Power & Performance
Those special qualities that separate one sea-going vessel design from another. Performance specifications presented assume optimal operating conditions for HMS Upholder (P37).
2 x Diesel-electric engines delivering 800bhp; 2 x Paxman Ricardo diesel generators with electric motors delivering 760 horsepower; 2 x shafts.
Propulsion
11.3 kts
12.9 mph
Surface Speed
10.0 kts
11.5 mph
Submerged Speed
4,706 nm
5,415 miles | 8,715 km
Range