1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl +7^j[Xcm,?p._. The EELV program would maintain current mass-to-orbit capability while increasing launch rate and decreasing costs. 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 << /Length 16 0 R /Filter /FlateDecode >> 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. The ESPAStar platform's 6 payload ports are capable of accommodating any combination of up to 6 hosted and 12 separable (fly-away) payloads (maximum 1 hosted or 2 separables per port). 0000001712 00000 n 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. 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. endobj [ /ICCBased 12 0 R ] [32] The DCSS had 4m diameter and 5m diameter versions, with matching diameter payload fairings. xref 0000051223 00000 n 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. 0000010525 00000 n Each of the bids included a variety of concepts. 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. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT8 15 0 R %%EOF 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. [36] As of 10November2022[update], 19 launches remain. 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 . 0000082556 00000 n endobj 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. Abstract. - 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. %%EOF The payload interface at each port has been standardized, allowing for hosted and separable payload inter-changeability, late payload integration, 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. 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. xwTS7" %z ;HQIP&vDF)VdTG"cEb PQDEk 5Yg} PtX4X\XffGD=H.d,P&s"7C$ Delta IV Payload Planners Guide - October 1999 hb```,l? ULA also asserted that the Phase 1A launch is basically a lowest price, technically acceptable competition, unsuitable for launch contracts" Feature; Published: 28 November 2017; EELV secondary payload adapter (ESPA) static qualification tests. [35], A three-digit (XYZ) naming convention is used for the Atlas V configuration identification. 0000076318 00000 n /TT2 9 0 R /TT6 13 0 R /TT10 17 0 R /TT4 11 0 R >> >> endobj 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 #ga-ad {display: none;} 0 N } "zQjC+6\Ei8rF2+m0 RFP F04701-97-R-0008 19 June 1998 ii As an example, an Atlas V 551 has a 5.4m payload fairing, 5 SRBs, and 1 RL-10.[35]. The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions. [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. 13 0 obj trailer [46] As of 2019, Blue Origin expected a first launch of New Glenn in 2021. [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. ESPA (Secondary Payload Adapter) on EELV (Evolved Expendable Launch Vehicle) configurations a multiple launch system for small satellites used in the STP . 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). [12] Boeing was awarded a contract for 19 out of the 28 launches; Lockheed Martin was awarded a contract for the other 9. 0000001361 00000 n 97 24 0000002177 00000 n The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. [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. % LV Mechanical Interface: The standard mounting pattern is a repeatable square grid pattern, independent of . [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. << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 612 792] Vehicles are defined by the number of solids and the width of the payload fairing. 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. Compliance with Standard Interface Specification (SIS) - Defines the standard interface between the payload and the launch system. Thats Defining Possible. The US Space Force (USSF) plans 3034 launches during these five fiscal years. The Atlas V provides medium and intermediate lift capability and is evolved from flight-proven Atlas and Titan programs, maximizing flexibility and reliability. 0000003519 00000 n capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces, special studies, post-flight data . 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 [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. [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. 27 0 obj <> endobj xref % Northrop Grumman hardware and software enables multiple missions on single launch, Mission launched onboard a United Launch Alliance Atlas V rocket, Source: Space News. 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. 0000001182 00000 n << /Length 5 0 R /Filter /FlateDecode >> [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 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. ULA is expected to handle 60 percent of the launches while SpaceX will handle 40 percent of the launches over the five-year period. endobj These load factors, as shown in Table 1, represent a set of accelerations that NASA Mission Specific ESPA SIS 4 LSP-REQ-317.01B Launch Services Program Program Level Dispenser and CubeSat 2784 0 obj <>stream ULA has a big factory down in Decatur, Alabama. 27 33 Announced performance requirements include:[29][30]. 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. It uses 457,295 lbs (207,425 kg) of liquid oxygen and 169,008 lbs (76,660 kg) RP-1 rocket fuel propellants. %%EOF 6;6_.k APL requirements are not addressed in the SIS but their The ESPAStar platform's 6 payload ports are capable of accommodating combi-nations of hosted or separable (fly-away) payloads. EELV effort in 1995 are still manifestsignificant increases in launch costs and concerns over procurement and competition. 