Some effects of valve friction and shock stick friction on control quality in a helicopter with hydraulic-power control systems
| Author: | Brown, B Porter |
|---|---|
| Year: | 1957 |
| Document Type: | N/A |
| Series: | NACA Technical Notes |
| Report Number: | NACA-TN-4004 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc56669/ |