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| Field name | Value |
|---|---|
| Collection Reference Number | GLC03959.03 |
| From Archive Folder | Documents Relating to the 1870s |
| Title | John Ericsson to Franklin Hanford discussing torpedo trials and the science that has produced successful results |
| Date | 25 August 1879 |
| Author | Ericsson, John (1803-1889) |
| Recipient | Hanford, Franklin |
| Document Type | Correspondence |
| Content Description | Clerical copy. Reports that he has recommended the Bureau to remove the Ordnance Scow from Sandy Hook because it cannot sustain heavy weather. Discusses the torpedo trials and states they have accomplished what was intended, "ascertaining if the explosive energy of powder gases can be substituted for compressed air in expelling submerged torpedoes. The result is more than successful, it is brilliant!" Explains the scientific and mechanical workings that have produced this result. Addressed to Hanford, Lieutenant Commander, Inspector of Ordnance, Navy Yard, New York. |
| Subjects | Invention Inventor Navy Science and Technology Military History Submarine Maritime |
| People | Ericsson, John (1803-1889) Hanford, Franklin (fl. 1879) |
| Place written | New York, New York |
| Theme | Science, Technology, Invention |
| Sub-collection | The Gilder Lehrman Collection, 1860-1945 |
| Additional Information | Ericsson, a Swedish inventor who moved to England, invented an early locomotive, the hot-air engine, and the torpedo boat. He also engineered ships and submarines and was the designer of the Civil War ship, The Monitor, which was the first modern naval war vessel. |
| Copyright | The Gilder Lehrman Institute of American History |
| Module | Civil War, Reconstruction and the Modern Era: 1860-1945 |