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` endstream The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. 0000004106 00000 n The approach continues procurement of launch services and launch capability from ULA for the next several years but provides for a full and open competitive environment for any alternative sources as soon as they are certified. 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. APL requirements are not addressed in the SIS but their 1. 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. 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 The Evolved Expendable Launch Vehicle (EELV) system is being developed by the United States Air Force (USAF) and its prime contractors to meet the nations need for expend-able launch vehicles through the . Delta IV Medium flew with two or four SRBs on a single Common Booster Core. %PDF-1.7 % xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ <<1FA29D3E1AADB2110A00D0FE946CFD7F>]/Prev 340978>> << /Length 5 0 R /Filter /FlateDecode >> .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' 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 CubeSat Requirements Document MIL-STD-1540C Military Standard Test Requirements for Launch, Upper-Stage, and Space Vehicles 0000005030 00000 n Northrop Grummans ESPAStar platform provides a modular, cost-effective and highly capable infrastructure resource for hosting technology development and operational payloads. 1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl +7^j[Xcm,?p._. 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. 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. The USAF began the EELV program in 1994, following many years of government-funded studies into improved systems and architecture. 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 The USAF and United States Space Force (USSF) plan to use the next generation NSSL launch vehicles until at least 2030.[31]. The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions. Launch Systems Enterprise Directorate (SMC/LE) 483 N. Aviation Blvd. 18 0 obj 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. ULA is expected to handle 60 percent of the launches while SpaceX will handle 40 percent of the launches over the five-year period. [11], In October 1998 two initial launch services contracts (known as Buy 1) were awarded. Of those 106 launches, 57 have been EELV National Security Space launches in support of the Navy, National Reconnaissance Office and the SpaceForce. We encourage you to use one of these browsers for the best experience. Up to five solid rocket boosters can be added to augment performance. This document was produced and is maintained by the Evolved Expendable Launch Vehicle [48], Northrop Grumman was awarded US$792 million of phase 1 funding in 2018 for development of OmegA. The EELV program's Delta IV and Atlas V launch vehicles are produced by United Launch Alliance (a joint venture of Boeing and Lockheed Martin formed in 2006). 21 0 obj hb```|+a1b0K5IiJs!C}D&m%[Xuddtu p|6:O3|3v)-F'M1*vm^b1:JeSzr60v0ht00t@0Gb0$cDHG Abt:2{$8naMeJC1kYDHn)_2u hH1=l After a two-year solicitation and competition process in 20182020, in August 2020 the USSF selected SpaceX (F9 and FH) and ULA's yet-to-be-certified Vulcan Centaur to supply US military launch requirements in 20222027. Abstract. Shelby was a loyal supporter of ULA, and attempted to shoehorn in money to buy the RD-180 engines from Russia, against the wishes of Senator McCain and the rest of the Armed Services Committee. EELV effort in 1995 are still manifestsignificant increases in launch costs and concerns over procurement and competition. The US Space Force (USSF) plans 3034 launches during these five fiscal years. This page was last edited on 19 February 2023, at 18:43. The interface includes mechanical, .3\r_Yq*L_w+]eD]cIIIOAu_)3iB%a+]3='/40CiU@L(sYfLH$%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' The second stage (known as Centaur) is powered by the RL-10A engine. 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. ]p2c*lR-fHqmh"? WQ(_l+OKP($p Aa-7!@2y #%)#(F'00B[;y7/0F"4N( $&`,8aK/>z0?{3 @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { Delta IV Payload Planners Guide - October 1999 Evolved Expendable Launch Vehicle (EELV) Phase 1A Competitive Acquisition . 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. [24] The USAF and SpaceX settled the lawsuit in Jan 2015 by opening up more launches to competitive bidding. [42] The USAF is working with SpaceX to mature their Falcon Heavy's design. % endobj 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). 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. stream The Atlas V's inaugural flight was marked by the successful launch of a Hotbird-6 commercial satellite in August 2002. endstream endobj startxref 0000006374 00000 n [36] As of 10November2022[update], 19 launches remain. The EELV program was initiated in 1994 and planned to be a "rolling-downselect" of launch vehicle providers from four to one. EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification LSP-REQ-317.01B Launch Services Program (LSP) Program Level . 0000000956 00000 n Boeing initially proposed using the RS-25 Space Shuttle main engine. [12] Boeing was awarded a contract for 19 out of the 28 launches; Lockheed Martin was awarded a contract for the other 9. Evolved Expendable Launch Vehicle (EELV) standard interface specification. << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 612 792] stream 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. 