When does a ship "raise its hull"? Is this when it wants to go faster or what?

Question

this may be a simple question, but i have no idea...

thanks for the help!

Answer 1

I couldn't find any term that meets your query. Here's a link to look at. Maybe you can find something you didn't know.

Answer 2

The only time I have heard the term is on a drilling platform with extendable legs. When reaching the desired location, the operators would literally Raise the hull to a position above the water to change the platform from transportation mode to a work mode.  Legs to the ocean bottom then support the hull/platform.

Answer 3

Certainly when a boat starts to plane, that does "raise the hull", but that is not the normal answer.

When the wind blows on a normal boat, it tips over, and the weight of the keel underneath (or the people in the boat) keeps it from tipping right over.

A catamaran is a boat with two hulls, in parallel to each other.  When a catamaran gets wind, itis the width between the two hulls that provides the stability, rather than any keel weight. But if the wind keeps blowing stronger, then one of the hulls will rise out of the water.

Making one of the hulls fly like this is the quickest way of sailing a catamaran.

See: http://www.yachtsandyachting.com/photos/... for a picture

Answer 4

I think you're asking about a boat "planing" ... this is when it rides on top of the water, as opposed to pushing through it ... and yes, this happens as it picks up speed ...