Posted on 06/23/2015 8:43:04 PM PDT by BenLurkin
ULA was formed in 2006 as a 50:50 joint venture between Lockheed Martin and Boeing that combined their existing expendable rocket fleet families – the Atlas V and Delta IV – under one roof.
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“In their mind that meant having two independent rocket systems that could essentially do the same jobs. So we have both the Atlas V and the Delta IV. But in a competitive environment you can well imagine that that requirement drives your costs significantly higher than they need to be.”
ULA actually offered three rocket families after the merger, when only one was really needed.
“So our first conclusion on how to be competitive was how do we go from supporting three rocket families – including the Delta II – off of 6 launch pads, to our ultimate aim of getting down to just 1 rocket family of off just 2 pads – one on each coast. So, that is the most cost effective structure that we could come up with and the most competitive.”
Developing a new first stage engine not subject to international tensions was another primary impetus.
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The RD-180’s will be replaced with a pair of BE-4 engines from Blue Origin, the highly secretive aerospace firm founded by Jeff Bezos, billionaire founder of Amazon. The revolutionary BE-4 engines are fueled by liquefied natural gas and liquid oxygen and will produce about 1.1 million pounds of thrust vs. about 900,000 pounds of thrust for the RD-180, a significant enhancement in thrust.
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Although the BE-4 is ULA’s primary choice to replace the RD-180, ULA is also investing in development of a backup engine, the AR-1 from Aerojet-Rocketdyne, in case the BE-4 faces unexpected delays.
(Excerpt) Read more at universetoday.com ...
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