2024年5月19日 · Compared to more "conventional" rocket engines, BE-4 and Raptor are cheaper, more efficient, environmentally friendly, reusable... basically better in every single way than the engines we've ...

2021年8月5日 · WASHINGTON — United Launch Alliance underestimated the challenges Blue Origin would face in the development, testing and manufacturing of the BE-4 rocket engine, ULA’s CEO Tory Bruno said Aug. 5.

2021年8月5日 · One of the most persistent problems, sources said, is that the BE-4 engine testing and development program has been relatively "hardware poor" in recent years. Effectively, this means that the factory in Washington has not had enough components to build development engines, and this has led to extended periods during which no testing has ...

However, the U.S. Court of Appeals cites a REA as “anything but a ‘routine request for payment.’ It is a remedy payable only when unforeseen or unintended circumstances, such as government modification of the contract, differing site conditions, defective or late-delivered government property or issuance of a stop work order, cause an ...

2022年9月19日 · Using an oxygen-rich staged combustion cycle, BE-4 is capable of producing 2,400 kN (550,000 lbf) thrust with deep throttle capability. The ULA (United Launch Alliance) Vulcan rocket plans to use the BE-4 engine and Blue Origin has designed a Falcon Heavy class New Glenn rocket to use BE-4 engines.

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