Launch performance can be augmented by adding either two or four solid rocket motors. The second stage (known as Centaur) is powered by the RL-10A engine. - 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. 1. 0000000016 00000 n 0 [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. %PDF-1.5 % 0000002358 00000 n 0000001979 00000 n [13] Boeing and Lockheed Martin were each awarded US$500 million for the final phase of the bid. 0000000016 00000 n At the same time, another 14 boosters were to be procured competitively beginning in 2015, with the initial launches to be performed in 2017. The Atlas V family uses a Russian RD-180 to power the first stage Common Core Booster. 0000006374 00000 n The payload interface at each port has been standardized, allowing for hosted and separable payload inter-changeability, late payload integration, 3 August 2016. . 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). The EELV program is in the portfolio. [48], Northrop Grumman was awarded US$792 million of phase 1 funding in 2018 for development of OmegA. hs2z\nLA"Sdr%,lt 6 0 obj endobj May 2016 : Space and Missile Systems Center . 6;6_.k These load factors, as shown in Table 1, represent a set of accelerations that The FY 2016 NDAA recognized that a small number of Russian engines could be needed to ensure a near-term competitive environment. 0000016479 00000 n Reducing the cost of launches and ensuring national access to space were the two main goals of the USAF space launch/EELV program. [32] In 2020, ULA announced that retirement of the Delta IV is anticipated in 2023 after 5 more launches. 0000070080 00000 n hb```,l? Northrop Grummans ESPAStar platform provides a modular, cost-effective and highly capable infrastructure resource for hosting technology development and operational payloads. 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. 1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl +7^j[Xcm,?p._. 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 . 0000009026 00000 n In 1998, when it appeared the growth in the commercial satellite industry would be able to sustain two providers of launch services, the Air Force decided to award contracts to both Boeing and Lockheed Martin for their respective launch capabilities. Boeing initially proposed using the RS-25 Space Shuttle main engine. 7 0 obj 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). << /Length 5 0 R /Filter /FlateDecode >> 678 0 obj <>stream The Atlas V family uses a Russian RD-180 to power the first stage Common Core Booster. 4.0,` 3p H.Hi@A> 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. endstream Opportunity which will utilize an Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) or ESPA Grande. 0000003406 00000 n Evolved Expendable Launch Vehicle Secondary Payload Adapter System Interface Specifications For . SpaceX and ULA were the two vendors selected via the competition to supply launches to the US military in the 20222027 timeframe. [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]. 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. Interface Specifications (ISs) are specific types of ICDs that only need approval from one government office or agency. Two providers were to be selected to launch spacecraft to a number of reference orbits. Program requirements for the EELV program, including reliability, accuracy, and standard interface, are specified in the EELV Capability Production Document (CPD), validated by the Joint Requirements Oversight Council (JROC) in 2016. EELV Standard Interface Specification - Version 6.0 2. [10] The initial bids came from four major defense contractors: Lockheed Martin, Boeing, McDonnell Douglas, and Alliant Techsystems. 4 0 obj [24] The USAF and SpaceX settled the lawsuit in Jan 2015 by opening up more launches to competitive bidding. 0000017080 00000 n 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. Vehicles are defined by the number of solids and the width of the payload fairing. Blue Origin was awarded $500 million of phase 1 funding for further development of New Glenn as a potential competitor in future contracts. Boeing developed the Delta IV based around Common Booster Cores and the Delta Cryogenic Second Stage, while Lockheed Martin developed the Atlas V based around Common Core Boosters and the Centaur upper stage. }, Page last modified: The EELV program would maintain current mass-to-orbit capability while increasing launch rate and decreasing costs. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT2 9 0 R endobj LV Mechanical Interface: The standard mounting pattern is a repeatable square grid pattern, independent of . 0000051223 00000 n endstream 0000058694 00000 n Abstract. Development is defined as all activities from initial concept up to, but not including, production. [32] The DCSS had 4m diameter and 5m diameter versions, with matching diameter payload fairings. EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification . The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions. stream 0000001712 00000 n With multiple launch vehicle configurations and launch sites on both coasts of the U.S., EELV has a proven track record of success, demonstrating unprecedented reliability with 106 successful launches since 2002. 