ABL Space Systems says a test incident that destroyed the upper stage of its RS1 rocket last week will delay that vehicle’s first flight by three months as it identifies and corrects the failure’s root cause.

The post ABL Space Systems test accident to delay first launch by three months appeared first on SpaceNews.

After spending most of 2020 and all of 2021 struggling with the expendable H3’s novel LE-9 main engine, officials with the Japan Aerospace Exploration Agency (JAXA) told reporters last week that the H3 will not be ready to launch by the end of March as previously hoped.

The post Japan’s H3 rocket further delayed by engine woes appeared first on SpaceNews.

Why Use an Inducer? Suppose you want to build a turbopump to increase the pressure of your working fluid. However, you find that the fluid that you are working with keeps vaporizing in the impellers you design, causing all sorts of performance issues. What can you do in this case? One solution is to design Read More...

The post Inducer Design Considerations and its Effect on Turbopump Cavitation first appeared on Turbomachinery blog.

Most designers associate drilled nozzles in turbomachinery with something exotic, uncharted, and specific only to a minuscule amount of high-loaded turbines operating with a high-pressure drop. Meanwhile, many engineers are not aware that this nozzle design has been applied since the very first turbomachines. Karl Gustaf Patrik de Laval patented a turbine with asymmetric convergent-divergent Read More...

The post Drilled Nozzle Application in Supersonic Turbines first appeared on Turbomachinery blog.