The "Universal Propeller": Built by Paragon Engineers, Inc., Baltimore, MD.
| Author: | Bacon, David L. |
|---|---|
| Year: | 1922 |
| Document Type: | N/A |
| Series: | NACA Technical Memorandums |
| Report Number: | NACA-TM-70 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc53971/ |