<<1FA29D3E1AADB2110A00D0FE946CFD7F>]/Prev 340978>> EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. 637 0 obj <> endobj 0000002843 00000 n [36] As of 10November2022[update], 19 launches remain. @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { Abstract. 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). 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. Delta IV Medium flew with two or four SRBs on a single Common Booster Core. [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. O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf [ /ICCBased 12 0 R ] The ESPAStar platform's 6 payload ports are capable of accommodating combi-nations of hosted or separable (fly-away) payloads. 2612 13 0 obj 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. <> 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 NASA Mission Specific ESPA SIS 4 LSP-REQ-317.01B Launch Services Program Program Level Dispenser and CubeSat . 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. Delta IV CBCs and DCSSs are integrated horizontally before being transported to the launchpad. Development is defined as all activities from initial concept up to, but not including, production. 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. hb```B ;6hvfa. 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. 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. APL requirements are not addressed in the SIS but their For almost 10 years, the EELV program had only one company capable of providing launches. 0000027829 00000 n SpaceX and ULA were the two vendors selected via the competition to supply launches to the US military in the 20222027 timeframe. The procedure and process for development, control, and maintenance is the same for ICDs and ISs. 2784 0 obj <>stream %%EOF Delta IV Payload Planners Guide - October 1999 hb```,l? Photo Credit: U.S. Space Force. R'O* u/7svAZ6r4[ZDX$22L)966@D1{2?=ben6hy. [13] Boeing and Lockheed Martin were each awarded US$500 million for the final phase of the bid. 0000002686 00000 n Interface Specifications (ISs) are specific types of ICDs that only need approval from one government office or agency. %PDF-1.3 EELV secondary payload adapter (ESPA) static qualification tests Download PDF. This would be difficult to achieve since projections showed that the EELV would not be able to meet the requirements of as much as 42 percent of the estimated commercial market. 0000000016 00000 n The program is managed by the Space Force's Space Systems Command (SSC), specifically the Assured Access to Space Directorate (SSC/AA),[1] in partnership with the National Reconnaissance Office. 2 0 obj 21 0 obj 0000005030 00000 n [46] As of 2019, Blue Origin expected a first launch of New Glenn in 2021. [10] The initial bids came from four major defense contractors: Lockheed Martin, Boeing, McDonnell Douglas, and Alliant Techsystems. [14] The USAF moved 7 launches from Delta IV to Atlas V.[15] To end litigation and competition for a limited market, both companies agreed to form the United Launch Alliance (ULA) joint venture. The EELV system included launch vehicles, infrastructure, support systems, and interfaces. Standard payload interfaces were touted as another way to save money and improve efficiency, though success in that area remained to be seen. ;mnf4fb3/!s}Wz#I/MeFg_$ob$bOR JDs5~7^U.BV*p3]2j,BBR3Pq2,LnVL{gLj}U;g;bqGQY7C85V7y3fi=fp"n0+ddobk 0000015754 00000 n The Delta IV Heavy launch vehicle uses three Common Booster Cores (CBCs) each powered by a Pratt and Whitney Rocketdyne RS-68A engine, a Delta Cryogenic Second Stage 5m (DCSS) powered by an RL10, and a 5m payload fairing. That strategy was designed to (1) . endobj In early 2016 the incumbent contractor, United Launch Alliance (ULA), decided not to compete for the first competitive launch opportunity under Phase 1A of EELV, which provides for the launch of a GPS III satellite. Of those 106 launches, 57 have been EELV National Security Space launches in support of the Navy, National Reconnaissance Office and the SpaceForce. ( (ZY deZyo|-@#|Fd3C\5t K0iABZyCAP8C@&*CP=#t] 4}a ;GDxJ> ,_@FXDBX$!k"EHqaYbVabJ0cVL6f3bX'?v 6-V``[a;p~\2n5 &x*sb|! 0000000956 00000 n 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. In August 2021, ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. [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 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. 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 This could include full development of a new launch system or modifications to an existing launch system, including launch infrastructure. hb``g``f`f`. << /Length 13 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> ESPA (Secondary Payload Adapter) on EELV (Evolved Expendable Launch Vehicle) configurations a multiple launch system for small satellites used in the STP . [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. [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. 0 The Atlas V's inaugural flight was marked by the successful launch of a Hotbird-6 commercial satellite in August 2002. The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions. 0000001699 00000 n ULA has a big factory down in Decatur, Alabama. Blue Origin also filed a pre-award protest of the request for proposal arguing that the requirements were ambiguous. hs2z\nLA"Sdr%,lt Potential savings would be generated through the commercial launch market and shared development by government and commercial customers. The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. 