Firefly tests aerospike engine

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The competition heats up: Firefly Space Systems has successfully tested its aerospike engine.

They are, like Virgin Galactic and Rocket Lab, aiming for the smallsat market, and hope to fly their first launch by 2018.

Posted from Los Angeles, where I am stranded for the nighr because my flight to Tucson today was cancelled due to bad weather.


One comment

  • Edward

    The aerospike rocket engine dates back to the 1960s, when we had a lot of ideas for space exploration. Most people and articles seem to talk about the linear aerospike – and the article in the post links to a paper on linear aerospikes — but Firefly’s engine looks like the original circular variety. Here is a five-minute video on them:

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