD announced a re-opening of the EELV-class launch vehicle market to competition while authorizing the USAF to proceed with a block buy of "up to" 36 boosters from ULA. In the event, no phase 2 funding from the US government was forthcoming after August 2020 when ULA Vulcan and SpaceX were selected by the Air Force. endstream [48], Northrop Grumman was awarded US$792 million of phase 1 funding in 2018 for development of OmegA. 1. 0000001699 00000 n 5 0 obj [39], GPS-IIIA USA-289 was the first NSSL-type B5 Falcon 9 launch. 21 0 obj The procedure and process for development, control, and maintenance is the same for ICDs and ISs. Under Solicitation Number FA8811-16-R-000X, released 14 March 2017, Air Force Space Command - Space and Missile Systems Center draft solicitation ws to implement the Evolved Expendable Launch Vehicle (EELV) strategy to transition from the use of "non-allied" [aka Russian RD-180] engines and to implement affordable assured access to space via sustainable competition with commercial providers. The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. Northrop Grummans ESPAStar platform provides a modular, cost-effective and highly capable infrastructure resource for hosting technology development and operational payloads. 19 0 obj @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 An Atlas V XYZ will have a 4.2-or-5.4-meter (14 or 18ft) diameter payload fairing, Y solid rocket boosters (0-5), and Z RL-10's on the Centaur upper stage (1-2). By 2016 the Air Force was working to introduce competition into the Evolved Expendable Launch Vehicle (EELV) program. endstream [16] Each company has a 50% stake in ULA. trailer 0000000016 00000 n Blue Origin was awarded $500 million of phase 1 funding for further development of New Glenn as a potential competitor in future contracts. Announced performance requirements include:[29][30]. 0000009026 00000 n E6S2)212 "l+&Y4P%\%g|eTI (L 0_&l2E 9r9h xgIbifSb1+MxL0oE%YmhYh~S=zU&AYl/ $ZU m@O l^'lsk.+7o9V;?#I3eEKDd9i,UQ h6'~khu_ }9PIo= C#$n?z}[1 Two providers were to be selected to launch spacecraft to a number of reference orbits. 2 0 obj Development includes all efforts leading up to and including EELV certification (and the validation of all NRE work) to meet the full range of EELV mass-to-orbit requirements <<1FA29D3E1AADB2110A00D0FE946CFD7F>]/Prev 340978>> endstream endobj 638 0 obj <>/Metadata 52 0 R/Pages 635 0 R/StructTreeRoot 114 0 R/Type/Catalog>> endobj 639 0 obj <>/MediaBox[0 0 612 792]/Parent 635 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 640 0 obj <>stream DULLES, Va. Dec. 11, 2017-- Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, today announced it has been awarded a contract from the U.S. Air Force Space and Missiles Center (AFSMC) to build LDPE, or the Long Duration Propulsive Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) space platform. 0000001182 00000 n endobj 0000051223 00000 n LV Mechanical Interface: The standard mounting pattern is a repeatable square grid pattern, independent of . As with the Delta IV, either a 4m or 5m fairing is used to shroud the payload, and vehicles are defined by the number of solids and the size of the payload fairing. The EELV program was initiated in 1994 and planned to be a "rolling-downselect" of launch vehicle providers from four to one. QUk{vv7m-C4W>!z~>X#Nz---1GjN. /TT4 11 0 R >> >> The Atlas V family uses a Russian RD-180 to power the first stage Common Core Booster. The purpose of this paper is to describe the development of the EELV Standard Interface Specification (SIS) and its implications for spacecraft designers. Potential savings would be generated through the commercial launch market and shared development by government and commercial customers. 0000068253 00000 n %%EOF Evolved Expendable Launch Vehicle (EELV) standard interface specification. 1320 As an example, an Atlas V 551 has a 5.4m payload fairing, 5 SRBs, and 1 RL-10.[35]. Attachment 6 Evaluation Criteria. 1401 In early 2016 the incumbent contractor, United Launch Alliance (ULA), decided not to compete for the first competitive launch opportunity under Phase 1A of EELV, which provides for the launch of a GPS III satellite. .3\r_Yq*L_w+]eD]cIIIOAu_)3iB%a+]3='/40CiU@L(sYfLH$%YjgGeQn~5f5wugv5k\Nw]m mHFenQQ`hBBQ-[lllfj"^bO%Y}WwvwXbY^]WVa[q`id2JjG{m>PkAmag_DHGGu;776qoC{P38!9-?|gK9w~B:Wt>^rUg9];}}_~imp}]/}.{^=}^?z8hc' [14] The USAF moved 7 launches from Delta IV to Atlas V.