| YFB-12 photographed off the Cavite Navy Yard, Philippines, during the 1920s or 1930s | |
| History | |
|---|---|
| Name | Engineer |
| Operator | United States Army |
| Builder | Hong Kong & Whampoa Dock Company, Hong Kong |
| Launched | 1907 |
| Completed | 1907 |
| Fate |
|
| Operator | United States Navy |
| Renamed | San Felipe |
| Reclassified | ferry boat (YFB-12) |
| Stricken | 24 July 1942 |
| Honours & awards | |
| Fate | captured by Japanese forces, 6 May 1942 |
| | |
| Operator | Imperial Japanese Army |
| Renamed | Aki Maru |
| Reclassified | transport ship |
| Identification | IJA 2215 |
| Fate | unknown |
| General characteristics | |
| Class & type | tugboat |
| Tonnage | 298.8 gross register tons [2] |
| Length | 111.5 ft (34.0 m) o/a [2] |
| Beam | 21.67 ft (6.61 m) [2] |
| Draught | 9.75 ft (2.97 m) [2] |
| Installed power | 500 Steam horsepower [1] |
| Propulsion | two vertical triple expansion (9"-14"-25"x15") steam engines, twin screws [1] |
| Speed | 10 knots [2] |
San Felipe (YFB-12) (ex-Engineer) was a United States Army steel tugboat that later served as a ferryboat in the U.S. Navy and as an Imperial Japanese Army transport during World War II.
She was completed in 1907 at the Hong Kong shipyard of Hong Kong & Whampoa Dock Company for the benefit of the United States Army as the steel tugboat, Engineer. [1] [3] On 28 December 1917, she was transferred to the United States Navy and assigned to the United States Asiatic Fleet, 16th Naval District [1] [2] [4] but then returned to the U.S. Army in 1919. [1] On 9 October 1922, she was transferred back to the U.S. Navy, 16th Naval District [1] to replace the Callao (YFB-11). [2] On 1 November 1922, [2] she was renamed San Felipe and designated as ferryboat/launch, YFB-12. [1] She worked as a ferry boat between the Cavite and Manila. [5] On 10 December 1941, she was assigned to the Inshore Patrol and survived the bombing of Cavite Naval Yard and on 8 April 1942, she assisted in the evacuation of personnel from the Mariveles Naval Section Base to Corregidor during the Battle of Bataan. [1] On 6 May 1942, she was captured by Japanese forces after the Fall of Corregidor and returned to service as Imperial Japanese Army transport Aki Maru. [1] Her ultimate fate is unknown. [1]
On 24 July 1942, she was struck from the Naval Register. [1] She earned one battle star. [1]