DSK wrote:

OK, tell us what you mean by stopped. Then tell us about the
Titanic's engineering plant and how they would have "stopped" the
central shaft.


Nav wrote:

The engine would be stopped by opening the steam bypass valve. That
might not stop the propellor but that's not the issue here.


Please tell me what ships you've steamed where the engine could be
stopped by "opening a steam bypass valve." Also please tell me where the
steam is bypassed to... are you suggesting dumping main steam directly
into the condenser?


On the Titanic the turbine received LP steam from the main engines. To
stop it separate from the main engines, a valve which I call a "steam
bypass valve" was opened to bypass the turbine and allow the LP steam
back to the condenser.

It is strange that you claimed such expertise on the Titanic machinery
but did not know this.

Cheers