Have you read my post's about Bismarck firing methodology in the Tirpitz thread ?
Thorsten Wahl wrote:comment on the 30.1 kn figure
this speed was achieved at about 270 rpm
According to steam consumption figures of Bismarcks machinery, the ship requires about 480 t/h steam to achieve this RPM
rated steam capacity of the boilers was 600 t/h at nominal pressure 65 atm
so there were about twenty percent of steam capacity that nominally were not used, additionally not considering overloading.
-nominal pressure 65 atm <-> proof peak pressure 100 atm.
Also, people seem to imply in these posts that the engines were capable of unlimited power if there were only enough boilers to provide more steam. The implications are that one could just put very small engines in the ship and take up all the space with steam generation and go much faster. This confuses me. I believe Bismarck was designed with more steam power than could be used by the engines.
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