Beneteau Oceanis 381

[Guest]

Nice to see there's been plenty of discussion regards the 381, albeit tending to drift of the initial question asked-can it safely do a long ocean passage?Perhaps some basic statistics may help to broaden the dicussion.
The LOA of the 381 is 11.50m, LWL 10.00m, beam 3.93m,draught 1.62m. The displacement is 7900kg and ballast 3000kg. The displacement/waterline length ratio is 220, sail area/displacement ratio of 17.5 and a ballast ratio of 38%.
Below the waterline the hull has a much more seakindly look to it than in previous
Oceanis boats (including the sad case of the 390 which inverted with loss of life and was the subject of the subsequent M.A.I.B. report) The 381 is different from her previous sisters-but is she still up to the job of an ocean passage?A final point for consideration is the fact that the 390 had an angle of vanishing stability of 109.37 degrees whereas the 381 has an A.V.S of 135 degrees. Does this say anything?

 

[david_e]

'Fraid I don't know the answer to your question about angle of vanishing stability but hopefully someone will. The statistics and ratios are interesting but without comparison against another similar length cruising boat they do not mean a great lot. Would you happen to have the same stats for a boat which is an acknowledged passage maker and also the price and RCD rating of each respective boat? We can then start to consider and discuss the variables.

 

[ParaHandy]

Your data for 381 is not correct. Displacement is 6,800kgs. You need to re- calculate displacement ratios. Are the AVS figures supplied by Beneteau?