Blue Origin Continues Qualification Testing of BE-4 Engine

BE-4 engines (Credit: Blue Origin)

Space News has an update on Blue Origin’s development of its BE-4 engine.

The chief executive of Blue Origin says he expects the company’s BE-4 engine to complete qualification testing by the end of the year as the company ramps up work on its New Glenn orbital rocket.

In an April 19 interview during the 34th Space Symposium here, Bob Smith said testing of the BE-4 engine, which uses methane and liquid oxygen propellants, was going well as the company stepped through a methodical process of increased durations and thrust levels.

“We continue to progress along the lines of changing the power levels and going from various throttle settings,” he said. That includes, he said, a test the company announced in March when the engine fired for 114 seconds at 65 percent of rated power. That duration is about half a typical mission duty cycle for the engine.

“We continue to roll through our test program and hope to qualify that engine by the end of the year,” he said. “We’re walking our way through that just to make sure we understand and characterize the engine fully.”