The massive PC4.2 support plate is plasma arc welded. |
The engine room of USNS Walter S. Diehl (T-AO 193). |
(Engine Placement Size Comparison PC4 vs. 2-cycle)
SIZE AND WEIGHT PERMITS MAXIMUM
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T-AO engine room control panel. |
Spark Gas Turbo Blower O.P. reduces nitrous oxide emissions.
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