Apologies if my post led you to infer that I was. Quite the opposite, I strongly doubt that he had any idea just how marginal the stability...
@Pascal it's a bit frustrating really, as all the interesting bits, i.e. sailing & wind heeling calcs, are understandably carried out with the...
Thank you, that's fantastic. Is this available as a pdf anywhere?
The stills in that video show this WT door/vertical hatch on the port side of the mast, do you know if there is something similar on stbd? The...
No chance. Looking at it again it may be some type of freeing port, meant to allow any water around that sensitive area to drain overboard. If...
I may be mistaken but the louvred vents on the white structure inside the cockpit look like some type of intake/ventilation box that may lead...
That's not an air intake, as there were no openings in the hull topsides, other than the structural doors port side aft and transom, not even...
All of the E/R ventilation systems I've specified, installed or certified have had manually operated dampers. Remotely operated of course, but...
I'm certainly not disagreeing with you and there's no doubt that keeping all doors closed is best practice. I have no idea what actual standards...
IF it's the case that +/-45° heel would submerge the vents, this location would be a well-documented downflooding point. All stability calcs would...
My understanding is that E/R access was limited to the aft bulkhead/corridor crew-only spaces, likely part of the internal 'garage' accessible via...
With all due respect, stability concerns arising from typical loads experienced during offshore rig scale commercial anchor handling operations...
Minor point: a dragging anchor during extreme conditions will allow the bow to fall off the wind, to what extent depends on the residual...
Ecco ;)
This graph would be representative of a motor vessel.
You'd actually be looking for the heeling moment, which is the wind force acting at some distance (height) depending on rig. You'd then also need...
I'd say 500-550t would be a fair estimate based on similar vessels.
Wind load on mast is 0 @90° heel, as it varies with cosine of heel angle. Combined with an angle of vanishing stability (point at which righting...
I agree that it seems awfully quick. However, it's not unusual for the external saloon doors to be left open at anchor or dock, even with A/C...
This is very likely considered an external space and not included in any stability calcs.
