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Attachment 6 Evaluation Criteria. [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]. endstream hbbd```b`` d#XD 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. 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. 1a-,,3o WYLd ,/HHVYNE^IUAQM]OGK\H[W&?'#/+/P3KrxTDl\BJX|jbRdtLQn~qIN^AvZizaFfVCYumUcEkSe}KysM]&On;,Z2}sl
+7^j[Xcm,?p._. [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]. 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. ULA stated it did not have any Atlas engines available to bid in order to submit a timely proposal. trailer
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/*@N]\BN\#`"H`~ez18G&,\0Npd}o$euJ qf3y,.$v=mFWU>f(, 2 0 obj The purpose of this paper is to describe the development of the EELV Standard Interface Specification (SIS) and its implications for spacecraft designers. Standard payload interfaces were touted as another way to save money and improve efficiency, though success in that area remained to be seen. 0000001790 00000 n
The EELV program was initiated in 1994 and planned to be a "rolling-downselect" of launch vehicle providers from four to one. stream /TT4 11 0 R >> >> ESPA (Secondary Payload Adapter) on EELV (Evolved Expendable Launch Vehicle) configurations a multiple launch system for small satellites used in the STP . [32] The DCSS had 4m diameter and 5m diameter versions, with matching diameter payload fairings. Up to five solid rocket boosters can be added to augment performance. hbbd```b`` d#XD endobj ULA is expected to handle 60 percent of the launches while SpaceX will handle 40 percent of the launches over the five-year period. hb```,l? 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. 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. FV>2 u/_$\BCv< 5]s.,4&yUx~xw-bEDCHGKwFGEGME{EEKX,YFZ ={$vrK Interface Specifications (ISs) are specific types of ICDs that only need approval from one government office or agency. The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. endobj 27 33
>> Announced performance requirements include:[29][30]. stream FV>2 u/_$\BCv< 5]s.,4&yUx~xw-bEDCHGKwFGEGME{EEKX,YFZ ={$vrK 0000001182 00000 n
hb```,l? May 2016 : Space and Missile Systems Center . [41] He clarified: "I certified them to compete last year" and "[o]ne of the requirements behind certification is to fly three missions." [39], GPS-IIIA USA-289 was the first NSSL-type B5 Falcon 9 launch. Potential savings would be generated through the commercial launch market and shared development by government and commercial customers. 0000006582 00000 n
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[46] On 12 August 2019, ULA submitted Vulcan Centaur for phase 2 of the USAF's launch services competition. 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. This website is best viewed in browsers such as: Edge, Firefox, Chrome, or Safari. Thats Defining Possible. 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 any combination of up to 6 hosted and 12 separable (fly-away) payloads (maximum 1 hosted or 2 separables per port). New ICD Revisions in Development 8/22/2022: UPREVISIONS RELEASED 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). [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. @(l(MW a 67E1efWmh8s`e3XY|t+$8f`~!Af6 Dy3 The intent was to replace legacy vehicles, including Delta II, Atlas II, and Titan IV. << /Length 22 0 R /Filter /FlateDecode >> -2- El Segundo, California 90245-2808 : DISTRIBUTION STATEMENT A: Approved for public release. The EELV program is in the portfolio. For almost 10 years, the EELV program had only one company capable of providing launches. endobj 0000006374 00000 n
[14] The USAF moved 7 launches from Delta IV to Atlas V.[15] To end litigation and competition for a limited market, both companies agreed to form the United Launch Alliance (ULA) joint venture. 0000101481 00000 n
Under Solicitation Number FA8811-16-R-000X, released 14 March 2017, Air Force Space Command - Space and Missile Systems Center draft solicitation ws to implement the Evolved Expendable Launch Vehicle (EELV) strategy to transition from the use of "non-allied" [aka Russian RD-180] engines and to implement affordable assured access to space via sustainable competition with commercial providers. In early 2016 the incumbent contractor, United Launch Alliance (ULA), decided not to compete for the first competitive launch opportunity under Phase 1A of EELV, which provides for the launch of a GPS III satellite. DOD's Evolved Expendable Launch Vehicle (EELV) program is the primary provider of launch vehicles for U.S. military and intelligence satellites. i`zN$KgyHDis+hj^@BV/C4v3bKAj. That strategy was designed to (1) . [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. endobj hb``g``f`f`. 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~ Abstract. [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. 0000006557 00000 n
ULA also asserted that the Phase 1A launch is basically a lowest price, technically acceptable competition, unsuitable for launch contracts"
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+7^j[Xcm,?p._. As an example, an Atlas V 551 has a 5.4m payload fairing, 5 SRBs, and 1 RL-10.[35]. 1. xXn8+84
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Blue Origin was awarded $500 million of phase 1 funding for further development of New Glenn as a potential competitor in future contracts. 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 . 4.0,`
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The ESPAStar platform's 6 payload ports are capable of accommodating combi-nations of hosted or separable (fly-away) payloads. As of September 2019, it has two manifested classified national security flights for the USAF in 2021.[43][44][45]. The interface includes mechanical, hbbd```b`` D:H3YH22H5,)qS =A&]8 I
