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Systems Analysis and Concepts Directorate

The Systems Analysis and Concepts Directorate (SACD) is located at the NASA Langley Research Center in Hampton, VA and supports the future of aeronautics, exploration, space operations, and science.

Here at SACD, we solve problems associated with aeronautics, exploration, and science by analyzing advanced aerospace system concepts for NASA decision makers and programs.

SACD Branches

Aeronautics Systems Analysis Branch
ASAB logo- links to "About ASAB" page

ASAB is focused on creating advanced concepts and technologies, in relation to aeronautics, to improve connectivity and save valuable resources.

Space Mission Analysis Branch
SMAB logo- links to "About SMAB" page

SMAB enables well-informed decision-making with integrated analysis and assessments of complex space systems, architectures, and portfolios based on benefit, cost, and risk.

Vehicle Analysis Branch
VAB logo- links to "About VAB" page

VAB focuses its expertise in designing and evaluating revolutionary aircraft, launch vehicles, and spacecraft to enable advances in aeronautics and space exploration.

Featured Projects


Hercules is a concept for a single-stage vehicle capable of descending to and ascending from the lunar surface, transporting both crew and cargo along the way. The vehicle could serve as the transportation system between Gateway and the Moon for future exploration missions.


As NASA plans missions to the Moon and future deep-space destinations, the Agency is developing an advanced in-space platform to be located in orbit around the Moon. Gateway will serve as an outpost for missions to the lunar surface with the Artemis program.

X-57 Maxwell

NASA’s X-57 Maxwell is an all-electric experimental aircraft designed to demonstrate multiple leading-edge technologies. The goal of the X-57 is to demonstrate that an all-electric airplane can be more efficient, quieter and more environmentally friendly than traditional gas-powered airplanes.