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Comment by Geminidawn on June 13, 2011 at 1:15am

I heard about this. The EU putting proposals to the RCD wanting to enforce into the build some form of an escape hatch for multihulls, should the vessel become inverted. The whole concept dose not seem too seaworthy to me and seriously compromises the structural integrity of the hull. Bureaucracy gone mad if you ask me!

Comment by Capgeraldo on June 13, 2011 at 8:53am

Seen from the structural side:

I think it is possible to strengthen every hole in this way so that this area becomes stronger than it was before without hole.

Comment by kim whitmyre on June 13, 2011 at 3:57pm

No doubt they also take the water pressure off the hatch. . .Making way in any sort of seas, that hatch would be buried occasionally.

Comment by Geminidawn on June 13, 2011 at 5:34pm

In any kind of seas it would have to at least meet the linear model and tolerate 15 tonnes of pressure per square meter. That is a deck hatch, I'd fail it instantly!

Comment by Capgeraldo on June 14, 2011 at 3:36am

 

If the hatch glas breaks, its not a problem to the structure of the hull.
For the hatch: You can find deck hatches which can take more pressure than the ply skin of the ship can take itself.
..of cause every ship can have her wave, no doubt: http://img690.imageshack.us/img690/9857/seeschlaglochimbug.jpg

 

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