Power & Performance
Those special qualities that separate one sea-going vessel design from another. Performance specifications presented assume optimal operating conditions for USS Pennsylvania (ACR-4).
ORIGINAL: 32 x Niclausse boilers feeding 2 x Vertical triple expansion reciprocating engines developing 23,000 horsepower to 2 x shafts. LATER: 8 x Niclausse boilers (modified) with 12 x Babcok & Wolcock boilers.
Propulsion
22.0 kts
25.3 mph
Surface Speed