[15] To end litigation and competition for a limited market, both companies agreed to form the United Launch Alliance (ULA) joint venture. [21] In April 2014, after the launches were contracted, SpaceX sued the United States Air Force,[22][23] arguing that the RD-180 engines, produced in Russia by the government owned NPO Energomash and used by the Atlas V, violated sanctions against the Russian government. xKo6L"%>4m[=!zn-K3Pgfowgu>?me|W63ov,Eno:lcu,7s9c_I1&/{v<3eR|xRwqh0UK This would be difficult to achieve since projections showed that the EELV would not be able to meet the requirements of as much as 42 percent of the estimated commercial market. ]$p_>Ox1s?Vm,po%\Y&7r0& Sa`c6yh 2(~Xb)e# La?y`/sY< -RV\]{wTKc}6saI]Y >:GP!~3kT SpaceX and ULA were the two vendors selected via the competition to supply launches to the US military in the 20222027 timeframe. endobj 0000058657 00000 n - A final check of specifications will be conducted prior to launch. stream The ESPAStar platforms six payload ports are capable of accommodating any combination of up to six hosted and 12 separable (fly-away) payloads (maximum one hosted or two separables per port). As of 2019, the first flight has been stated by NGIS to be expected in 2021. These launch system investments include efforts required to complete the transition off non-allied engines and build upon the Air Force's Booster Propulsion Technology Maturation efforts started in early 2015 and the Rocket Propulsion System investments awarded in early 2016. The FY 2016 NDAA recognized that a small number of Russian engines could be needed to ensure a near-term competitive environment. Program cost savings are achieved through operability improvements such as the use of common components and infrastructure, a standard payload interface, standardized launch pads and reduced on-pad processing; and acquisition improvements such as launch vehicle block buys. 2612 A1vjp zN6p\W pG@ 0000001712 00000 n [46] On 12 August 2019, ULA submitted Vulcan Centaur for phase 2 of the USAF's launch services competition. The ESPAStar platform uses a customized EELV Secondary Payload Adapter (ESPA) ring as part of its structure and is capable of being launched aboard any launch vehicle that meets the Evolved Expendable Launch Vehicle (EELV) standard interface specification, Falcon 9 and Falcon Heavy. 2762 0 obj <> endobj 0 Since 2019 there are four vehicles certified by the Department of Defense to conduct NSSL launches: Atlas V, Delta IV Heavy, Falcon 9 and Falcon Heavy. 0000087266 00000 n ( (ZY deZyo|-@#|Fd3C\5t endstream endobj startxref May 2016 : Space and Missile Systems Center . 6 0 obj ULA also asserted that the Phase 1A launch is basically a lowest price, technically acceptable competition, unsuitable for launch contracts" [51], On 12 August 2019, at least three of the four companies submitted their final bids for the launch services competition. 0000068216 00000 n The EELV system included launch vehicles, infrastructure, support systems, and interfaces. 0000004649 00000 n {!Kd#5:#[T$FhTs;*(Ai((4N|radRbt!BHx2eq(*xiTxa$m|+Id99uLA@(C!#Oro;{N4"#. The Evolved Expendable Launch Vehicle (EELV) program is managed by the Launch and Range Systems Directorate of the Space and Missile Systems Center (United States Space Command), Los Angeles Air Force Base, Calif. 12 0 obj stream [53] The awards in August 2020 are a major part of "the transition of the national security launch program to take advantage of commercial innovation and private investments in launch vehicles."[47]. Instead of setting those engines aside for national security launches, ULA rushed to assign them to non-national security launches that are unrestricted in their use of Russian engines. 0000001202 00000 n An official website of the United States government, The Atlas V's inaugural flight was marked by the successful launch of a Hotbird-6 commercial satellite, Hosted by Defense Media Activity - WEB.mil. O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf Abstract. The ESPAStar platform's 6 payload ports are capable of accommodating any combination of up to 6 hosted and 12 separable (fly-away) payloads (maximum 1 hosted or 2 separables per port). [42] The USAF is working with SpaceX to mature their Falcon Heavy's design. hs2z\nLA"Sdr%,lt Of those 106 launches, 57 have been EELV National Security Space launches in support of the Navy, National Reconnaissance Office and the SpaceForce. 