German engineers produce and test 3D-printed rocket engine
by Staff Writers
Berlin (Sputnik) Mar 05, 2019
The new method will allow the weight and production cost of a rocket to be reduced, while increasing payload and implementing more sophisticated cooling systems.
German Aerospace Centre (DLR) in collaboration with SLM Solutions, have successfully created a rocket engine, called BERTA, fully assembled using 3D-printing technology. The engine, which will be used in an Ariane 6 modular rocket developed by the ArianeGroup for the European Space Agency (ESA), is capable of delivering satellites to geostationary transfer or sun-synchronous orbits.
The new production method has allowed the engine's weight to be reduced by 30% thus increasing its effectiveness by 20%, Deutsche Wirtschafts Nachrichten reported. The 3D printing will also enable the use of more sophisticated cooling systems for the combustion chamber, which would be impossible using an ordinary assembling method.
ESA has already conducted its first successful hot fire test of the engine at DLR in Lampoldshausen. The engineers fired BERTA for 560 seconds with a reference thrust of 2.45 kilonewtons (Europe's heavy Ariane 5 rocket produces a thrust of around 6,650 kilonewtons)
Lysan Pfutzenreuter, project manager at DLR Space Management, told online media outlet 3D Printing Industry that 3D-printing manufacture of the rocket engines opens up news paths for the European aerospace industry.
"The successful demonstration of the technology is an important step towards improving the competitiveness of European launcher systems", he said.
Source: Sputnik News
McDermott awarded EPC Contract for largest hydrogen cryogenic sphere ever built for NASA
Houston TX (SPX) Feb 27, 2019
McDermott International, Inc. reports it was awarded a sizeable* contract by Precision Mechanical, Inc. for a double wall liquid hydrogen sphere at the John F. Kennedy Space Center in Cape Canaveral, Florida. The scope of the contract includes the engineering, procurement and construction of the sphere, which will be the largest ever built for NASA. "McDermott's CB and I Storage Tank Solutions has more than a century of experience delivering innovative and complex storage solutions," said Richard ... read more
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