Flight measurements of the vibration experienced by a tandem helicopter in transition, vortex-ring state, landing, approach, and yawed flight
| Author: | Yeates, John E |
|---|---|
| Year: | 1958 |
| Document Type: | N/A |
| Series: | NACA Technical Notes |
| Report Number: | NACA-TN-4409 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc57453/ |