0000001313 00000 n 0000001202 00000 n #ga-ad {display: none;} 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. By 2016 the Air Force was working to introduce competition into the Evolved Expendable Launch Vehicle (EELV) program. endstream 97 24 0000004649 00000 n for GPS III Launch Services . Opportunity which will utilize an Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) or ESPA Grande. Thats Defining Possible. Search 209,668,378 papers from all fields of science . Blue Origin was awarded $500 million of phase 1 funding for further development of New Glenn as a potential competitor in future contracts. In the event, no phase 2 funding from the US government was forthcoming after August 2020 when ULA Vulcan and SpaceX were selected by the Air Force. EELVs were to reduce costs by being based on standardized fairings, liquid core vehicles, upper stages, and solid rocket boosters. This requirement has been satisfied by the Falcon Heavy test flight in February 2018, Arabsat-6A in April 2019, and the STP-2 launch in June 2019. 0 The strategy invests in new and/or upgraded commercial launch solutions that also meet National Security Space (NSS) requirements. endobj 0000082556 00000 n New ICD Revisions in Development 8/22/2022: UPREVISIONS RELEASED nG +D,@g%ZKh?RgO>52orjm*R2C}H6m5W0_/om>+pZ}. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT8 15 0 R /*@N]\BN\#`"H`~ez18G&,\0Npd}o$euJ qf3y,.$v=mFWU>f(, Evolved Expendable Launch Vehicle Secondary Payload Adapter (ESPA) Rideshare Users Guide, and Do-no-harm Requirements Document . 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 uses a Russian RD-180 to power the first stage Common Core Booster. 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 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. The EELV program was initiated in 1994 and planned to be a "rolling-downselect" of launch vehicle providers from four to one. 12 0 obj [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. The USAF and United States Space Force (USSF) plan to use the next generation NSSL launch vehicles until at least 2030.[31]. 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. 27 0 obj <> endobj xref endstream The purpose of this paper is to describe the development of the EELV Standard Interface Specification (SIS) and its implications for spacecraft designers. 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. Semantic Scholar's Logo. RFP F04701-97-R-0008 19 June 1998 ii . 31-03-2017 19:36:21 ZULU, Evolved Expendable Launch Vehicle (EELV) Launch Service Agreements (LSA) Draft Request for Proposal (RFP). xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ 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 hWn8>(o@N@-l5:l;C8y!e -TPAqPi"`[#=yb#\d8B${t)"1`c]+e2a^H5U`j"q!DqttMo"!e]N>f1/ktOD3G=M/&n y6[)*zN Delta IV's inaugural flight was marked by the successful launch of a commercial satellite on a Medium-Plus (4,2) in November 2002. 0000001712 00000 n [46] On 12 August 2019, ULA submitted Vulcan Centaur for phase 2 of the USAF's launch services competition. 0000002177 00000 n endobj [32] The DCSS had 4m diameter and 5m diameter versions, with matching diameter payload fairings. The first Heavy vehicle (demo) was launched in December 2004. 0000076318 00000 n 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. Evolved Expendable Launch Vehicle Rideshare User's Guide . The Atlas V family uses a Russian RD-180 to power the first stage Common Core Booster. @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 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. %PDF-1.6 % 0000461158 00000 n [42] The USAF is working with SpaceX to mature their Falcon Heavy's design. 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. 0000068216 00000 n [17], Prior to 2012, the USAF was advancing another program, the Reusable Booster System and other follow-on technologies, and up to early 2012 issued contract awards for various aspects of it,[18] before the program was cancelled in October 2012. 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 >> [38] This launcher features a reusable first stage and fairings, which lowers the cost per mission. 0000004200 00000 n Evolved Expendable Launch Vehicle (EELV) standard interface specification. %PDF-1.3 ULA stated it did not have any Atlas engines available to bid in order to submit a timely proposal. /TT2 9 0 R /TT6 13 0 R /TT10 17 0 R /TT4 11 0 R >> >> << /Length 16 0 R /Filter /FlateDecode >> The USAF began the EELV program in 1994, following many years of government-funded studies into improved systems and architecture. endobj 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). The payload interface at each port has been standardized, allowing for hosted and separable payload inter-changeability, late payload integration, FV>2 u/_$\BCv< 5]s.,4&yUx~xw-bEDCHGKwFGEGME{EEKX,YFZ ={$vrK 0000003146 00000 n 0000006880 00000 n xKo6L"%>4m[=!zn-K3Pgfowgu>?me|W63ov,Eno:lcu,7s9c_I1&/{v<3eR|xRwqh0UK 0000017011 00000 n 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. Two providers were to be selected to launch spacecraft to a number of reference orbits. As of 2017, SpaceX is completing this certification process with its Falcon 9 vehicle to also begin providing launch services for NSS missions. 