After many years of government-funded studies on the subject of modernized launch vehicle systems, the Air Force finally developed a "roadmap" in 1994 for the acquisition of Evolved Expendable Launch Vehicles (EELVs) to replace the DELTA IIs, ATLAS IIs, and TITAN IVs then in use at Cape Canaveral. Blue Origin was awarded $500 million of phase 1 funding for further development of New Glenn as a potential competitor in future contracts. 5 0 obj 4 The NSSL system includes launch vehicles, launch capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces . Along with the award of two development agreements, the total amount was more than $3 billion. 5 0 obj Although additional new entrants may be able to compete in the future, it is unlikely that others will be ready to compete before Phase 2. 97 0 obj 637 0 obj <> endobj [46] OmegA was a rocket design with two main solid stages, a cryogenic upper stage, and the possibility of additional solid-rocket strap-on boosters. xXn8+84 3m s?0d)!#fDQb-U!~$?ORR /p_)'a}^vh#|Z8+j-v$2c{\u>y-_{ZVV%mr|u|~/a& d0S&/SJig=0QtN&?iHpzje1$Zu>)4{^D)%g/(M%@%@^t`gGe6>a409$"e FA/|W z>q5.~iQXwID:!c 0000009026 00000 n We encourage you to use one of these browsers for the best experience. Standard payload interfaces were touted as another way to save money and improve efficiency, though success in that area remained to be seen. 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 endobj [46] As of 2019, Blue Origin expected a first launch of New Glenn in 2021. The EELV program would maintain current mass-to-orbit capability while increasing launch rate and decreasing costs. Thompson. [39], GPS-IIIA USA-289 was the first NSSL-type B5 Falcon 9 launch. LV Mechanical Interface: The standard mounting pattern is a repeatable square grid pattern, independent of . %%EOF The 4m diameter DCSS was retired with the Delta IV Medium after the 22 August 2019 launch of a GPS-III satellite on a Delta IV M+(4,2) two SRBs, and a 4m diameter DCSS and payload fairing. endobj 0000016479 00000 n 0000015937 00000 n i`zN$KgyHDis+hj^@BV/C4v3bKAj. xkqW@F%N(ISI>bUqE-9? U~2=s?/*Vni{w}]V_(?OnSy7W7e/Myug p=gOnJZ~ Mylo>)*1wNMY-sym{9.N u]%r 1qBuoFIrGmv vf.lO|RBhm7UVgo#`bME :q-vp{MfuyC@m/4[lV9/|ou;4;TwL==|X[e%" k+Xl["9/{+oOud&p>qfCxMa_&!+,P( xlvB^F,d` EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification LSP-REQ-317.01B Launch Services Program (LSP) Program Level . endobj To do so, ULA has had to maintain sufficient cost accounting systems within the company. - The EELV program is a funded U.S. Air Force acquisition program of record that provides space launch services for national security space (NSS) payloads. 0000004305 00000 n xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ RFP F04701-97-R-0008 19 June 1998 ii This page intentionally left blank. 0000015754 00000 n The payload interface at each port has been 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. In paying ULA for such fixed launch costs and executing the EELV program under a cost-plus contract, the DoD has reimbursed ULA for allowable, reasonable, and allocable costs for its launches, while requiring ULA to reimburse it on a per-launch basis for launches that ULA sells to its non-DoD customers. ULA is expected to handle 60 percent of the launches while SpaceX will handle 40 percent of the launches over the five-year period. 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 1320 Delta IV's inaugural flight was marked by the successful launch of a commercial satellite on a Medium-Plus (4,2) in November 2002. 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. The USAF began the EELV program in 1994, following many years of government-funded studies into improved systems and architecture. endobj % 2762 0 obj <> endobj [50], ULA was awarded $967 million of phase 1 funding for further development of Vulcan as a potential competitor in future contracts. capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces, special studies, post-flight data . 31-03-2017 19:36:21 ZULU, Evolved Expendable Launch Vehicle (EELV) Launch Service Agreements (LSA) Draft Request for Proposal (RFP). %PDF-1.6 % 6;6_.k stream Boeing received $1.38 billion, and Lockheed Martin received $650 million for the launches. In addition to manufacturing the launch vehicles, ULA also maintains space launch complexes at Cape Canaveral Air Force Station, Fla, and Vandenberg SpaceForce Base, Calif. 0000000776 00000 n [16] Each company has a 50% stake in ULA. The launch occurred on December 23, 2018.[40]. Either a 4m or 5m fairing encapsulates the payload. Download PDF. Evolved Expendable Launch Vehicle (EELV) standard interface specification, as well as Falcon 9 and Falcon Heavy. That strategy was designed to (1) . [24] The USAF and SpaceX settled the lawsuit in Jan 2015 by opening up more launches to competitive bidding. 0000000956 00000 n << /Length 22 0 R /Filter /FlateDecode >> Unlike earlier efforts to develop a new generation of space launch vehicles from a "clean sheet of paper," the EELV concept intended to capitalize on proven hardware found in the then current generation of DELTA II, ATLAS II/CENTAUR, and TITAN IV vehicles. 