dChan - Q Origins Project Archive

https://www.nasaspaceflight.com/2020/03/astra-darpa-launch-challenge/

Astra and the Defense Advanced Research Projects Agency (DARPA) are readying for the first launch in a dual-mission “launch challenge”. Astra, the launch contractor, is currently conducting final preparations ahead of the launch of their Rocket 3.0 vehicle, nicknamed “1 of 3”. Both missions will launch from the Pacific Spaceport Complex – Alaska (PSCA) in Kodiak, Alaska. The first launch attempt is scheduled for 3:30 PM ET on Monday, the final opportunity of the current window.

Astra and the DARPA launch challenge

The launch will be the third for Astra, coming after two launches in July and November 2018. Both launched from the PSCA in Alaska. These were originally believed to be failures. However, Astra stated that the first was successful, and the second was only “shorter than planned”. Neither were designed to reach orbit, as they didn’t have functioning second stages.

The company was known for operating in almost complete secrecy. Very little was known about their rockets, tests, and launch attempts. The only public sighting of an Astra rocket was by a news helicopter in early 2018. Their first rocket, named “Rocket 1.0”, was spotted being readied for a test at the former Naval Air Station Alameda in Alameda, California – just down the street from their factory.

However, Astra recently came out of the shadows, and has released some information about their operations.

Their current rocket, named “Rocket 3.0”, is a two-stage, five-engine, kerosene and liquid oxygen-powered rocket. The pumps of the first stage engines are powered by electric motors, similar to the Rutherford engines on Rocket Lab’s Electron rocket.

The first stage engines – named “Delphin”, after a dolphin-like Greek sea god – are arranged in a pentagon pattern, which differs from other five-engine arrangements. Notably, the five engines on the Saturn V’s first and second stages were arranged in a cross pattern.