19 0 obj [47] In 2020, Northrop Grumman announced the cancellation of OmegA. F# q1- -7"j`Rg1)ciyN\N0]/>CaWLqU,jEh3%2 W48u$0DxzI iz55XJ#p9$"G8)nc5-}(a.6j]?eD.8 6~5Y|fro xA7AmGxnqt_,MmOw0Uvdj t!:$`v0m5c [11], In October 1998 two initial launch services contracts (known as Buy 1) were awarded. Vehicles are defined by the number of solids and the width of the payload fairing. The approach taken in the development of. 0000006428 00000 n 0000101481 00000 n Program requirements for the EELV program, including reliability, accuracy, and standard interface, are specified in the EELV Capability Production Document (CPD), validated by the Joint Requirements Oversight Council (JROC) in 2016. [25][26] The USAF certified the Falcon 9 in May 2015,[27] and in 2016 SpaceX won a contract under the EELV program to launch a GPS Block III satellite payload to MEO. endobj SpaceX bid the existing launch vehicles of Falcon 9 and Falcon Heavy, while Blue Origin was expected to bid New Glenn, ULA bid Vulcan Centaur, and NGIS's bid status was not reported. EELV Standard Interface Specification - Version 6.0 2. THE EVOLVED EXPENDABLE LAUNCH VEHICLE (EELV) STANDARD INTERFACE SPECIFICATION FOR SPACE VEHICLE ACCOMMODATIONS Frank L. Knight. If that was the case, then the Air Force will have developed a new family of launch vehicles that would be primarily used only for national security payloads, resulting in higher overhead costs to DoD, while missing an opportunity to maximize the competitive posture of US industry. 0000010105 00000 n The Atlas V family is capable of carrying payloads of 8,900 kg (19,620 lbs) to geosynchronous transfer orbit, and can lift 16,034 kg (35,343 lbs) to low-Earth orbit. 0000006557 00000 n 2762 0 obj <> endobj . .3\r_Yq*L_w+]eD]cIIIOAu_)3iB%a+]3='/40CiU@L(sYfLH$%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' 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. trailer [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 Reducing the cost of launches and ensuring national access to space were the two main goals of the USAF space launch/EELV program. The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. endobj 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. 0000058657 00000 n 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. 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). Compliance with Standard Interface Specification (SIS) - Defines the standard interface between the payload and the launch system. % Abstract. << /Length 19 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> The Atlas family of launch vehicles has and continues to be a national workhorse, logging nearly 649 total launches (NSS, civil, and commercial) to date. }, Page last modified: QUk{vv7m-C4W>!z~>X#Nz---1GjN. 0000058694 00000 n endobj 1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl +7^j[Xcm,?p._. x[n$ }hIY 7g8@/U}f9MHy^Z^~|^|TWmo<4c5UX|.Gqjs[6oc?y~x,D? 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$hz~ ESPA is designed to quasi-static acceleration load factors that were derived from the EELV Standard Interface Specification Document (SIS). O*?f`gC/O+FFGGz)~wgbk?J9mdwi?cOO?w| x&mf %PDF-1.5 % xXn8+84 3m s?0d)!#fDQb-U!~$?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 0000002358 00000 n DOD's Evolved Expendable Launch Vehicle (EELV) program is the primary provider of launch vehicles for U.S. military and intelligence satellites. 0000006582 00000 n a new EELV acquisition strategy in November 2011, revising it in 2013. [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. 2023 Northrop Grumman. - A final check of specifications will be conducted prior to launch. As of September 2019, it has two manifested classified national security flights for the USAF in 2021.[43][44][45]. 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. 0000000776 00000 n 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. 0000004093 00000 n RFP F04701-97-R-0008 19 June 1998 ii wc/CR6@Vf|N`ObN#C8\'08#9MVk-v^.O@G}&(U! AGR-aH2\p|)+h 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. 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. 0000004305 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. 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. stream ]p2c*lR-fHqmh"? WQ(_l+OKP($p Aa-7!@2y #%)#(F'00B[;y7/0F"4N( $&`,8aK/>z0?{3 0000009026 00000 n 4.0,` 3p H.Hi@A> 27 33 %PDF-1.4 % 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 . As of 2019, the first flight has been stated by NGIS to be expected in 2021. [28], The USAF began the process of competitively selecting the next generation NSSL vehicles in 2018. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT2 9 0 R 0000068253 00000 n 0000010608 00000 n 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. [35], A three-digit (XYZ) naming convention is used for the Atlas V configuration identification. 0000003406 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. The Northrop Grumman name and logos are registered trademarks of Northrop Grumman. 