Graphite-Epoxy Motor (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Graphite-Epoxy Motor" in English language version.

refsWebsite

Global rank English rank

14web.archive.org

1^st place

3northropgrumman.com

7,411^th place

5,111^th place

3spacenews.com

1,876^th place

1,225^th place

2x.com

low place

2spaceflightnow.com

2,930^th place

2,204^th place

1agencyq.site

low place

1nro.gov

low place

1youtube.com

9^th place

13^th place

1ulalaunch.com

low place

1aiaa.org

7,940^th place

5,176^th place

1doi.org

2^nd place

1planet4589.org

8,665^th place

6,411^th place

1nasa.gov

75^th place

83^rd place

1ulg.ac.be

7,875^th place

8,199^th place

1spacelaunchreport.com

low place

1nasaspaceflight.com

2,428^th place

1,659^th place

1mediaroom.com

2,662^nd place

1,839^th place

1flightglobal.com

223^rd place

162^nd place

1spaceflight101.com

low place

1spaceflightinsider.com

low place

agencyq.site (Global: low place; English: low place)

prd.ngc.agencyq.site

Propulsion Products Catalog (PDF). Northrop Grumman. pp. 29–39. Retrieved October 24, 2024.

aiaa.org (Global: 7,940^th place; English: 5,176^th place)

arc.aiaa.org

Vlahakis, Nick; Va, Darryl (1989), "Graphite epoxy motors (GEM) for the Delta II launch vehicle", 25th Joint Propulsion Conference, American Institute of Aeronautics and Astronautics, doi:10.2514/6.1989-2313, retrieved May 7, 2022

doi.org (Global: 2^nd place; English: 2^nd place)

Vlahakis, Nick; Va, Darryl (1989), "Graphite epoxy motors (GEM) for the Delta II launch vehicle", 25th Joint Propulsion Conference, American Institute of Aeronautics and Astronautics, doi:10.2514/6.1989-2313, retrieved May 7, 2022

flightglobal.com (Global: 223^rd place; English: 162^nd place)

Furniss, Tim (September 1, 1998). "Boeing Delta III explodes on maiden flight". FlightGlobal. Archived from the original on May 7, 2022. Retrieved May 7, 2022.

mediaroom.com (Global: 2,662^nd place; English: 1,839^th place)

boeing.mediaroom.com

"Boeing Pinpoints Cause of Delta III Failure, Predicts Timely Return to Flight". MediaRoom. Retrieved May 7, 2022.

nasa.gov (Global: 75^th place; English: 83^rd place)

mars.jpl.nasa.gov

"Launch Vehicle: Solid Rocket Motors". JPL. Archived from the original on May 9, 2022. Retrieved July 24, 2014.

nasaspaceflight.com (Global: 2,428^th place; English: 1,659^th place)

Graham, William (July 2, 2014). "ULA Delta II successfully lofts OCO-2 to orbit". NASASpaceflight.com. Archived from the original on May 9, 2022. Retrieved July 22, 2014.

northropgrumman.com (Global: 7,411^th place; English: 5,111^th place)

"GEM 63 Updates". Northrop Grumman. Archived from the original on May 9, 2022. Retrieved May 7, 2022.
"Northrop Grumman GEM Capabilities". Northrop Grumman. Archived from the original on February 3, 2019.
"Propulsion Products Catalog GEM MOTOR SERIES pdf" (PDF).

nro.gov (Global: low place; English: low place)

"NROL-101". www.nro.gov. Archived from the original on May 9, 2022. Retrieved May 9, 2022.

planet4589.org (Global: 8,665^th place; English: 6,411^th place)

McDowell, Jonathan (May 7, 2022). "Launch Log". Jonathan's Space Report. Archived from the original on May 7, 2022. Retrieved May 7, 2022.

spaceflight101.com (Global: low place; English: low place)

"Delta IV Medium+ (4,2)". Spaceflight 101. Retrieved July 24, 2014.

spaceflightinsider.com (Global: low place; English: low place)

Siegel, Jim (August 25, 2019). "Delta IV Medium ends 17-Year run with 100% success". SpaceFlight Insider. Archived from the original on May 9, 2022. Retrieved May 9, 2022.

spaceflightnow.com (Global: 2,930^th place; English: 2,204^th place)

Clark, Stephen (September 22, 2015). "Orbital ATK beats out Aerojet". Archived from the original on May 9, 2022. Retrieved September 23, 2015.
Ray, Justin (November 20, 2002). "Spaceflight Now | Delta Launch Report | Boeing's Delta 4 rocket debuts successfully". spaceflightnow.com. Archived from the original on May 9, 2022. Retrieved May 7, 2022.

spacelaunchreport.com (Global: low place; English: low place)

Kyle, Ed (December 2, 2012). "Delta 2 Productive Years". Space Launch Report. Archived from the original on March 21, 2022. Retrieved July 24, 2014.

spacenews.com (Global: 1,876^th place; English: 1,225^th place)

Foust, Jeff (July 13, 2023). "Centaur modifications push first Vulcan launch to fourth quarter". SpaceNews. Retrieved August 2, 2023.
Foust, Jeff (October 4, 2024). "Vulcan competes second flight despite SRB anomaly". SpaceNews. Retrieved September 4, 2025.
Foust, Jeff (March 12, 2025). "Manufacturing defect blamed for Vulcan solid rocket motor anomaly".

ulalaunch.com (Global: low place; English: low place)

