Boeing Statement on SLS Core Hot Fire

Acting NASA Administrator Steve Jurczyk, left, and Rick Gilbrech, director of NASA’s Stennis Space Center, right, watch as the core stage for the first flight of NASA’s Space Launch System rocket undergoes a second hot fire test in the B-2 Test Stand, Thursday, March 18, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for the full-duration of 8 minutes during the test and generated 1.6 million pounds of thrust. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

STENNIS SPACE CENTER, Mississippi, March 18, 2021 (Boeing PR) — Deep space exploration took an important step forward today. The cryogenic core stage for NASA’s Space Launch System (SLS) rocket completed hot fire testing at NASA’s Stennis Space Center as part of the SLS rocket’s Green Run test campaign on the B-2 test stand. The test, which included a full-duration, eight-minute engine burn, demonstrated successful core stage operation and will be used to help certify the stage for flight.

“I want to thank the extraordinary individuals who make up the NASA, Aerojet Rocketdyne and Boeing teams who designed, developed, produced and tested the all-new SLS core stage to enable sustainable human exploration of deep space,” said John Shannon, Boeing SLS vice president and program manager.

NASA Mega Moon Rocket Passes Key Test, Readies for Launch

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a second hot fire test, Thursday, March 18, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for the full-duration of 8 minutes during the test and generated 1.6 million pounds of thrust. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credits: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — The largest rocket element NASA has ever built, the core stage of NASA’s Space Launch System (SLS) rocket, fired its four RS-25 engines for 8 minutes and 19 seconds Thursday at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The successful test, known as a hot fire, is a critical milestone ahead of the agency’s Artemis I mission, which will send an uncrewed Orion spacecraft on a test flight around the Moon and back to Earth, paving the way for future Artemis missions with astronauts.

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NASA Green Run Hot Fire Set for Later Today

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — NASA is targeting a two-hour test window that opens at 3 p.m. EDT Thursday, March 18, for the second hot fire test of the core stage for the agency’s Space Launch System (SLS) rocket at NASA’s Stennis Space Center near Bay St. Louis, Mississippi.

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NASA TV to Air Second Rocket Test for Artemis Moon Missions

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — NASA is targeting a two-hour test window that opens at 3 p.m. EDT Thursday, March 18, for the second hot fire test of the core stage for the agency’s Space Launch System (SLS) rocket at NASA’s Stennis Space Center near Bay St. Louis, Mississippi.

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Green Run Update: NASA Targets March 18 for SLS Hot Fire Test

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — NASA is targeting Thursday, March 18 for the second hot fire of the Space Launch System (SLS) rocket’s core stage at NASA’s Stennis Space Center near Bay St. Louis, Mississippi.

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Green Run Update: NASA Investigating Valve Performance Before Second Hot Fire

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — NASA’s is reviewing the performance of a valve on the core stage of the Space Launch System rocket before proceeding with a second hot fire test at the agency’s Stennis Space Center near Bay St. Louis, Mississippi.

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Green Run Update: SLS Team Prepares Core Stage for Second Hot Fire Test

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss., February 12, 2021 (NASA PR) — The core stage Green Run test team has completed refurbishment activities and is preparing the Space Launch System (SLS) rocket’s core stage and its four RS-25 engines for a second hot fire test.

After the first SLS core stage hot fire test on Jan. 16 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, the team put the stand and core stage in a configuration so that the stage and stand could be refurbished. This involved installing platforms on the test stand so that technicians could inspect, access, and perform procedures on the hardware.

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NASA Sets Week of Feb. 21 for Repeat of Green Run Test

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — Media are invited to attend NASA’s Space Launch System (SLS) rocket’s  second Green Run hot fire – a test of the rocket’s core stage and all of its integrated systems before its flight on the Artemis I lunar mission. NASA is targeting the week of Feb. 21 for the test in the B-2 Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The date for the test will be set following the test readiness review.

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Green Run Update: NASA Proceeds With Plans for Second SLS Core Stage Hot Fire Test

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

HUNTSVILLE, Ala. (NASA PR) — NASA plans to conduct a second Green Run hot fire test as early as the fourth week in February with the Space Launch System (SLS) rocket’s core stage that will launch the Artemis I mission to the Moon. The Green Run is a comprehensive assessment of the rocket’s core stage prior to launching Artemis missions.

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Green Run Update: Hot Fire Met Many Objectives, Test Assessment Underway

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — For the Green Run hot fire test on Jan. 16, NASA set out to acquire test data to support 23 detailed verification objectives. To satisfy the objectives, hot fire test data is used in combination with analysis and testing that has already been completed. These detailed verification objectives are used to certify the design of the Space Launch System rocket’s core stage.

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Rocket Roundup: NASA Doesn’t Get What It Wanted or Needed

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

by Douglas Messier
Managing Editor

There’s an old saying that I made up just the other day. You can’t always get what you want, but if you test enough times, you get what you need.

