Business

September 7, 2012

ATK, United Launch Alliance successfully test GEM-60 motor

ATK and United Launch Alliance conducted a successful cold-temperature ground test Sept. 6 of a Graphite Epoxy Motor (GEM-60) solid rocket motor used to boost ULA’s Delta IV launch vehicles.

The 60-inch diameter and 53-feet long motor, which was chilled to a core temperature of 30 degrees F, performed as designed, producing approximately 270,000 pounds of thrust and burned for 90 seconds. The test was the second in a series to qualify new fixed and vectorable nozzles manufactured by ATK for flight readiness.

“This test further qualifies ATK’s in-house capabilities in manufacturing commercial nozzles as flight ready,” said Scott Lehr, vice president and general manager, ATK Aerospace Group, Defense & Commercial Division. “Utilizing ATK nozzles not only provides better value to our customer, it also helps further secure employment of our skilled workforce.”

During the GEM-60 static motor firing, the rocket motor performed at cold temperatures within specifications. The successful test qualifies the new fixed nozzle for flight motors and validates the performance of new nozzle insulation at the lowest range of operational temperatures.

“GEM-60 motors have successfully boosted ULA’s Delta IV Medium+ launch vehicles 11 times since 2002,” said Mark Wilkins, ULA’s vice president of Program Operations. “These ground tests are an important part of qualifying modifications and upgrades to flight hardware, as well as ensuring mission success on future flights.”

The GEM-60 motor is a strap-on booster that was developed for ULA by ATK in 2000 to increase the payload-to-orbit capability of the Delta IV Medium+ launch vehicle. The first two-motor configuration boosted the inaugural flight of the Delta IV launch vehicle family in November 2002, and the first four-motor configuration flew in 2009.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines April 24, 2015

News: More than $1 billion in U.S. emergency reconstruction aid goes missing in Afghanistan - A total of $1.3 billion that the Pentagon shipped to its force commanders in Afghanistan between 2004 and 2014 for the most critical reconstruction projects can’t be accounted for by the Defense Department, 60 percent of all such spending under an...
 
 

News Briefs April 24, 2015

German defense minister: widely used rifle has no future A widely used assault rifle has “no future” with the German military in its current form, Germany’s defense minister said April 22, escalating a dispute over the weapon’s alleged shortcomings. Ursula von der Leyen said last month that a study showed the G36 rifle has a...
 
 
Army photograph

Composites key to tougher, lighter armaments

Army photograph XM-360 test firing at Aberdeen Proving Ground, Md., in 2007, is shown. The Army is on the cusp of revolutionizing materials that go into armament construction, making for stronger, lighter and more durable weapo...
 

 

Northrop Grumman signs long-term agreement with Raytheon

Northrop Grumman has entered a long-term agreement with Raytheon to supply its LN-200 Inertial Measurement Unit for Raytheon optical targeting systems. The long-term agreement with Raytheon’s Space and Airborne Systems business extends through 2018. The LN-200 provides camera stabilization on optical targeting systems that conduct long-range surveillance and target acquisition for various...
 
 

NTTR supports first F-35B integration into USMC’s weapons school exercise

The Nevada Test and Training Range was part of history April 21, when four U.S. Marine Corps-assigned F-35B Lightning IIs participated in its first Marine Corps’ Final Exercise of the Weapons and Tactics Instructor course on the NTTR’s ranges. The Final Exercise, or FINEX, is the capstone event to the U.S. Marine Corps Marine Aviation...
 
 
AAR-Textron

AAR awarded new contract from Bell Helicopter Textron to support T64 engines

AAR announced April 22 that Bell Helicopter Textron Inc. awarded its Defense Systems & Logistics business unit a contract providing warehouse and logistics services in support of upgrading T64 engines for the Bell V-280 Val...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>