by E28 » Sat Sep 10, 2016 7:29 pm
Puma, her 3 RN sisters Jaguar, Leopard, Lynx, + 3 India operated were the Type 41 Anti Aircraft frigates.
Chichester, Lincoln, Llandaff, Salisbury were the Type 61 Aircraft Direction frigates.
All used the rather pedestrian ASR 1, Admiralty Standard Range 1, heavy oil or diesel engines.
8 were installed developing 12,380 bhp coupled to the propeller shafting through hydraulic couplings, oil operated reverse and reduction gear boxes giving a speed of 25 knots. At a push.
The Porpoise and Oberon class submarines used the same diesels, supercharged, with no connection to the shafts, indirect drive, the electric motors driving the 2 shafts.
All were fitted to resilient mounts to help reduce vibration and noise, which was ferocious.
Thats all folks. Sean.