0 N } "zQjC+6\Ei8rF2+m0 The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. A1vjp zN6p\W pG@ As of September 2019, it has two manifested classified national security flights for the USAF in 2021.[43][44][45]. On this Wikipedia the language links are at the top of the page across from the article title. O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf 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. Compliance with Standard Interface Specification (SIS) - Defines the standard interface between the payload and the launch system. 0000003910 00000 n [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. 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. That strategy was designed to (1) . [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. [20], The USAF signed a contract at that time with SpaceX for two launches in 2014 and 2015 to serve as proving flights to support the certification process for the Falcon 9 v1.1 and Falcon Heavy. for GPS III Launch Services . @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 0000001712 00000 n THE EVOLVED EXPENDABLE LAUNCH VEHICLE (EELV) STANDARD INTERFACE SPECIFICATION FOR SPACE VEHICLE ACCOMMODATIONS Frank L. Knight. The Delta IV family is capable of carrying 10,818 kg (23,851 lbs) to geosynchronous transfer orbit, and can lift 21,772 kg (48,000 lbs) to low-Earth orbit. [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]. 0000001361 00000 n 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 Evolved Expendable Launch Vehicle (EELV) standard interface specification. [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. #ga-ad {display: none;} At the same time, another 14 boosters were to be procured competitively beginning in 2015, with the initial launches to be performed in 2017. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT2 9 0 R DOD expects to spend about $9.5 billion over the next 5 years acquiring launch hardware and services through the program, during which time it will also be working to certify new launch providers. 1401 In October 2018, the USAF awarded development funding to ULA, NGIS, and Blue Origin to further the design of their rockets before a subsequent competition for award to build the launch vehicles. 637 0 obj <> endobj Search 209,668,378 papers from all fields of science . {!Kd#5:#[T$FhTs;*(Ai((4N|radRbt!BHx2eq(*xiTxa$m|+Id99uLA@(C!#Oro;{N4"#. }, Page last modified: It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. As of 2019, these launch vehicles were the primary methods for launching U.S. military satellites, along with the Falcon 9 developed by SpaceX. Thompson. [52][needs update], The US Department of the Air Force announced the results of the approximately US$3.5 billion National Security Space Launch Phase 2 Launch Service Procurement on 7 August 2020. 0000002843 00000 n wc/CR6@Vf|N`ObN#C8\'08#9MVk-v^.O@G}&(U! AGR-aH2\p|)+h endobj endobj The second stage is powered by the RL-10B engine. [35], A three-digit (XYZ) naming convention is used for the Atlas V configuration identification. As with the Delta IV, either a 4m or 5m fairing is used to shroud the payload, and vehicles are defined by the number of solids and the size of the payload fairing. The EELV was expected handle the bulk of the U.S. government's launch requirements after the year 2000 and was also expected to be used for commercial applications. 7 0 obj 2784 0 obj <>stream 4.0,` 3p H.Hi@A> The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. Blue Origin also filed a pre-award protest of the request for proposal arguing that the requirements were ambiguous. 2762 0 obj <> endobj endobj SpaceX and ULA were the two vendors selected via the competition to supply launches to the US military in the 20222027 timeframe. xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ "=pdsy8&$vHl"nt{ N kMw3ZN=z[aJ a-O z%Ay3CFKV'#3Y5QC(P7oG'Nc7z_`A&Bu0Y@#gn:y"f-Q M;]jDA\Iz$zY_af1 6 @R:#\DY%nsf^I! [41] He clarified: "I certified them to compete last year" and "[o]ne of the requirements behind certification is to fly three missions." 0000002177 00000 n stream [13] Boeing and Lockheed Martin were each awarded US$500 million for the final phase of the bid. Interface Specifications (ISs) are specific types of ICDs that only need approval from one government office or agency. 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. 15 0 obj [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. Along with the award of two development agreements, the total amount was more than $3 billion. 1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl +7^j[Xcm,?p._. The Medium & Medium-Plus vehicles use a single Common Booster Core (CBC), while the Heavy variant uses three CBCs. >> 0000000016 00000 n [ /ICCBased 12 0 R ] endobj capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces, special studies, post-flight data . These launch system investments include efforts required to complete the transition off non-allied engines and build upon the Air Force's Booster Propulsion Technology Maturation efforts started in early 2015 and the Rocket Propulsion System investments awarded in early 2016. VwSX$qjDMjdJpIo.