Hydrofluidic Yaw SAS Analysis Design and Development
Abstract
The objective of this program was to design and develop the integrated sensor/controller/series servoactuator package of a hydrofluidic stability augmentation system which will be subsequently demonstrated during operational suitability tests. The sensor/controller was designed based on the performance of a breadboard model that was flight tested in the OH-58A helicopter. From the flight test program, the system gain was increased and a straight rate loop was added as a result of pilot requests. The final system gain was 0.023 inch of servoactuator per degree per second of rate input. The straight rate loop gain was set at 10% of the system gain. Temperature compensation was incorporated into the various circuits by adding negative feedback that contained a viscous resistor. This technique reduced the gain change versus temperature that was obtained in the past.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1974
- Accession Number
- AD0777804
Entities
People
- Harvey D. Ogren
Organizations
- Honeywell International, Inc.