Abstract—Results of the implementation of a single concept for the development of the double launch system (SDZ) are presented, in particular the SDZ-La5 for the Fregat-SBU upper stage. Design and functional solutions are defined for the SDZ-La5 application as a part of RBF2U-SBU which differs in its geometry and mass-inertia properties from the Fregat upper stage (RBF). Information is presented on the transformation system development for the scenario without separation of the upper frame of the SDZ construction. Ascent Units (AU) of some advanced programs using the SDZ-La2 as a part of the Fregat upper stage and the SDZ-La5 for the Fregat-SBU upper stage are presented taking into account the single concept application. This article is a continuation of the article “The Concept of Design & Development of the Spacecraft Double Launch System as a Part of the Upper Stages of the Fregat Family” (Kolmykov et al., 2019).

摘要—提出了实施单一概念以开发双发射系统（SDZ）的结果，尤其是用于Fregat-SBU上级的SDZ-La5。为SDZ-La5应用程序定义了设计和功能解决方案，作为RBF2U-SBU的一部分，其几何形状和质量惯性特性与Fregat上级（RBF）不同。在不分离SDZ结构上部框架的情况下，提供了有关该场景的转换系统开发的信息。考虑到单个概念的应用，介绍了使用SDZ-La2作为Fregat上级部分的一部分和SDZ-La5作为Fregat-SBU上级部分的一些高级程序的上升单元（AU）。本文是“设计与设计的概念