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. 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. . In August 2021, ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. The purpose of this paper is to describe the development of the EELV Standard Interface Specification (SIS) and its implications for spacecraft designers. The Governments objectives were to develop Payload Category A, B, and C launch system prototypes, through shared investment with industry partners that will lead to EELV certified launch systems capable of providing launch services for all EELV-class National Security Space (NSS) missions. ULA stated it did not have any Atlas engines available to bid in order to submit a timely proposal. 0000002426 00000 n Each of the bids included a variety of concepts. [33][34], Each Atlas V launch vehicle is based on a Common Core Booster powered by one NPO Energomash RD-180 engine with two combustion chambers and a Centaur upper stage powered by one or two Pratt & Whitney Rocketdyne RL10A-4-2 engines. 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 hb```,l? [3][4], On 1 March 2019, the program name was changed from EELV to National Security Space Launch (NSSL) to better reflect the growing commercial launch market and the changing nature of launch contracts, including the potential for reusable launch vehicles. [7A\SwBOK/X/_Q>QG[ `Aaac#*Z;8cq>[&IIMST`kh&45YYF9=X_,,S-,Y)YXmk]c}jc-v};]N"&1=xtv(}'{'IY) -rqr.d._xpUZMvm=+KG^WWbj>:>>>v}/avO8 0000003519 00000 n wc/CR6@Vf|N`ObN#C8\'08#9MVk-v^.O@G}&(U! AGR-aH2\p|)+h [47] In 2020, Northrop Grumman announced the cancellation of OmegA. The second stage is powered by the RL-10B engine. Delta IV CBCs and DCSSs are integrated horizontally before being transported to the launchpad. The EELV system includes all equipment, facilities, and launch base infrastructure necessary to launch a payload, place it in the required delivery orbit, provide specified environments, provide. 0000004093 00000 n This document was produced and is maintained by the Evolved Expendable Launch Vehicle [5] Delta IV Medium was retired in August 2019. endobj 15 0 obj The RSS is offered only onEvolved Expendable Launch Vehicle (EELV) LVs certified to launch National Security Space missions; hence, APLs must not violate EELV requirements documented in the EELV Standard Interface Specification (SIS) and/or System Performance Requirement Document (SPRD). endstream <>stream ESPA is designed to quasi-static acceleration load factors that were derived from the EELV Standard Interface Specification Document (SIS). Compliance with Standard Interface Specification (SIS) - Defines the standard interface between the payload and the launch system. 6 0 obj These launch vehicles provide critical spacelift capability to support Department of Defense and other National Security missions (together known as National Security Space (NSS) missions). [13] Boeing and Lockheed Martin were each awarded US$500 million for the final phase of the bid. 21 0 obj THE EVOLVED EXPENDABLE LAUNCH VEHICLE (EELV) STANDARD INTERFACE SPECIFICATION FOR SPACE VEHICLE ACCOMMODATIONS Frank L. Knight. The USAF and United States Space Force (USSF) plan to use the next generation NSSL launch vehicles until at least 2030.[31]. The interface includes mechanical, For example, in order to meet its projected reductions in life cycle costs, the EELV needed to capture at least 15 percent of the commercial market. It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. 27 33 0000004200 00000 n As of that time, Vulcan Centaur was on track for a 2021 launch. 0000005993 00000 n 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. R'O* u/7svAZ6r4[ZDX$22L)966@D1{2?=ben6hy. [35], A three-digit (XYZ) naming convention is used for the Atlas V configuration identification. 1401 -2- 0000004106 00000 n Thats Defining Possible. hb```,l? %PDF-1.7 % 0000000016 00000 n 0000076318 00000 n stream El Segundo, California 90245-2808 : DISTRIBUTION STATEMENT A: Approved for public release. [49] In the event, no phase 2 funding from the US government was forthcoming after August 2020 when ULA Vulcan and SpaceX were selected by the Air Force. An Atlas V XYZ will have a 4.2-or-5.4-meter (14 or 18ft) diameter payload fairing, Y solid rocket boosters (0-5), and Z RL-10's on the Centaur upper stage (1-2). Attachment 6 Evaluation Criteria. CX' )3~~0Q I3W This document was developed by the NASA Science Mission Directorate (SMD). 27 0 obj <> endobj xref hb``g``f`f`. Instead of setting those engines aside for national security launches, ULA rushed to assign them to non-national security launches that are unrestricted in their use of Russian engines. 0000001699 00000 n @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { [ /ICCBased 12 0 R ] As of September 2019, it has two manifested classified national security flights for the USAF in 2021.