0000003719 00000 n Evolved Expendable Launch Vehicle Rideshare User's Guide . << /Length 19 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> Evolved Expendable Launch Vehicle (EELV) Phase 1A Competitive Acquisition . xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ endstream endobj startxref Delta IV CBCs and DCSSs are integrated horizontally before being transported to the launchpad. 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 . << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 612 792] 6 0 obj Delta IV's inaugural flight was marked by the successful launch of a commercial satellite on a Medium-Plus (4,2) in November 2002. [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. A1vjp zN6p\W pG@ Delta IV Payload Planners Guide - October 1999 trailer 120 0 obj The first Heavy vehicle (demo) was launched in December 2004. APL requirements are not addressed in the SIS but their 0000101481 00000 n stream %PDF-1.6 % Of those 106 launches, 57 have been EELV National Security Space launches in support of the Navy, National Reconnaissance Office and the SpaceForce. 0000002177 00000 n O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf {!Kd#5:#[T$FhTs;*(Ai((4N|radRbt!BHx2eq(*xiTxa$m|+Id99uLA@(C!#Oro;{N4"#. 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. 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. [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 Pratt & Whitney Rocketdyne -built RS-68, a liquid hydrogen/liquid oxygen engine that produces 663,000 lbs of liftoff thrust, powers the first stage. endobj endobj EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification LSP-REQ-317.01B Launch Services Program (LSP) Program Level . 2612 endstream endobj startxref [41] He clarified: "I certified them to compete last year" and "[o]ne of the requirements behind certification is to fly three missions." The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. 5 0 obj In 2018, a competitive contract award to launch national security spacecraft was conducted between United Launch Alliance (ULA), Northrop Grumman Innovation Systems (NGIS), Blue Origin, and SpaceX. 0000004305 00000 n [38] This launcher features a reusable first stage and fairings, which lowers the cost per mission. 0000005030 00000 n 97 24 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. The Northrop Grumman name and logos are registered trademarks of Northrop Grumman. [16] Each company has a 50% stake in ULA. 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. 2762 0 obj <> endobj @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 Steady production rates, long-term commitments and opportunities for competition are among the means to achieve this goal. The payload interface at each port has been Along with the award of two development agreements, the total amount was more than $3 billion. @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { Northrop Grumman hardware and software enables multiple missions on single launch, Mission launched onboard a United Launch Alliance Atlas V rocket, Source: Space News. Search 209,668,378 papers from all fields of science . These launch vehicles provide critical spacelift capability to support Department of Defense and other National Security missions (together known as National Security Space (NSS) missions). mimics the EELV 157.5 cm (62.01 in) Standard Interface Plane. 0000003519 00000 n [49] In the event, no phase 2 funding from the US government was forthcoming after August 2020 when ULA Vulcan and SpaceX were selected by the Air Force. [7A\SwBOK/X/_Q>QG[ `Aaac#*Z;8cq>[&IIMST`kh&45YYF9=X_,,S-,Y)YXmk]c}jc-v};]N"&1=xtv(}'{'IY) -rqr.d._xpUZMvm=+KG^WWbj>:>>>v}/avO8 - A final check of specifications will be conducted prior to launch. K0iABZyCAP8C@&*CP=#t] 4}a ;GDxJ> ,_@FXDBX$!k"EHqaYbVabJ0cVL6f3bX'?v 6-V``[a;p~\2n5 &x*sb|! The second stage (known as Centaur) is powered by the RL-10A engine. O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf . 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. It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. [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. capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces, special studies, post-flight data . 0000003910 00000 n .3\r_Yq*L_w+]eD]cIIIOAu_)3iB%a+]3='/40CiU@L(sYfLH$%YjgGeQn~5f5wugv5k\Nw]m mHFenQQ`hBBQ-[lllfj"^bO%Y}WwvwXbY^]WVa[q`id2JjG{m>PkAmag_DHGGu;776qoC{P38!9-?|gK9w~B:Wt>^rUg9];}}_~imp}]/}.{^=}^?z8hc' 2762 0 obj <> endobj endobj 27 0 obj <> endobj xref %%EOF The RSS is offered only onEvolved Expendable Launch Vehicle (EELV) LVs certified to launch National Security Space missions; hence, APLs must not violate EELV requirements documented in the EELV Standard Interface Specification (SIS) and/or System Performance Requirement Document (SPRD). In paying ULA for such fixed launch costs and executing the EELV program under a cost-plus contract, the DoD has reimbursed ULA for allowable, reasonable, and allocable costs for its launches, while requiring ULA to reimburse it on a per-launch basis for launches that ULA sells to its non-DoD customers. endobj EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ By 2016 the Air Force was working to introduce competition into the Evolved Expendable Launch Vehicle (EELV) program. [36] As of 10November2022[update], 19 launches remain. The Falcon Heavy is a heavy-lift rocket developed and produced by SpaceX. DHh0D@z5+?w 0000005993 00000 n 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. 