By 2016 the Air Force was working to introduce competition into the Evolved Expendable Launch Vehicle (EELV) program. mimics the EELV 157.5 cm (62.01 in) Standard Interface Plane. DOD expects to spend about $9.5 billion over the next 5 years acquiring launch hardware and services through the program, during which time it will also be working to certify new launch providers. A new EELV Acquisition Strategy was approved in November 2011 which recognizes only the Atlas V and Delta IV can currently provide reliable launch services to meet NSS requirements but also seeks to take advantage of the growing potential of additional commercial space launch providers. }, Page last modified:
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As of 2019, these launch vehicles were the primary methods for launching U.S. military satellites, along with the Falcon 9 developed by SpaceX. We encourage you to use one of these browsers for the best experience. x[n$
}hIY 7g8@/U}f9MHy^Z^~|^|TWmo<4c5UX|.Gqjs[6oc?y~x,D? This could include full development of a new launch system or modifications to an existing launch system, including launch infrastructure. This page was last edited on 19 February 2023, at 18:43. xref 0000017080 00000 n
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Up to five solid rocket boosters can be added to augment performance. 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. 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 . Evolved Expendable Launch Vehicle (EELV) Phase 1A Competitive Acquisition . 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. << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT2 9 0 R hb```B ;6hvfa. 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. A1vjp zN6p\W
pG@ endstream << /Length 16 0 R /Filter /FlateDecode >> [ /ICCBased 18 0 R ] Blue Origin also filed a pre-award protest of the request for proposal arguing that the requirements were ambiguous. . 7 0 obj endobj At the same time, another 14 boosters were to be procured competitively beginning in 2015, with the initial launches to be performed in 2017. Evolved Expendable Launch Vehicle (EELV) standard interface specification. [38] This launcher features a reusable first stage and fairings, which lowers the cost per mission. %PDF-1.3 7 0 obj [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 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. Opportunity which will utilize an Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) or ESPA Grande. . 0000015937 00000 n
RFP F04701-97-R-0008 19 June 1998 ii This page intentionally left blank. << /Length 5 0 R /Filter /FlateDecode >> The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions. 2612 [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. 0000000776 00000 n
The EELV program is in the portfolio of the Program Executive Officer (PEO) for Space at the Space and Missile Systems Center (SMC). 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. 0000027829 00000 n
ESPA is designed to quasi-static acceleration load factors that were derived from the EELV Standard Interface Specification Document (SIS). 6 0 obj 31-03-2017 19:36:21 ZULU, Evolved Expendable Launch Vehicle (EELV) Launch Service Agreements (LSA) Draft Request for Proposal (RFP). [48][47] 0000003146 00000 n
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 STANDARD INTERFACE SPECIFICATION VERSION 5.0. 3 August 2016. . {!Kd#5:#[T$FhTs;*(Ai((4N|radRbt!BHx2eq(*xiTxa$m|+Id99uLA@(C!#Oro;{N4"#. 0000015754 00000 n
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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. 0000068253 00000 n
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[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. 2784 0 obj
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2 0 obj To do so, ULA has had to maintain sufficient cost accounting systems within the company. EELV STANDARD INTERFACE SPECIFICATION VERSION 5.0. Boeing received $1.38 billion, and Lockheed Martin received $650 million for the launches. [47] In 2020, Northrop Grumman announced the cancellation of OmegA. Download PDF. {,M?TSwjj:2U|=ney(ymjvkeY&AeZDuL2 M#oWX~s iAzj]:a[Fd
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13 0 obj [12], In 2003, Boeing was found to be in possession of proprietary documents from Lockheed Martin. stream 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. 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. - A final check of specifications will be conducted prior to launch. The Falcon Heavy is a heavy-lift rocket developed and produced by SpaceX. 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 . [46] As of 2019, Blue Origin expected a first launch of New Glenn in 2021. endobj K0iABZyCAP8C@&*CP=#t] 4}a
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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). 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. 0000003519 00000 n
The second stage (known as Centaur) is powered by the RL-10A engine. 0000016479 00000 n
Evolved Expendable Launch Vehicle Secondary Payload Adapter (ESPA) Rideshare Users Guide, and Do-no-harm Requirements Document . endobj 15 0 obj As of 2017, SpaceX is completing this certification process with its Falcon 9 vehicle to also begin providing launch services for NSS missions. 6 0 obj 0000002177 00000 n
The USAF began the EELV program in 1994, following many years of government-funded studies into improved systems and architecture. The primary goal remains 100% mission success while incentivizing cost reductions. 0000070080 00000 n
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. G. E. Sanford 1 & J. S. Welsh 2 . The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. 0000082556 00000 n
endobj << /Length 19 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> Two providers were to be selected to launch spacecraft to a number of reference orbits. The Atlas V provides medium and intermediate lift capability and is evolved from flight-proven Atlas and Titan programs, maximizing flexibility and reliability. stream 0000004305 00000 n
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. 0000004200 00000 n
<< /ProcSet [ /PDF /Text ] /ColorSpace << /Cs1 7 0 R >> /Font << /TT8 15 0 R On this Wikipedia the language links are at the top of the page across from the article title. 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.
