From multihull to monohull?

[CassidyNZ]

Originally Posted by redneckrob

I don't know of any modern 50' cats where people sleep anywhere but in a spacious cabin with a walk-around king or queen sized bed. Not sure what you meant by this?

“Modern 50ft cats” are way out of my budget and thus way out of my thinking.

[mglonnro]

Originally Posted by KP44

It tells the persuasiveness of good marketing. My vessel has never heeled to 45 degrees in 25 years. A 15 degree heel is excessive.
And the Caribbean "fleet" is charter boats; not cruisers or live-a-boards.

Rather than dis on monohulls, I'd rather hear good things about multihulls. I know one that just did a rhumb line from Tahiti to the Sea of Cortez. He says he only motored 40% of the time, so they were sailing upwind. He said they picked up some counter-currents that helped. Of course, he said it was the roughest passage he's ever made. But they did it.

I just happened to go through our first season data to see how much of our first 244 sailing hours we spent at what degree of heel. Surprisingly little, in fact. The second picture is how many hours we sailed at which true wind angles. The wind numbers don't add to 244 since our wind sensor broke a bit before we ended the season.

(More thoughts via the link in the signature.)

[redneckrob]

Originally Posted by mglonnro

I just happened to go through our first season data to see how much of our first 244 sailing hours we spent at what degree of heel. Surprisingly little, in fact. The second picture is how many hours we sailed at which true wind angles. The wind numbers don't add to 244 since our wind sensor broke a bit before we ended the season.

(More thoughts via the link in the signature.)

That's a remarkably quantitative answer to an age old question, thanks!

[Jim Cate]

Originally Posted by mglonnro

I just happened to go through our first season data to see how much of our first 244 sailing hours we spent at what degree of heel. Surprisingly little, in fact. The second picture is how many hours we sailed at which true wind angles. The wind numbers don't add to 244 since our wind sensor broke a bit before we ended the season.

(More thoughts via the link in the signature.)

Very interesting! What software/hardware generated that data, are the wind angles AW or true, and where were you sailing?

I've never seen such data presented... fascinating, and not out of line with my subjective guesses, so they MUST be correct!!

Jim

[mglonnro]

Originally Posted by Jim Cate

Very interesting! What software/hardware generated that data, are the wind angles AW or true, and where were you sailing?

I've never seen such data presented... fascinating, and not out of line with my subjective guesses, so they MUST be correct!!

Jim

It's a Raspberry PI with canboat + sensehat (for acceleration, attitude) + my own software that got the data into Google's cloud (and there an influx database). Then some more of my code to analyze the data. The visuals I put together manually in powerpoint

True wind angles and sailing in the Baltic Sea.

[CassidyNZ]

Originally Posted by mglonnro

It's a Raspberry PI with canboat + sensehat (for acceleration, attitude) + my own software that got the data into Google's cloud (and there an influx database). Then some more of my code to analyze the data. The visuals I put together manually in powerpoint

True wind angles and sailing in the Baltic Sea.

Geeez!

I have one of those swing thingys that point to a crude protractor. Seems to work OK but not a lot of recorded history

[redneckrob]

Originally Posted by mglonnro

It's a Raspberry PI with canboat + sensehat (for acceleration, attitude) + my own software that got the data into Google's cloud (and there an influx database). Then some more of my code to analyze the data. The visuals I put together manually in powerpoint

True wind angles and sailing in the Baltic Sea.

Very cool....and very impressive!

[mglonnro]

Originally Posted by CassidyNZ

Geeez!

I have one of those swing thingys that point to a crude protractor. Seems to work OK but not a lot of recorded history

My first thought, I would put a camera there to constantly film it and track the values digitally (Yes, just kidding!)

Originally Posted by redneckrob

Very cool....and very impressive!

Thank you!

[Chotu]

Originally Posted by redneckrob

I don't know of any modern 50' cats where people sleep anywhere but in a spacious cabin with a walk-around king or queen sized bed. Not sure what you meant by this?

I think what he means is the fairly low "ceiling" above a berth on the bridgedeck.