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Thanks for this. I have an exhaust manifold removal in the immediate future. Where the exhaust connects, I can already see that there is a bolt that is missing its head (upper right). The bolt head is gone but the washer is still there (surprised there isn't any exhaust leak). I know that...

Yes, but there is more going on than just insulation efficiency when running through a stand alone inverter. Most inverters have a "standby" usage. No matter how much insulation, and how much that insulation saves amps, when the fridge motor shuts down there is still a draw as long as the...

That's the gadget, but for an iphone, which I don't have. If one looks at the "Time" section of the web page, it records the roll (of something) with the roll periods and magnitude. The roll that it shows stays the same magnitude for awhile but the period gets shorter. That would be a very...

For anyone still following and interested in numbers rather than feelings, I did find an inexpensive recording inclinometer. $50 instead of a free app. It might give too many numbers. It is magnetic, so has to be mounted properly. It seems to be Android and PC. Biggest complaint seems to be...

I originally had +350 feet of chain on my similarly sized boat. I did an assessment of when and where I would likely need that amount of chain, i.e., instances where there was no other option but anchor in 75' depth in a 4 knot running tide, etc. Not likely. Weigh that against instances where...

And there are also one's that have a verbal message plus the loud beep. I'm not sure how programmable the individual verbal messages are. One of the things I've noticed about mine onboard and at home is that, because of their proximity, I have a hard time identifying which detector is the...

The largest roll I saw was 5.1 degrees (not enough to knock over a pop can), but I was preparing myself for worse while watching the approaching wakes. It was the setup for throwing stuff on the floor. But the ART stifled it fairly effectively. It would start out as the old...

Rudder angle indicators are inexpensive. Shop around and you will likely find one that matches your gauges. If your Wagner is a common 0-190 ohm meter, the new gauge might use the original sender (or keep the old for a spare). Some of the gauges have the needle aft of the "boat image" and...

Just got back (I was towed, but that's another story) from a 3-day shakedown cruise to make sure all systems were go before heading to Canada. Obviously not. But I did get a chance to monitor my "pillow tank" ART. I anchored in Rich Passage where the Washington State Ferry and the Kitsap...

Now that we have answered the OP's original question; Stabilizers: A Must for Passage-Making? ("No" for some, "Yes" for others, "Depends" for the rest) I looked at the Monk 58 and the posts here about that boat's "tenderness." I also agree that it isn't stability, it's comfort that is being...

You forgot to include the exaggerated dangers of an ART. Somebody who had skin in the game was the owner of the Swan Song, the 58' Monk with an ART. Here is an old post where the owner talked about real-world passage making with an ART. We had looked into these units (gyroscopic...

That's the kind of perspective I tend to discount. A Cadillac SUV has to be best because 1) it is a Cadillac, 2) it is expensive and 3) they have good TV commercials. Same with Louis Viutton luggage. Has to be the best. But are these purchased because of skin in the game or clueless with a...

I wanted to examine my damper plate after getting a little saltwater in the flywheel casing (another thread). My 80 hp Lehman has front motor mounts on the block and rear mounts via cast iron "swan neck" arms on the Velvet Drive transmission (picture below). I'm not sure if this setup is used...

Barking Sands, I haven't calculated mine by measuring the tank size, but I did by measuring the fill time. I used a hose to fill a 5 gallon bucket, timed it, then filled the tank, timing it. My calculation came to 60 gallons. I then made a dip stick based on 60 gallons and divided it into 20...

I have a log, but an even faster answer to the "when was that part changed" question is to write on it with a Sharpie or (sometimes better) a paint pen. When the transmission heat exchanger has "7/94" written on it, it's time for a change, not time to look through an old log book (if there is one).

If you want to maximize the effect from an ART you can increase its size or place higher up. To maximize benefit, larger and higher has its limitations and realize that one can't get gyro results from an ART. The only article I read where stability with an ART was a safety issue was a fishing...

Good time to run a little rare earth magnet around the area. It can pick up little shards from crevices. Have you found any piece(s)?

Got it. Your citation to an ancient book of riddles explains it. One has to have faith that ARTs won't work because they are foreign and not traditional. Sort of like multihulls. Used by others, but not us. Can't work for power vessels despite the science. They turn turtle and everyone...

OSD, Here are the details. The hack is for a 80 hp Lehman, so check the water pump connections for measurements. https://www.trawlerforum.com/forums/s6/my-lehman-coolant-hose-hack-60596.html

I've seen the articles on the Swan Song, although not the ones on the difficulty in tuning the tank. The articles I've seen is that the tank was designed prior to installation and no additional tuning was done. I haven't seen any "tweaks were attempted" articles. The owner (and now his son, I...

It would be interesting to get a number. Kind of odd that nobody seems concerned enough to publish numbers. The systems that I've seen had a stout mast and two outriggers, easily 200# of aluminum. Then electric winches (four in one setup) at 50# each? 20 feet of chain each side. Tackle and...

Sure, definitely possible if the tank was huge. Maybe 25 to 30% of the gross weight instead of 2%? I'm not sure that you would notice any extended roll period otherwise. If two people sitting on the same side of a flying bridge feels dangerous (three people for your boat), then the boat...

Funny, I looked at that. The viscosity of mercury is 1.6 times that of water, which would probably slow the weight transfer just right! It is also 13.5 times heavier. Sounds perfect. The tank would be about 6" x 6" for my boat, so a big space savings! I would need about 270 pounds at...

I think that's probably right, although I haven't seen much about using them in tandem. Rolling chocks/bilge keels would slow the roll and then the water wave in the tank would definitely be too fast, requiring further complexity in the tank baffle system. I still haven't seen an explanation...

I'm not sure that you will get your money's worth out of a 60A DC2DC. My 100A Balmer puts out a realistic 55A when controlled by the external regulator with semi-conservative settings. That 55A going to LA will then "spill over" to the lithium through the DC2DC. But I think that the LA will...