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. The procedure and process for development, control, and maintenance is the same for ICDs and ISs. 0000010608 00000 n
1320 Steady production rates, long-term commitments and opportunities for competition are among the means to achieve this goal. xKo6L"%>4m[=!zn-K3Pgfowgu>?me|W63ov,Eno:lcu,7s9c_I1&/{v<3eR|xRwqh0UK [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. 0 Photo Credit: U.S. Space Force. 0000002358 00000 n
DULLES, Va. Dec. 11, 2017-- Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, today announced it has been awarded a contract from the U.S. Air Force Space and Missiles Center (AFSMC) to build LDPE, or the Long Duration Propulsive Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) space platform. [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. Delta IV CBCs and DCSSs are integrated horizontally before being transported to the launchpad. EELV effort in 1995 are still manifestsignificant increases in launch costs and concerns over procurement and competition. startxref 0000004649 00000 n
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. /TT2 9 0 R /TT6 13 0 R /TT10 17 0 R /TT4 11 0 R >> >> 0000076318 00000 n
<< /Length 13 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> Reducing the cost of launches and ensuring national access to space were the two main goals of the USAF space launch/EELV program. ;mnf4fb3/!s}Wz#I/MeFg_$ob$bOR JDs5~7^U.BV*p3]2j,BBR3Pq2,LnVL{gLj}U;g;bqGQY7C85V7y3fi=fp"n0+ddobk Delta IV's inaugural flight was marked by the successful launch of a commercial satellite on a Medium-Plus (4,2) in November 2002. hb```|+a1b0K5IiJs!C}D&m%[Xuddtu p|6:O3|3v)-F'M1*vm^b1:JeSzr60v0ht00t@0Gb0$cDHG Abt:2{$8naMeJC1kYDHn)_2u hH1=l ?fA(4 F 1@DCPog|yReAZirIrj{*0X}0b{37Vl [mvK7!,ubg-Yj0S(.rIW~,vMJro 8>-\8~-Yw0z
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xBHNxZ9RRJhkL1hV0 LHJ9KDv"iE^p!+X$(/MDP_dP =|>hPHICt4B@n#,sqBGFY!u&i-dTr2e$'bWv7BiT|nT^F)U9K,rN0bi\2tR0,; Yz{:|*sO=c>z+Mf2BB.4Y!KRcW 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. 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. The Atlas V family uses a Russian RD-180 to power the first stage Common Core Booster. [48], Northrop Grumman was awarded US$792 million of phase 1 funding in 2018 for development of OmegA. 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). [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.