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. [25][26] The USAF certified the Falcon 9 in May 2015,[27] and in 2016 SpaceX won a contract under the EELV program to launch a GPS Block III satellite payload to MEO. 0000000776 00000 n [37], The main features of the Falcon 9 in its current Block 5 version include two stages, both powered by LOX and RP-1, with nine Merlin 1D engines on the first stage and one Merlin 1D Vacuum engine on the second stage. endobj %PDF-1.7 % That includes five engines that ULA currently has in its possession, which are not limited by the sanctions, since they were fully paid for prior to the Russian invasion of Crimea. The intent was to replace legacy vehicles, including Delta II, Atlas II, and Titan IV. Accommodates combinations of hosted (6 max) or separable (12 max) payloads at all mounting ports, 1.6 Mbps downlink, AFSCN-compatible, Type 1 encryption, EELV SIS Rev B compliant Full complement of electrical interfaces. 0000002426 00000 n [12], In 2003, Boeing was found to be in possession of proprietary documents from Lockheed Martin. Evolved Expendable Launch Vehicle (EELV) standard interface specification, as well as Falcon 9 and Falcon Heavy. RFP F04701-97-R-0008 19 June 1998 ii This page intentionally left blank. 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. EELV effort in 1995 are still manifestsignificant increases in launch costs and concerns over procurement and competition. hb```|+a1b0K5IiJs!C}D&m%[Xuddtu p|6:O3|3v)-F'M1*vm^b1:JeSzr60v0ht00t@0Gb0$cDHG Abt:2{$8naMeJC1kYDHn)_2u hH1=l 0000015754 00000 n On this Wikipedia the language links are at the top of the page across from the article title. c0|_}`pz0 cc4D 7\HCj(I?uf eX_0NcRu1wQ9 T'|>H%Z%*.yXSGc 4_GR+[5> (4'XgVZtL aq[aP/}ARI@PAwO8s .i,@Yf6akrCns!Uu* 4?,20-FKDgLuAp4j$hz~ 0000006428 00000 n xKo6L"%>4m[=!zn-K3Pgfowgu>?me|W63ov,Eno:lcu,7s9c_I1&/{v<3eR|xRwqh0UK As of 2019, these launch vehicles were the primary methods for launching U.S. military satellites, along with the Falcon 9 developed by SpaceX. endobj -2- [12] Boeing was awarded a contract for 19 out of the 28 launches; Lockheed Martin was awarded a contract for the other 9. DHh0D@z5+?w stream This document was developed by the NASA Science Mission Directorate (SMD). xref 0000082556 00000 n Paper Session I-A - The Evolved Expendable Launch Vehicle (EELV) Standard Interface Specification For Space Vehicle Accommodations Cape Canaveral, Florida Presentations and demonstrations on a broad spectrum of technology initiatives related to the development and advancement of spaceport and range technology that reduce operations turnaround . 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. %PDF-1.6 % 5 0 obj It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. If that was the case, then the Air Force will have developed a new family of launch vehicles that would be primarily used only for national security payloads, resulting in higher overhead costs to DoD, while missing an opportunity to maximize the competitive posture of US industry. [2], Started in 1994 as the Evolved Expendable Launch Vehicle launch system program, the initial program goal was to make government space launches more affordable and reliable, leading to the development of the Boeing Delta IV and Lockheed Martin Atlas V EELV families. 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. hb```B ;6hvfa. 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. Up to five Aerojet Rocketdyne Graphite-Epoxy Motor solid rocket boosters can be added to increase vehicle performance, and two diameters of payload fairing are available. The EELV program was initiated in 1994 and planned to be a "rolling-downselect" of launch vehicle providers from four to one. endobj 0000461158 00000 n >> 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. 0000006582 00000 n Photo Credit: U.S. Space Force. The procedure and process for development, control, and maintenance is the same for ICDs and ISs. Evolved Expendable Launch Vehicle (EELV) standard interface specification. The Medium & Medium-Plus vehicles use a single Common Booster Core (CBC), while the Heavy variant uses three CBCs. 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. The ESPAStar platform's 6 payload ports are capable of accommodating combi-nations of hosted or separable (fly-away) payloads. [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. [46] As of 2019, Blue Origin expected a first launch of New Glenn in 2021. Download PDF. stream endstream endobj startxref As of September 2019, it has two manifested classified national security flights for the USAF in 2021.[43][44][45]. 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). New ICD Revisions in Development 8/22/2022: UPREVISIONS RELEASED stream . [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. 0000001313 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. Evolved Expendable Launch Vehicle (EELV) standard interface specification. [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. ;mnf4fb3/!s}Wz#I/MeFg_$ob$bOR JDs5~7^U.BV*p3]2j,BBR3Pq2,LnVL{gLj}U;g;bqGQY7C85V7y3fi=fp"n0+ddobk El Segundo, California 90245-2808 : DISTRIBUTION STATEMENT A: Approved for public release. 