Business

June 25, 2014

Aerojet Rocketdyne successfully tests engine made entirely with additive manufacturing

Aerojet Rocketdyne, a GenCorp company, successfully completed a series of hot-fire tests on a Bantam demonstration engine built entirely with additive manufacturing. The tests were a key step in the development of a more cost-effective engine family for booster, upper-stage and in-space propulsion.

“The demonstration of this engine, made completely with additive manufacturing, is another significant milestone in our path to changing propulsion affordability,” said Jay Littles, director of Advanced Launch Propulsion Programs at Aerojet Rocketdyne. “We are not just making a stand-alone chamber or injector derived from traditional design approaches. Rather, we are integrating the full capability of additive manufacturing processes to evolve a proven, reliable, affordable design. We are doing so with technical depth and rigor to meet our unparalleled quality and safety requirements.”

The engine, which is normally comprised of dozens of parts, consisted of only three additive-manufactured components: the entire injector and dome assembly; the combustion chamber; and a throat and nozzle section. This particular liquid oxygen/kerosene engine, dubbed “Baby Bantam” (because it is at the lower end of the Bantam engine family thrust range), has a thrust of 5,000 pounds. The Bantam engine family extends up to 200,000 pounds of thrust and can be adapted to use various fuels, including: kerosene, ethanol, methane and storable propellants.

The Bantam engine family is being adapted from the proven design of the Atlas Sustainer engine to take full advantage of additive manufacturing capabilities. The team also was able to reduce total design and manufacturing time from more than a year to a couple of months, and reduce the cost of the engine by approximately 65 percent. This engine test was part of a multi-year Aerojet Rocketdyne additive manufacturing development effort that already has demonstrated successful process development, design tool evolution, component fabrication and component hot-fire tests.




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


 
 

 

Headlines March 27, 2015

News General Dynamics withdraws as T-100 prime contractor General Dynamics Information Systems and Technology has withdrawn itself as the prime contractor on the T-100, the offering for the T-X trainer replacement program based on the Alenia Aermacchi M-346 design.   Business SpaceX’s fight with U.S. Air Force called a clash of perceptions Billionaire Elon Musk’s...
 
 

News Briefs March 27, 2015

Contractor extradited from Iraq pleads guilty in bribes case A man extradited from Iraq in a military contract bribery case has pleaded guilty to three charges in an agreement with federal prosecutors. U.S. District Judge Thomas Rose has scheduled sentencing for July 1 for Metin Atilan. His attorney, Nick Gounaris, says the two sides agreed...
 
 

Ninth Boeing GPS IIF reaches orbit, sends first signals

Boeing Global Positioning System (GPS) IIF satellites are steadily replenishing the orbiting constellation, continuing to improve reliability and accuracy for users around the world. The ninth GPS IIF reached orbit about three hours, 20 minutes after launching today aboard a United Launch Alliance (ULA) Delta IV rocket from Cape Canaveral Air Force Station, Fla., and...
 

 

F-35 Lightning II costs drop, report shows

A recent account of F-35 Lightning II aircraft program costs shows decreases, the Air Force’s F-35 program executive officer told reporters in a media roundtable March 24, 2015. Lt. Gen. Christopher C. Bogdan, citing this year’s selected acquisition report on the aircraft, called the roundtable to clarify cost and performance facts. He also acknowledged the...
 
 
NG-growler2

Northrop Grumman delivers center/aft ‘shipset’ for first international EA-18G Growler

Northrop Grumman photograph Northrop Grumman mechanics perform final quality inspections on the center/aft fuselage shipset produced by the company for the first Australian EA-18G Growler. The subassembly will be delivered to B...
 
 
Navy photograph by Monica McCoy

Navy conducts production acceptance test of Tomahawk missile

Navy photograph by Monica McCoy Members of the Explosive Ordnance Disposal Technology Division team at Naval Surface Warfare Center, Indian Head prepare a Tomahawk missile for a functional ground test at the Large Motor Test Fa...
 




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>