"Vulcan". www.ulalaunch.com. Archived from the original on May 9, 2022. Retrieved May 7, 2022.

ulg.ac.be (Global: 7,875^th place; English: 8,199^th place)

ltas-vis.ulg.ac.be

"ATK Product Catalog" (PDF). ATK. Archived from the original (PDF) on July 30, 2018. Retrieved July 24, 2014.

web.archive.org (Global: 1^st place; English: 1^st place)

"NROL-101". www.nro.gov. Archived from the original on May 9, 2022. Retrieved May 9, 2022.
"GEM 63 Updates". Northrop Grumman. Archived from the original on May 9, 2022. Retrieved May 7, 2022.
"ULA Vulcan Rocket Debut Slips To 2022". Aviation Week. June 22, 2022. Archived from the original on May 9, 2022.
Clark, Stephen (September 22, 2015). "Orbital ATK beats out Aerojet". Archived from the original on May 9, 2022. Retrieved September 23, 2015.
"Vulcan". www.ulalaunch.com. Archived from the original on May 9, 2022. Retrieved May 7, 2022.
McDowell, Jonathan (May 7, 2022). "Launch Log". Jonathan's Space Report. Archived from the original on May 7, 2022. Retrieved May 7, 2022.
"Launch Vehicle: Solid Rocket Motors". JPL. Archived from the original on May 9, 2022. Retrieved July 24, 2014.
"ATK Product Catalog" (PDF). ATK. Archived from the original (PDF) on July 30, 2018. Retrieved July 24, 2014.
"Northrop Grumman GEM Capabilities". Northrop Grumman. Archived from the original on February 3, 2019.
Kyle, Ed (December 2, 2012). "Delta 2 Productive Years". Space Launch Report. Archived from the original on March 21, 2022. Retrieved July 24, 2014.
Graham, William (July 2, 2014). "ULA Delta II successfully lofts OCO-2 to orbit". NASASpaceflight.com. Archived from the original on May 9, 2022. Retrieved July 22, 2014.
Furniss, Tim (September 1, 1998). "Boeing Delta III explodes on maiden flight". FlightGlobal. Archived from the original on May 7, 2022. Retrieved May 7, 2022.
Ray, Justin (November 20, 2002). "Spaceflight Now | Delta Launch Report | Boeing's Delta 4 rocket debuts successfully". spaceflightnow.com. Archived from the original on May 9, 2022. Retrieved May 7, 2022.
Siegel, Jim (August 25, 2019). "Delta IV Medium ends 17-Year run with 100% success". SpaceFlight Insider. Archived from the original on May 9, 2022. Retrieved May 9, 2022.

x.com (Global: low place; English: low place)

Tory Bruno [@torybruno] (April 3, 2018). "Higher performance. Approaching half the cost" (Tweet) – via Twitter.
Northrop Grumman [@northropgrumman] (November 21, 2019). "We've started winding our first GEM 63XLT!" (Tweet). Retrieved May 9, 2022 – via Twitter.

youtube.com (Global: 9^th place; English: 13^th place)

"Launching the Vulcan Rocket For the First Time – Smarter Every Day 297". Smarter Every Day. YouTube. Retrieved May 5, 2024.

Graphite-Epoxy Motor (English Wikipedia)

agencyq.site (Global: low place; English: low place)

prd.ngc.agencyq.site

aiaa.org (Global: 7,940th place; English: 5,176th place)

arc.aiaa.org

doi.org (Global: 2nd place; English: 2nd place)

flightglobal.com (Global: 223rd place; English: 162nd place)

mediaroom.com (Global: 2,662nd place; English: 1,839th place)

boeing.mediaroom.com

nasa.gov (Global: 75th place; English: 83rd place)

mars.jpl.nasa.gov

nasaspaceflight.com (Global: 2,428th place; English: 1,659th place)

northropgrumman.com (Global: 7,411th place; English: 5,111th place)

nro.gov (Global: low place; English: low place)

planet4589.org (Global: 8,665th place; English: 6,411th place)

spaceflight101.com (Global: low place; English: low place)

spaceflightinsider.com (Global: low place; English: low place)

spaceflightnow.com (Global: 2,930th place; English: 2,204th place)

spacelaunchreport.com (Global: low place; English: low place)

spacenews.com (Global: 1,876th place; English: 1,225th place)

ulalaunch.com (Global: low place; English: low place)

ulg.ac.be (Global: 7,875th place; English: 8,199th place)

ltas-vis.ulg.ac.be

web.archive.org (Global: 1st place; English: 1st place)

x.com (Global: low place; English: low place)

youtube.com (Global: 9th place; English: 13th place)

aiaa.org (Global: 7,940^th place; English: 5,176^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

flightglobal.com (Global: 223^rd place; English: 162^nd place)

mediaroom.com (Global: 2,662^nd place; English: 1,839^th place)

nasa.gov (Global: 75^th place; English: 83^rd place)

nasaspaceflight.com (Global: 2,428^th place; English: 1,659^th place)

northropgrumman.com (Global: 7,411^th place; English: 5,111^th place)

planet4589.org (Global: 8,665^th place; English: 6,411^th place)

spaceflightnow.com (Global: 2,930^th place; English: 2,204^th place)

spacenews.com (Global: 1,876^th place; English: 1,225^th place)

ulg.ac.be (Global: 7,875^th place; English: 8,199^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

youtube.com (Global: 9^th place; English: 13^th place)