Yes, I know. It’s unwieldy. And I expect a copyright infringement letter from the Rolling Stones’ shortly. Forgive me; it’s really hard to come up with a brand new saying that sounds old on short notice.

While we wait for the lawyers to weigh in, let’s talk about what happened over the weekend.

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NASA: Early Green Run Engine Shutdown Caused by Conservative Test Parameters; Core Stage in Good Condition

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — The Space Launch System (SLS) rocket Green Run team has reviewed extensive data and completed preliminary inspections that show the rocket’s hardware is in excellent condition after the Green Run test that ignited all the engines at 5:27 p.m. EST at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. After analyzing initial data, the team determined that the shutdown after firing the engines for 67.2-seconds on Jan.16 was triggered by test parameters that were intentionally conservative to ensure the safety of the core stage during the test.

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SLS Green Run Test Ends 1 Minute into 8 Minute Hot Fire

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for a little more than one minute. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. (Credit: NASA/Robert Markowitz)

BAY ST. LOUIS, Miss. (NASA PR) — NASA conducted a hot fire Saturday of the core stage for the agency’s Space Launch System (SLS) rocket that will launch the Artemis I mission to the Moon. The hot fire is the final test of the Green Run series.

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Three Launches & a Hot Fire in Three Days

Fully loading the propellant and detecting no leaks is a major milestone for the Green Run test series. A total of 114 tanker trucks delivered propellant to six propellant barges next to the B-2 Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. (Credits: NASA)

The upcoming holiday weekend (Martin Luther King Day on Monday) will see NASA conduct the long awaited Green Run hot fire of its Space Launch System rocket core and orbital launches by Rocket Lab, Virgin Orbit and SpaceX involving 71 satellites.

Saturday, January 16

Launch Vehicle: Rocket Lab Electron
Mission Name: “Another One Leaves the Crust”
Payload: OHB Group micro communications satellites
Launch Time: 2:41 EST (0741 UTC)
Launch Site: Mahia Peninsula, New Zealand
Webcast: www.rocketlabusa.com (begins 15 minutes prior to launch)

UPDATE: Launch scrubbed as engineers examine sensor data. They have a 10-day launch window.

Hot Fire: Space Launch System Core
Test Window: 5-7 p.m. EST (2200–0000 UTC)
Test Site: Stennis Space Center near Bay St. Louis, Miss.
Webcast: www.nasa.gov (begins at 4:20 p.m. EST/2120 UTC)
Post-test Briefing: Approximately two hours after test completion on NASA website

Sunday, January 17

Launch Vehicle: Virgin Orbit LauncherOne/Cosmic Girl
Mission Name: NASA ELaNa-20 mission
Payloads: 10 CubeSats
Launch Window: 1:00-5:00 p.m. EST (1800-2200 UMT)
Launch Sites: Mojave Air and Space Port, California (Cosmic Girl Boeing 747), Pacific Ocean (LauncherOne)

Monday, January 18

Launch Vehicle: SpaceX Falcon 9
Mission Name: Starlink V1.0-L16
Payloads: 60 Starlink broadband satellites
Launch Time: 8:45 a.m. EST (1345 UTC)
Launch Site: Kennedy Space Center, Fla.
Webcast: www.spacex.com (begins 15 minutes before launch)

NASA TV to Air Hot Fire Test of Rocket Core Stage for Artemis Moon Missions

The Space Launch System (SLS) rocket is completing the Green Run test for the rocket’s core stage, shown installed on the top left side of the B-2 Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. (Credits: NASA/Stennis)

BAY ST. LOUIS, Miss. (NASA PR) — NASA is targeting a two-hour test window that opens at 5 p.m. EST Saturday, Jan. 16, for the hot fire test of NASA’s Space Launch System (SLS) rocket core stage at the agency’s Stennis Space Center near Bay St. Louis, Mississippi. Live coverage will begin at 4:20 p.m. on NASA Television and the agency’s website, followed by a post-test briefing approximately two hours after the test concludes.

Media may submit questions during the post-test briefing by emailing hq-heo-pao@mail.nasa.gov.

The hot fire is the eighth and final test of the Green Run series to ensure the core stage of the SLS rocket is ready to launch Artemis missions to the Moon, beginning with Artemis I. The core stage includes the liquid hydrogen tank and liquid oxygen tank, four RS-25 engines, and the computers, electronics, and avionics that serve as the “brains” of the rocket. During the test, engineers will power up all the core stage systems, load more than 700,000 gallons of cryogenic, or supercold, propellant into the tanks, and fire all four engines at the same time to simulate the stage’s operation during launch, generating 1.6 million pounds of thrust.

The first in a series of increasingly complex missions, Artemis I will test the SLS rocket and Orion spacecraft as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon in 2024.

For more information about the Green Run test series, visit:
 

https://www.nasa.gov/artemisprogram/greenrun