|];"P+ S]^M%f{6x57>Z"}}2)p"B1dKwh[h!t!j)L[C@|}TUaH6hFHTFLV^Y#8g3Tx]!y;Tc^>ME|= 9WTsD. 3 August 2016. . El Segundo, California 90245-2808 : DISTRIBUTION STATEMENT A: Approved for public release. [32] In 2020, ULA announced that retirement of the Delta IV is anticipated in 2023 after 5 more launches. 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. 27 0 obj <> endobj xref 0000004093 00000 n << /Length 13 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> The strategy invests in new and/or upgraded commercial launch solutions that also meet National Security Space (NSS) requirements. The ELC contract, unlike other payments that the Air Force makes to ULA for launch services, subsidizes costs not directly related to the launch-vehicle hardware, including the depreciation of ULAs launch vehicles and infrastructure. 0000001182 00000 n Senator Richard Shelby is from Alabama. 0000000776 00000 n 0000087266 00000 n Launch performance can be augmented by adding either two or four solid rocket motors. It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. FV>2 u/_$\BCv< 5]s.,4&yUx~xw-bEDCHGKwFGEGME{EEKX,YFZ ={$vrK ESPA is designed to quasi-static acceleration load factors that were derived from the EELV Standard Interface Specification Document (SIS). <> endobj endobj The EELV program would maintain current mass-to-orbit capability while increasing launch rate and decreasing costs. Reducing the cost of launches and ensuring national access to space were the two main goals of the USAF space launch/EELV program. Steady production rates, long-term commitments and opportunities for competition are among the means to achieve this goal. [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. 0000003519 00000 n 2023 Northrop Grumman. << /Length 19 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> 0000068253 00000 n The payload interface at each port has been [51], On 12 August 2019, at least three of the four companies submitted their final bids for the launch services competition. [16] Each company has a 50% stake in ULA. >> 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. [47] In 2020, Northrop Grumman announced the cancellation of OmegA. 0000010105 00000 n [ /ICCBased 18 0 R ] EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. DHh0D@z5+?w Evolved Expendable Launch Vehicle (EELV) standard interface specification, as well as Falcon 9 and Falcon Heavy. ' 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]. 2612 Delta IV's inaugural flight was marked by the successful launch of a commercial satellite on a Medium-Plus (4,2) in November 2002. % %PDF-1.6 % %PDF-1.3 0000082556 00000 n ULA has a big factory down in Decatur, Alabama. 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 0000002426 00000 n This document was developed by the NASA Science Mission Directorate (SMD). The contractor was standardizing payload interfaces, launch pads, and infrastructure so that all configurations of each contractor's EELV family can be launched from the same pad and payloads can be interchanged between vehicles in the same class (i.e., medium, intermediate, or heavy). Semantic Scholar's Logo. [39], GPS-IIIA USA-289 was the first NSSL-type B5 Falcon 9 launch. 0000004649 00000 n The Atlas V provides medium and intermediate lift capability and is evolved from flight-proven Atlas and Titan programs, maximizing flexibility and reliability. @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 This website is best viewed in browsers such as: Edge, Firefox, Chrome, or Safari. hbbd```b`` d#XD The Northrop Grumman name and logos are registered trademarks of Northrop Grumman. 27 33 i`zN$KgyHDis+hj^@BV/C4v3bKAj. 1320 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 . ?fA(4 F 1@DCPog|yReAZirIrj{*0X}0b{37Vl [mvK7!,ubg-Yj0S(.rIW~,vMJro 8>-\8~-Yw0z UP2^PoDAzuEu;*YRs.KA=^>l=bLe*qV&y.vt%?k7MI(x8 zluC m^"4~b7 xBHNxZ9RRJhkL1hV0 LHJ9KDv"iE^p!+X$(/MDP_dP =|>hPHICt4B@n#,sqBGFY!u&i-dTr2e$'bWv7BiT|nT^F)U9K,rN0bi\2tR0,; Yz{:|*sO=c>z+Mf2BB.4Y!KRcW [47] Blue Origin is considered likely to continue building and testing New Glenn, in part since they were already privately funding development prior to the Air Force NSSL competition. << /Length 16 0 R /Filter /FlateDecode >> [46] On 12 August 2019, ULA submitted Vulcan Centaur for phase 2 of the USAF's launch services competition. >6?L`a,Epa_> By 2016 the Air Force was working to introduce competition into the Evolved Expendable Launch Vehicle (EELV) program. << /Length 5 0 R /Filter /FlateDecode >> Opportunity which will utilize an Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) or ESPA Grande. [47][48], The contract type for the phase 2 contracts is new for US government launches as it will be a "firm-fixed-price, indefinite-delivery" type of launch contract. K0iABZyCAP8C@&*CP=#t] 4}a ;GDxJ> ,_@FXDBX$!k"EHqaYbVabJ0cVL6f3bX'?v 6-V``[a;p~\2n5 &x*sb|! 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. As the Air Force's spacelift modernization program, EELV was designed to increase reliability and reduce launch costs by at least 25 percent over heritage Atlas, Delta and Titan space launch systems. hb```,l? << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 612 792] ) standard interface between the payload and the launch system Specification ( SIS ) - the! T4Qot '' y\b ) AI & NI $ R $ ) TIj '' &. 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