Evolved Expendable Launch Vehicle Secondary Payload Adapter System Interface Specifications For . 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). EELV was important not only to reducing the launch costs of the Department of Defense, but also to the continued world-wide competitiveness of the US commercial launch industry. [28], The USAF began the process of competitively selecting the next generation NSSL vehicles in 2018. 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. 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 Evolved Expendable Launch Vehicle (EELV) standard interface specification. 0000005030 00000 n
Category A payloads fit within a 4m diameter payload envelope, category B payloads fit within a 5m diameter payload envelope, and category C payloads require an extended 5m diameter envelope. 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. 4 0 obj Vehicles are defined by the number of solids and the width of the payload fairing. 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. Senator Richard Shelby is from Alabama. This document was developed by the NASA Science Mission Directorate (SMD). Along with the award of two development agreements, the total amount was more than $3 billion. 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. nG +D,@g%ZKh?RgO>52orjm*R2C}H6m5W0_/om>+pZ}. In August 2021, ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. <> 1. 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. [13] Boeing and Lockheed Martin were each awarded US$500 million for the final phase of the bid. [51], On 12 August 2019, at least three of the four companies submitted their final bids for the launch services competition. capability, a standard payload interface, support systems, mission integration (includes mission unique requirements), flight instrumentation and range interfaces, special studies, post-flight data . The approach taken in the development of. endstream
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[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. 27 0 obj
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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 . Expendable launch system program of the United States Space Force, List of Falcon 9 and Falcon Heavy launches (20102019) 2018, "Space Systems Command Celebrates First Anniversary as USSF Field Command", "JUST IN: National Reconnaissance Office Embracing Commercial Tech", "Defense Primer: National Security Space Launch", "EELV isn't what it used to be: Air Force changes launch program name", "Air Force establishes National Security Space Launch program", "National Security Presidential Directive 40: U.S. Space Transportation Policy", "Two Former Boeing Managers Charged in Plot to Steal Trade Secrets from Lockheed Martin", "Pentagon strips 7 launches from Boeing Delta 4 rocket", "Reusable Successor To EELV Moving Ahead", "Prototype Reusable Rocket Effort Felled by U.S. Budget Woes", "EELV Update: A Split Decision and a New Beginning", "SpaceX Awarded Two EELV-Class Missions from the United States Air Force", "After successful landing, SpaceX to sue Air Force to compete for launch contracts", "SpaceX wins intermediate victory over US in launch contract case", "SpaceX says rocket purchases violate Russian sanctions, gets injunction", "SpaceX elbows into Air Force launch program after dropping lawsuit", "SpaceX, Air Force Settle Lawsuit over ULA Blockbuy", "SpaceX Falcon 9 Certified for Military Launches", "SpaceX wins $82 million contract for 2018 Falcon 9 launch of GPS 3 satellite", Nine reference orbits & payloads for USDoD space missions, "DOD Releases Fiscal Year 2021 Budget Proposal", "ULA Delta IV launches the NROL-25 military satellite from VAFB", "United Launch Alliance Successfully Launches GPS III Satellite for U.S. Air Force Space and Missile Systems Center", "Delta IV Medium's well-earned retirement with GPS finale", "ULA stops selling its centerpiece Atlas V, setting path for the rocket's retirement", "ULA targeting September 26 for next Delta 4-Heavy launch attempt", "SpaceX flies historic 10th mission of a Falcon 9 as Starlink constellation expands", "Air Force requirements will keep SpaceX from landing Falcon 9 booster after GPS launch", "Air Force certified Falcon Heavy for national security launch, but more work needed to meet required orbits", "Air Force certified Falcon Heavy for national security launch but more work needed to meet required orbits", SpaceX wins $130 million military launch contract for Falcon Heavy, U.S. department of defense - Contracts for February 19, 2019, SMC Issues Final RFP For Five EELV Launches; SBIRS & 4 Classified Payloads, "Air Force Awards Launch Vehicle Development Contracts to Blue Origin Northrop Grummand ULA", "Pentagon picks SpaceX and ULA to remain its primary launch providers", "In a consequential decision, Air Force picks its rockets for mid-2020s launches", "Northrop Grumman to terminate OmegA rocket program", "Vulcan Centaur Rocket on Schedule for First Flight in 2021: ULA Submits Proposal for U.S. Air Force's Launch Services Competition", "Blue Origin files protest challenging 'flawed' Air Force strategy for choosing launches", https://en.wikipedia.org/w/index.php?title=National_Security_Space_Launch&oldid=1140354433, Space launch vehicles of the United States, Pages with non-numeric formatnum arguments, Short description is different from Wikidata, Articles containing potentially dated statements from November 2022, All articles containing potentially dated statements, Wikipedia articles in need of updating from June 2020, All Wikipedia articles in need of updating, All Wikipedia articles written in American English, Creative Commons Attribution-ShareAlike License 3.0. place critical United States Government assets and capabilities into space; augment space-based capabilities in a timely manner in the event of increased operational needs or minimize disruptions due to on-orbit satellite failures, launch failures, or deliberate actions against U.S. space assets; support government and commercial human space flight. 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