0000027829 00000 n Launch Systems Enterprise Directorate (SMC/LE) 483 N. Aviation Blvd. 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. ULA stated it did not have any Atlas engines available to bid in order to submit a timely proposal. ( (ZY deZyo|-@#|Fd3C\5t 27 33 [47] In 2020, Northrop Grumman announced the cancellation of OmegA. >6?L`a,Epa_> 2 0 obj EELVs were to reduce costs by being based on standardized fairings, liquid core vehicles, upper stages, and solid rocket boosters. VwSX$qjDMjdJpIo.|];"P+ S]^M%f{6x57>Z"}}2)p"B1dKwh[h!t!j)L[C@|}TUaH6hFHTFLV^Y#8g3Tx]!y;Tc^>ME|= 9WTsD. 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 strategy invests in new and/or upgraded commercial launch solutions that also meet National Security Space (NSS) requirements. endobj 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. 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` [46] SpaceX received none of this funding to develop their designs, as both the Falcon 9 and Falcon Heavy had completed development and were already flying. The ESPAStar platform's 6 payload ports are capable of accommodating combi-nations of hosted or separable (fly-away) payloads. [42] The USAF is working with SpaceX to mature their Falcon Heavy's design. Either a 4m or 5m fairing encapsulates the payload. ' 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]. Blue Origin also filed a pre-award protest of the request for proposal arguing that the requirements were ambiguous. wc/CR6@Vf|N`ObN#C8\'08#9MVk-v^.O@G}&(U! AGR-aH2\p|)+h 2784 0 obj <>stream [9], Procurement of EELV boosters for military space launch was to evolve to more closely match commercial practice. 0000010608 00000 n hbbd```b`` D:H3YH22H5,)qS =A&]8 I 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. 1320 Thompson. Up to five solid rocket boosters can be added to augment performance. The Atlas V provides medium and intermediate lift capability and is evolved from flight-proven Atlas and Titan programs, maximizing flexibility and reliability. endobj Each of the bids included a variety of concepts. As of that time, Vulcan Centaur was on track for a 2021 launch. 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 << /Length 13 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> stream In August 2021, ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. The second stage is powered by the RL-10B engine. 15 0 obj 31-03-2017 19:36:21 ZULU, Evolved Expendable Launch Vehicle (EELV) Launch Service Agreements (LSA) Draft Request for Proposal (RFP). The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. 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). @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 19 0 obj ULA is expected to handle 60 percent of the launches while SpaceX will handle 40 percent of the launches over the five-year period. /*@N]\BN\#`"H`~ez18G&,\0Npd}o$euJ qf3y,.$v=mFWU>f(, EELV secondary payload adapter (ESPA) static qualification tests Download PDF. R'O* u/7svAZ6r4[ZDX$22L)966@D1{2?=ben6hy. THE EVOLVED EXPENDABLE LAUNCH VEHICLE (EELV) STANDARD INTERFACE SPECIFICATION FOR SPACE VEHICLE ACCOMMODATIONS Frank L. Knight. [28], The USAF began the process of competitively selecting the next generation NSSL vehicles in 2018. i`zN$KgyHDis+hj^@BV/C4v3bKAj. 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. 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. As an example, an Atlas V 551 has a 5.4m payload fairing, 5 SRBs, and 1 RL-10.[35]. [46] On 12 August 2019, ULA submitted Vulcan Centaur for phase 2 of the USAF's launch services competition. #ga-ad {display: none;} A1vjp zN6p\W pG@ 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 1401 hb``g``f`f`. The purpose of this paper is to describe the development of the EELV Standard Interface Specification (SIS) and its implications for spacecraft designers. SpaceX bid the existing launch vehicles of Falcon 9 and Falcon Heavy, while Blue Origin was expected to bid New Glenn, ULA bid Vulcan Centaur, and NGIS's bid status was not reported. >> 18 0 obj 0000006880 00000 n [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. Delta IV Medium flew with two or four SRBs on a single Common Booster Core. %PDF-1.3 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. {,M?TSwjj:2U|=ney(ymjvkeY&AeZDuL2 M#oWX~s iAzj]:a[Fd U?Vi5p5Zq,9,bZ/@,%, 6`#@)4I7,nCsSXDiAG'By"yeGy)h\s1{.D._"e-`uM67h2I ]_R)4I}I ? <>stream 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. hs2z\nLA"Sdr%,lt We encourage you to use one of these browsers for the best experience. 0000015937 00000 n 637 0 obj <> endobj 0 %PDF-1.3 << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 612 792] Evolved Expendable Launch Vehicle (EELV) Standard Interface Specification (SIS) Air Force Instruction 10-1202, Space Test Program Management Air Force Instruction 10-1202_AFSPCSUP, Space Test Program Management AFSPCI 13-1213, Launch Scheduling and Forecasting Procedures 1.5.2 Department of Defense Documents 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 /TT2 9 0 R /TT6 13 0 R /TT10 17 0 R /TT4 11 0 R >> >> 2612 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 As of 2019, the first flight has been stated by NGIS to be expected in 2021. 13 0 obj DULLES, Va. 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