Arrow technology: full-size stainless steel rocket one-stage static ignition is a complete success

CTOnews.com, January 20, according to the official news of Jianyuan Science and Technology, Qianyuan Science and Technology recently carried out three full-size stainless steel rocket XZH-1 D1 one-stage static ignition tests at the Bengbu test base in Anhui Province, all of which were successful.

Qianyuan Technology said that the test product uses a full-size 4.2m thin-walled stainless steel tank and structure, supporting a LY-70 70-ton liquid oxygen methane engine. The first ignition test state is process matching, the second ignition test state is two starts, and the third ignition test state is low liquid level starting, covering suborbital flight and splash recovery profile.

▲ source: according to the introduction of Arrow Technology, the static ignition test carried out by Arrow Technology is the first actual combat of the domestic medium and large liquid launch vehicle using the "stainless steel + liquid oxygen methane" program, marking a major breakthrough in the engineering application of stainless steel materials in rockets. Static ignition test is one of the most important tests to verify the status and products of one or all arrows before the first flight.

CTOnews.com learned that in addition to SpaceX, Arrow Technology said that this test was the first time to visually monitor the whole process of filling and ignition by using a camera in the box, especially the monitoring of the pre-cooling state of the filling process, the flow of propellant, the outflow characteristics of gushing springs and the anti-swirl and anti-collapse effect of low liquid level, and obtained the real state and data in the unavailable amount of the rocket.