| astronaut. | SABRE: Synergetic Air-Breathing Rocket Engine | синергетический воздушно-реактивный ракетный двигатель (SABRE's highly efficient air-breathing design, which eliminates the need to carry on-board oxidizer during air-breathing flight segments, will enable aircraft-like horizontal take-off and landing operations, reducing cost, infrastructure and mission timelines, while increasing responsiveness and system reusability. AllaR) |