HR-51 - First published in NASA-STD-8719.29. First used in Software Engineering Handbook Version D.
| SWEHB Rev | HR Rev | Requirement Statement |
|---|---|---|
| D | Baseline | 4.5.1 The crewed space system shall provide the capability for the crew to manually control the flight path and attitude of their spacecraft, with the following exception: during the atmospheric portion of Earth ascent when structural and thermal margins have been determined to negate the benefits of manual control. |
