Shulou(Shulou.com)11/24 Report--

CTOnews.com April 6 news, Rosefinch 2 remote launch vehicle on December 14,2022 in Jiuquan satellite launch center ignition takeoff, but due to abnormal shutdown of the cruise aircraft caused launch failure.

Subsequently, Blue Arrow Aerospace found out the cause of the failure, passed the zero-return review, and announced the full start of the general assembly test of the Rosefinch-2 remote launch vehicle, quickly implemented the fault improvement measures, closely organized the resumption of the Rosefinch-2 flight, and ensured the continuous success of the follow-up launch mission.

Officials announced that the Rosefinch-2 Yao-2 launch vehicle had completed final assembly at Jiaxing Blue Arrow Space Center at the end of March and was ready for delivery. At present, Rosefinch II remote rocket has entered the general test stage, after the completion of the general test work, more detailed factory quality review and state preparation work will be carried out.

According to introduction, Rosefinch-2 rocket opened final assembly in November 2022, marking that the first batch of Rosefinch-2 rocket products began to enter mass production stage.

In the final assembly process, the engineer further optimized the docking process of the first-stage engine: the lifting docking design of the first-stage engine was designed as vehicle docking, which simplified the installation and turnover process and improved the quality and efficiency of product docking; the process quantitative control was carried out on the outer diameter of the catheter coating layer to solve the problem of poor installation of the catheter during installation; the requirements for inner cavity inspection and multimedia recording were added to eliminate the problem of excess materials in the filter of the storage tank; The algorithm of mass center of mass of the two-stage rocket body and fairing is optimized, and the algorithm correction and calibration of the test piece are carried out in advance, which effectively ensures the measurement accuracy and the stability of repeated measurement.

CTOnews.com learned from the official: Rosefinch-2 remote-2 launch vehicle is a two-stage cryogenic liquid launch vehicle with a body diameter of 3.35 meters, a total length of 49.5 meters, a takeoff mass of 219 tons and a takeoff thrust of 268 tons. The first stage of the rocket adopts four "Tianque"80-ton liquid oxygen methane engines in parallel; the second stage of the rocket engine adopts a single "Tianque"80-ton liquid oxygen methane engine and a "Tianque"10-ton floating liquid oxygen methane engine. The main engine configuration is the same as that of the first stage engine. The cold separation mode is adopted for rocket interstage separation, and the spin separation mode is adopted for fairing separation.

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