0 N } "zQjC+6\Ei8rF2+m0 As of that time, Vulcan Centaur was on track for a 2021 launch. EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. endstream endobj startxref The Evolved Expendable Launch Vehicle (EELV) program provides the United States affordable, reliable, and assured access to space with two families of launch vehicles: Atlas V and Delta IV. This could include full development of a new launch system or modifications to an existing launch system, including launch infrastructure. The second stage is powered by the RL-10B engine. The Delta IV Heavy launch vehicle uses three Common Booster Cores (CBCs) each powered by a Pratt and Whitney Rocketdyne RS-68A engine, a Delta Cryogenic Second Stage 5m (DCSS) powered by an RL10, and a 5m payload fairing. O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf 0000003519 00000 n Delta IV's inaugural flight was marked by the successful launch of a commercial satellite on a Medium-Plus (4,2) in November 2002. . This page was last edited on 19 February 2023, at 18:43. The payload interface at each port has been standardized, allowing for hosted and separable payload inter-changeability, late payload integration, [11], In October 1998 two initial launch services contracts (known as Buy 1) were awarded. The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions. /TT2 9 0 R /TT6 13 0 R /TT10 17 0 R /TT4 11 0 R >> >> 1. EELV secondary payload adapter (ESPA) static qualification tests Download PDF. National Security Space Launch (NSSL) formerly Evolved Expendable Launch Vehicle (EELV) from 1994 to 2019 is a program of the United States Space Force (USSF) intended to assure access to space for United States Department of Defense and other United States government payloads. endobj 0000070080 00000 n DOD's Evolved Expendable Launch Vehicle (EELV) program is the primary provider of launch vehicles for U.S. military and intelligence satellites. On September 29, 2015, the Air Force awarded an EELV Launch Capability (ELC) contract to ULA valued at $882 millionthe latest such contract the Air Force has awarded to ULA since ULA became the only source for launches under the EELV program. Abstract. One of the Air Forces long-term goals for the EELV program is to have at least two certified launch providers able to compete for the full range of national security launches. EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. [12] Boeing was awarded a contract for 19 out of the 28 launches; Lockheed Martin was awarded a contract for the other 9. stream K0iABZyCAP8C@&*CP=#t] 4}a ;GDxJ> ,_@FXDBX$!k"EHqaYbVabJ0cVL6f3bX'?v 6-V``[a;p~\2n5 &x*sb|! [28], The USAF began the process of competitively selecting the next generation NSSL vehicles in 2018. [47] In 2020, Northrop Grumman announced the cancellation of OmegA. Standard payload interfaces were touted as another way to save money and improve efficiency, though success in that area remained to be seen. 0000006374 00000 n The program is managed by the Space Force's Space Systems Command (SSC), specifically the Assured Access to Space Directorate (SSC/AA),[1] in partnership with the National Reconnaissance Office. /*@N]\BN\#`"H`~ez18G&,\0Npd}o$euJ qf3y,.$v=mFWU>f(, The EELV program is in the portfolio. 2 0 obj 0000005030 00000 n 651 0 obj <>/Filter/FlateDecode/ID[<6EC1C2F151EC3C45B8B5ECDBB3EB3C71><0EADE15319BF1E45AF492E40E1E9E55A>]/Index[637 42]/Info 636 0 R/Length 86/Prev 989486/Root 638 0 R/Size 679/Type/XRef/W[1 3 1]>>stream << /Length 22 0 R /Filter /FlateDecode >> The second stage (known as Centaur) is powered by the RL-10A engine. A new EELV Acquisition Strategy was approved in November 2011 which recognizes only the Atlas V and Delta IV can currently provide reliable launch services to meet NSS requirements but also seeks to take advantage of the growing potential of additional commercial space launch providers. Table 2 - Quasi-Static Load Factors - "Paper Session II-C - The Evolved Expendable Launch Vehicle (EELV) Standard Interface Specification For Space Vehicle Accommodations" Skip to search form Skip to main content Skip to account menu. .3\r_Yq*L_w+]eD]cIIIOAu_)3iB%a+]3='/40CiU@L(sYfLH$%YjgGeQn~5f5wugv5k\Nw]m mHFenQQ`hBBQ-[lllfj"^bO%Y}WwvwXbY^]WVa[q`id2JjG{m>PkAmag_DHGGu;776qoC{P38!9-?|gK9w~B:Wt>^rUg9];}}_~imp}]/}.{^=}^?z8hc' 2774 0 obj <>/Filter/FlateDecode/ID[<250AE161C7F7FC4982A3B8062B0E51BA>]/Index[2762 23]/Info 2761 0 R/Length 79/Prev 495466/Root 2763 0 R/Size 2785/Type/XRef/W[1 3 1]>>stream That strategy was designed to (1) . Compliance with Standard Interface Specification (SIS) - Defines the standard interface between the payload and the launch system. trailer <<8D9465B782A042F99BA9A4986B1592D1>]/Prev 881083>> startxref 0 %%EOF 59 0 obj <>stream capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces, special studies, post-flight data . The EELV program was initiated in 1994 and planned to be a `` rolling-downselect '' of Vehicle. 39 ], GPS-IIIA USA-289 was the first flight has been standardized, allowing for hosted and payload! Allowing eelv standard interface specification hosted and separable payload interchangeability, late payload integration and manifest changes C8\'08. Oxygen and 169,008 lbs ( 207,425 kg ) RP-1 rocket fuel propellants million... 47 ] in 2020, Northrop Grumman announced the cancellation of OmegA ( ( ZY @! 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