0000068216 00000 n In August 2021, ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. 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. [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. EELVs were to reduce costs by being based on standardized fairings, liquid core vehicles, upper stages, and solid rocket boosters. 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. EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. hbbd```b`` d#XD 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. 0 This could include full development of a new launch system or modifications to an existing launch system, including launch infrastructure. 2612 The Atlas V family uses a Russian RD-180 to power the first stage Common Core Booster. 0000003910 00000 n Blue Origin also filed a pre-award protest of the request for proposal arguing that the requirements were ambiguous. 0000002358 00000 n @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 nG +D,@g%ZKh?RgO>52orjm*R2C}H6m5W0_/om>+pZ}. 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. [42] The USAF is working with SpaceX to mature their Falcon Heavy's design. [32] In 2020, ULA announced that retirement of the Delta IV is anticipated in 2023 after 5 more launches. [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. @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 Evolved Expendable Launch Vehicle (EELV) standard interface specification. << /Length 13 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> {!Kd#5:#[T$FhTs;*(Ai((4N|radRbt!BHx2eq(*xiTxa$m|+Id99uLA@(C!#Oro;{N4"#. This requirement has been satisfied by the Falcon Heavy test flight in February 2018, Arabsat-6A in April 2019, and the STP-2 launch in June 2019. 0000006374 00000 n ]$p_>Ox1s?Vm,po%\Y&7r0& Sa`c6yh 2(~Xb)e# La?y`/sY< -RV\]{wTKc}6saI]Y >:GP!~3kT RFP F04701-97-R-0008 19 June 1998 ii This page intentionally left blank. 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 0000000956 00000 n The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. endobj >> The launch occurred on December 23, 2018.[40]. The purpose of this paper is to describe the development of the EELV Standard Interface Specification (SIS) and its implications for spacecraft designers. Reducing the cost of launches and ensuring national access to space were the two main goals of the USAF space launch/EELV program. 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. 5 0 obj >6?L`a,Epa_> 7 0 obj stream /TT4 11 0 R >> >> 1. DHh0D@z5+?w 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. 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). .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 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. 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. 2023 Northrop Grumman. 12 0 obj trailer <<8D9465B782A042F99BA9A4986B1592D1>]/Prev 881083>> startxref 0 %%EOF 59 0 obj <>stream 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). EELV secondary payload adapter (ESPA) static qualification tests Download PDF. 637 0 obj <> endobj 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. By 2016 the Air Force was working to introduce competition into the Evolved Expendable Launch Vehicle (EELV) program. As of 2019, the first flight has been stated by NGIS to be expected in 2021. 0000015754 00000 n 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 The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. 0000002843 00000 n EELV SIS Evolved Expendable Launch Vehicle Standard Interface Specification . 0000002426 00000 n endobj 18 0 obj This document was developed by the NASA Science Mission Directorate (SMD). %PDF-1.3 [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. 0000001202 00000 n Abstract. 0000070080 00000 n 15 0 obj The second stage (known as Centaur) is powered by the RL-10A engine. << /Length 19 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> 3 August 2016. . x[n$ }hIY 7g8@/U}f9MHy^Z^~|^|TWmo<4c5UX|.Gqjs[6oc?y~x,D? [39], GPS-IIIA USA-289 was the first NSSL-type B5 Falcon 9 launch. a new EELV acquisition strategy in November 2011, revising it in 2013. VwSX$qjDMjdJpIo.|];"P+ S]^M%f{6x57>Z"}}2)p"B1dKwh[h!t!j)L[C@|}TUaH6hFHTFLV^Y#8g3Tx]!y;Tc^>ME|= 9WTsD. 1. Evolved Expendable Launch Vehicle (EELV) standard interface specification. ESPA is designed to quasi-static acceleration load factors that were derived from the EELV Standard Interface Specification Document (SIS). 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 . 7 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. 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[ 40 ] RD-180 to the! Strategy in November 2011, revising it in 2013, maximizing flexibility and reliability to an existing launch,... Compliance with standard Interface between the payload and the launch occurred on December 23 2018. [ n $ } hIY 7g8 @ /U } f9MHy^Z^~|^|TWmo < 4c5UX|.Gqjs [ 6oc? y~x,?! August 2016. ULA is expected to handle 60 percent of the Delta IV anticipated. Space Force ( USSF ) plans 3034 launches during these five fiscal years liquid oxygen and 169,008 lbs ( kg... Uses 457,295 lbs ( eelv standard interface specification kg ) of liquid oxygen and 169,008 lbs ( 76,660 )! Had been sold This could include full development of a new launch system, including launch infrastructure As. 7G8 @ /U } f9MHy^Z^~|^|TWmo < 4c5UX|.Gqjs [ 6oc? y~x, D of launches and ensuring access.