aardvarkash10

Pretty much it! Confidence build exercise. Jos is fine in big seas and wind, I still get a bit jittery. Calculations are my hail Mary.

Agree. You need to resolve for both, and they interact. I'm with BP. Close enough will do.

Yeah, but it's Friday and I'm 2/3 into a bottle of shiraz

Totally agree K. I reckon the anchor would fail well before a decent 12 or 14mm line would. In terms of accuracy, I'm interested in seeing if I'm in the right order of magnitude. The variables outside the calculation are so, well, variable, that anything to the right of a decimal point would be self-delusion. I'm going to give it a shot with 50m of cheap retail 12mm anchor rode and a bit of chain to see what happens. That rode has a working load around 800kg iirc. More than enough for any weather we might be out in.

I can understand that. Also a transposition error that I've corrected. F is in metric tonnes ( I get that's not a unit of force, so shoot me), A is area in m2 and v is wind speed in m/s

Apropos the discussion about hoving to, drogues and chutes etc, I picked up a cheap sea anchor for a play. I very much doubt that we will ever need it since we are mostly in the gulf. But it's an interesting exercise. The sea anchor in question is a cheap PVC item probably intended for drift fishing. It's a 90cm diameter cone with a 15cm outlet. Now the math. This thread gives me a formula to work out the drag of the anchor. It looks reasonable and I couldn't find a different formula. This page gives several formulas for calculating the force from wind on a ship's h

4-year anniversary of taking ownership today. No regrets. VID_20230206_171257.mp4

Confused in lieu of a sad face... Good thing the yard is reasonably empty at the moment.

Yes, forming a defensible legal opinion to support the conviction (or not) of a person involved (or not) in the wrongful (or not) death of 5 individuals should be a rushed thing. Speed is of the essence. There shouldn't be any need to refer to precedence or consider the wider circumstances as set out in the Sentencing Act. No need to wade back through the volumes of evidence, cross referencing and untangling the various lines of the submissions from prosecution and defence. Really that stuff is just so much toilet paper. As for the endless writing and rewriting of the findings - th

Wind rising through the day to 45 gusting 55 to 60kt this evening (Auckland)

Back to the future

Serious question; how does this happen in a time of precision GPS and boat/course management systems?

Taken a couple of years ago. The Boatshed, Pardey's jetty, Kawau.

Today I replaced the manky mooring lines. Went mental and used 16mm. Thimbles one end, eye splice the other. Very chi-chi. Now I smell like duck sh*t and I have cramp in my fingers.

Like a tanker off the Aussie coast?

The admiral at the helm. Her nickname is Araldite. Motutapu in the background as we head to Matiatia last week.

Obligatory sunset shot through Governor's Pass / Man of War Passage, Gt Barrier

Survey response dataset has been updated, 43 respondants so far.

That last one. Can't recall the last time I watched linear tv.

Race fever

Interesting how the technology of the search part of SAR has moved on with PLBs, EPIRB not to mention far better comms and forecasting.

Clevedon will be under water by the time it's a problem

Beyond reasonable doubt. Which is why the issue of relative culpability will be important.

The jets in those carbs are tiny ( ours is worse, it's the 2.5hp version) so even invisibly small crap can block them. Fresh fuel less than 3 months old helps. TBH, if it hasn't been serviced in a while just drop the whole thing in to Ray Bryant and let them sort it. Then you are good for another year.