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To: MeganC

“It’s a massive ship with a deadweight of 116,000 tons and the power went out and then they went full reverse...the equivalent of slamming on the brakes in your car.”

The Titanic has no bearing on this event.

Why would going in full reverse cause it to make a right turn, travel some distance, and bullseye the support structure?

And why not wait until it reached the long expanse to start making maneuvers? It had just about cleared the support structure.


63 posted on 03/27/2024 9:55:10 AM PDT by odawg
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To: odawg

This fellow does a very good analysis of the event and the possible unintentional turn:

https://www.youtube.com/watch?v=R4AuGZIhJ_c

Watch that video and then consider these points from an analysis of the Titanic which was in a similar situation as it tried to avoid an obstacle:

“4. A final engineering choice that slowed the ship’s ability to turn was that when the engines were reversed, the third screw, the one directly behind the rudder, stopped turning (as it was driven by a steam turbine fed by the exhausts of the outboard piston engines).

This further reduced the effectiveness of the rudder.

...

Modern analysts, aided by modern tools and with exhaustive research, have determined that the liner would have cleared the iceberg if the engines had not been reversed while executing the hard turn to port.”

In short, reversing the engines while also trying to maneuver is going to fail in a ship that uses a rudder.

A growing number of modern ships that use azipods for thrust will not have this problem.


76 posted on 03/27/2024 10:13:41 AM PDT by MeganC ("Russians are subhuman" - posted by Kazan 8 March 2024)
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