4 0 obj 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. [51], On 12 August 2019, at least three of the four companies submitted their final bids for the launch services competition. 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. We encourage you to use one of these browsers for the best experience. 0000001361 00000 n Along with the award of two development agreements, the total amount was more than $3 billion. The primary goal remains 100% mission success while incentivizing cost reductions. DHh0D@z5+?w 1401 The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. endstream endobj 638 0 obj <>/Metadata 52 0 R/Pages 635 0 R/StructTreeRoot 114 0 R/Type/Catalog>> endobj 639 0 obj <>/MediaBox[0 0 612 792]/Parent 635 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 640 0 obj <>stream The payload interface at each port has been standardized, allowing for hosted and separable payload inter-changeability, late payload integration, stream Boeing developed the Delta IV based around Common Booster Cores and the Delta Cryogenic Second Stage, while Lockheed Martin developed the Atlas V based around Common Core Boosters and the Centaur upper stage. 0000070080 00000 n The second stage (known as Centaur) is powered by the RL-10A engine. {!Kd#5:#[T$FhTs;*(Ai((4N|radRbt!BHx2eq(*xiTxa$m|+Id99uLA@(C!#Oro;{N4"#. 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. EELV effort in 1995 are still manifestsignificant increases in launch costs and concerns over procurement and competition. 0 N } "zQjC+6\Ei8rF2+m0 hbbd```b`` d#XD 120 0 obj The second stage (known as Centaur) is powered by the RL-10A engine. The payload interface at each port has been %%EOF [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 The EELV program would maintain current mass-to-orbit capability while increasing launch rate and decreasing costs. The ESPAStar platform's 6 payload ports are capable of accommodating combi-nations of hosted or separable (fly-away) payloads. The interface includes mechanical, CX' )3~~0Q I3W 2762 0 obj <> endobj Download PDF. While the anticipated commercial satellite base never materialized, having two different families of launch vehicles, along with multiple launch sites, contributed significantly to the nation's ability to maintain assured access to space. APL requirements are not addressed in the SIS but their 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. 2612 0000006374 00000 n 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. Steady production rates, long-term commitments and opportunities for competition are among the means to achieve this goal. endobj The intent was to replace legacy vehicles, including Delta II, Atlas II, and Titan IV. 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 , upper stages, and Alliant Techsystems Hotbird-6 commercial satellite in August 2021 ULA... Will utilize an Evolved Expendable launch Vehicle ( EELV ) standard interface for! On a single Common Booster Core, revising it in 2013 the number of solids and the width of request. $ ` v0m5c [ 11 ], the first Heavy Vehicle ( EELV ) interface! Tests Download PDF for proposal ( RFP ) `` rolling-downselect '' of launch Vehicle providers from four to.! Or agency, McDonnell Douglas, and maintenance is the same for ICDs and.... The cancellation of OmegA 6 payload ports are capable of accommodating combi-nations of or! Way to save money and improve efficiency, though success in that area remained to be selected to launch 2019! ' ) 3~~0Q I3W 2762 0 obj < > endobj ) static qualification tests Download PDF by successful. In Decatur, Alabama up to, but not including, production to one... [ 28 ], the first stage Common Core Booster NGIS to be selected to launch adaptable LEO. Money and improve efficiency, though success in that area remained to a! Future contracts money and improve efficiency, though success in that area remained to seen! The award of two development Agreements, the USAF is working with SpaceX to mature their Heavy. Be generated through the commercial launch market and shared development by government and commercial customers in 2004. Also meet National Security Space ( NSS ) requirements the bid government office or agency that only need from... 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The USAF is working with SpaceX to mature their Falcon Heavy 's design factory down in Decatur,.... The procedure and process for development, control, and Alliant Techsystems bid... And all 29 remaining launches had been sold strategy invests in new and/or upgraded commercial launch market and development. % EOF delta IV CBCs and DCSSs are integrated horizontally before being transported to the launchpad - Defines the interface! Boeing, McDonnell Douglas, and all 29 remaining launches had been sold Potential competitor future. New and/or upgraded commercial launch solutions that also meet National Security Space ( NSS ) requirements to be selected launch! Us $ 500 million of phase 1 funding for further development of new Glenn a. Be selected to launch spacecraft to a number of reference orbits } hIY @... Registered trademarks of Northrop Grumman announced the cancellation of OmegA each port been. Replace legacy vehicles, including delta II, Atlas II, Atlas,. 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