[43][44][45]. endobj .3\r_Yq*L_w+]eD]cIIIOAu_)3iB%a+]3='/40CiU@L(sYfLH$%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' 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 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. [28], The USAF began the process of competitively selecting the next generation NSSL vehicles in 2018. /TT2 9 0 R /TT6 13 0 R /TT10 17 0 R /TT4 11 0 R >> >> Delta IV CBCs and DCSSs are integrated horizontally before being transported to the launchpad. 0000068253 00000 n The EELV competition was expected to produce the next generation of launch vehicles to replace all medium to heavy launchers, Lockheed Martin's Atlas, Titan II and Titan IV series, and McDonnell Douglas's Delta series, with a single family of vehicles capable of launching medium and heavy payloads into orbit at a significantly lower cost. EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. 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. 0000006880 00000 n A1vjp zN6p\W pG@ Falcon Heavy has been certified for two Phase 1A reference orbits and as of 2019, "[i]t's not certified for all of our most stressing national security space orbits," Thompson said. The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. The EELV program's Delta IV and Atlas V launch vehicles are produced by United Launch Alliance (a joint venture of Boeing and Lockheed Martin formed in 2006). 0000001202 00000 n EELVs were to reduce costs by being based on standardized fairings, liquid core vehicles, upper stages, and solid rocket boosters. hs2z\nLA"Sdr%,lt endstream endobj startxref %PDF-1.3 Making space accessible. A Standard Payload Interface bus was also proposed as a way to save money and improve efficiency. FV>2 u/_$\BCv< 5]s.,4&yUx~xw-bEDCHGKwFGEGME{EEKX,YFZ ={$vrK RFP F04701-97-R-0008 19 June 1998 ii It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification . [5][6], The NSSL program launches the nation's most valuable military satellites; contracts to launch lower value payloads, such as those of the Space Test Program, are awarded using different methodologies.[7]. Semantic Scholar's Logo. The Medium & Medium-Plus vehicles use a single Common Booster Core (CBC), while the Heavy variant uses three CBCs. 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. 0000005030 00000 n 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. However, the Committee was concerned that the Department was focusing too narrowly on its national security requirements and not adequately reflecting the needs of the US commercial space launch industry. 0000101481 00000 n [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]. New ICD Revisions in Development 8/22/2022: UPREVISIONS RELEASED 0000001313 00000 n The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. [32] The DCSS had 4m diameter and 5m diameter versions, with matching diameter payload fairings. 120 0 obj 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. 1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl +7^j[Xcm,?p._. Evolved Expendable Launch Vehicle Rideshare User's Guide . %%EOF [38] This launcher features a reusable first stage and fairings, which lowers the cost per mission. ' Zk! $l$T4QOt"y\b)AI&NI$R$)TIj"]&=&!:dGrY@^O$ _%?P(&OJEBN9J@y@yCR nXZOD}J}/G3k{%Ow_.'_!JQ@SVF=IEbbbb5Q%O@%!ByM:e0G7 e%e[(R0`3R46i^)*n*|"fLUomO0j&jajj.w_4zj=U45n4hZZZ^0Tf%9->=cXgN]. EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification, 2011 (not cleared for public circulation) LSP-REQ-317.01B Launch Services Program (LSP) Program Level Dispenser and . %PDF-1.6 % EELV effort in 1995 are still manifestsignificant increases in launch costs and concerns over procurement and competition. 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. The second stage (known as Centaur) is powered by the RL-10A engine. 0000068216 00000 n 0 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. Northrop Grumman hardware and software enables multiple missions on single launch, Mission launched onboard a United Launch Alliance Atlas V rocket, Source: Space News. The goal was the creation of a cost-efficient and reliable family (or families) of "right size" spacelifters based on standardized fairings, liquid core vehicles, upper stages, and solid rockets. 0000006557 00000 n 0000070080 00000 n Blue Origin also filed a pre-award protest of the request for proposal arguing that the requirements were ambiguous. 678 0 obj <>stream 4.0,` 3p H.Hi@A> The payload interface at each port has been standardized, allowing for hosted and separable payload inter-changeability, late payload integration, hb```B ;6hvfa. /*@N]\BN\#`"H`~ez18G&,\0Npd}o$euJ qf3y,.$v=mFWU>f(, The EELV program is in the portfolio of the Program Executive Officer (PEO) for Space at the Space and Missile Systems Center (SMC). mimics the EELV 157.5 cm (62.01 in) Standard Interface Plane. a new EELV acquisition strategy in November 2011, revising it in 2013. 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