The report covers the flight test of a three-axis hydrofluidic stability augmentation system for a UH-1-type helicopter. The design goal was to improve the performance of the aircraft, without stabilizer bar, in the speed range of 60 to 120 kn. The system was installed in a UH-1C helicopter. The helicopter's hydraulic power supply was used to power the FSAS controlers and servoactuators. The system improved the performance of the UH-1C helicopter in all three axes by increasing the damping, increasing the phugoid mode period, and producing a constant vehicle rate proportional to cyclic stick input. (Author)
Three-Axis Fluidic Stability Augmentation System
1971
170 pages
Report
No indication
English
Three-axis fluidic/electronic automatic flight control system - flight test report
Tema Archive | 1975
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