Statistics for occurrence #1 of “United States” in chapter 47 of Admiral David D. Porter, The Naval History of the Civil War.:
...irection of the latter port, sometimes under three boilers, sometimes under one only, the engineer's force working night and day patching the worn-out boilers.
This old representative ship of the United States Navy at times made not more than three knots an hour, scarcely enough to stem the current setting along the Brazilian coast.
With all the difficulties attending this pursuit, which Semmes calls Q...
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