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Forum: Electrical and Electronics & Navigation Today, 01:52 PM
Replies: 4
Views: 52
Posted By twistedtree
Exactly! The 50% rule that everyone lives by is...

Exactly! The 50% rule that everyone lives by is greatly misunderstood. There is NOTHING magic about 50%. Battery life is based on the total number of Ah run through the batteries. NOT the...
Forum: Custom Builds & Refit Projects Today, 01:43 PM
Replies: 598
Views: 36,244
Posted By twistedtree
Yes, thatís what Iím talking about. Itís...

Yes, thatís what Iím talking about. Itís integrated into class A AIS as well, which is probably why Iím calling it a light. Iíve seen the square blue flags as well.
Forum: Power Systems Today, 01:09 PM
Replies: 94
Views: 2,223
Posted By twistedtree
The only issue with a fast idle is that itís...

The only issue with a fast idle is that itís harder on the clutches when you shift gears. 1050 is pretty high. It might be worth checking what your gear mfg suggests. I would think that 800-850...
Forum: Voyagers and other Boaters on the Go! Today, 01:02 PM
Replies: 154
Views: 8,587
Posted By twistedtree
Kevin, we are heading to your old home port. I...

Kevin, we are heading to your old home port. I had forgotten how amazing the cliffs are at the entrance to resurrection bay.
Forum: Custom Builds & Refit Projects Today, 11:05 AM
Replies: 598
Views: 36,244
Posted By twistedtree
Edwin, Do pleasure boats use the Blue Light...

Edwin,

Do pleasure boats use the Blue Light system for passing on the canals? Or is that limited to commercial or larger boats? And are there operator license requirements that are specific to...
Forum: Helmsman/Camano Yesterday, 11:03 PM
Replies: 5
Views: 143
Posted By twistedtree
Your understanding is correct, not the PO's. ...

Your understanding is correct, not the PO's. Divide the no-load wattage by the battery voltage (actual, not the nominal 12V or 24V) and you will get the no-load current.
Forum: Power Systems Yesterday, 09:07 PM
Replies: 94
Views: 2,223
Posted By twistedtree
There's another way it became obsolete -...

There's another way it became obsolete - Electronically injected engines tell you how much fuel they are burning via J1939. No extra devices are required.
Forum: Power Systems Yesterday, 09:00 PM
Replies: 56
Views: 1,130
Posted By twistedtree
Check out the attached document from Caterpillar...

Check out the attached document from Caterpillar on engine room ventilation. It should be required reading for every boat builder. Much of the focus is on stationary generators in buildings, but...
Forum: Power Systems Yesterday, 07:48 PM
Replies: 94
Views: 2,223
Posted By twistedtree
Total speculation, but here goes.... ...

Total speculation, but here goes....


First, very niche product, and probably not more than one guy in a garage. That usually doesn't outlast the individual's interest and attention. It can...
Forum: Taiwanese Makes Yesterday, 05:43 PM
Replies: 6
Views: 174
Posted By twistedtree
10T, or 20,000lbs would be my guess, but it's...

10T, or 20,000lbs would be my guess, but it's only a guess.
Forum: Fuel Check Yesterday, 04:44 PM
Replies: 23
Views: 728
Posted By twistedtree
I'm very interested to follow along. Any chance...

I'm very interested to follow along. Any chance you are writing a blog or Vlog? Or perhaps you could start a thread here on trawler forum to chronicle the build?
Forum: Greenline and other hybrid/electric/solar vessels Yesterday, 03:25 PM
Replies: 7
Views: 2,290
Posted By twistedtree
Time for a bigger boat :-) Just kidding, but...

Time for a bigger boat :-)

Just kidding, but only partly. These are all key additions that become easier/possible as you take steps up in size. A combo washer dryer is a game changer vs...
Forum: Power Systems Yesterday, 03:14 PM
Replies: 56
Views: 1,130
Posted By twistedtree
I think thatís very likely on both counts. The...

I think thatís very likely on both counts. The ducted intake air is to feed cool air to the engines since the ER is so hot. But in doing so it makes the ER hotter. If the ER temp can be brought...
Forum: Fuel Check Yesterday, 01:44 PM
Replies: 23
Views: 728
Posted By twistedtree
Iíd be real interested to hear more about your...

Iíd be real interested to hear more about your boat, the power system, expected performance, and of course actual performance once itís in use.

You say you are about to commission, but are still...
Forum: Electrical and Electronics & Navigation Yesterday, 01:24 PM
Replies: 13
Views: 341
Posted By twistedtree
1300 watts, 4 panels, each with its own Victron...

1300 watts, 4 panels, each with its own Victron MPPT controlling it. Not very good yield, I believe mostly because of shading issues. Havenít had much time to attempt corrections. There just...
Forum: General Discussion Yesterday, 01:20 PM
Replies: 8
Views: 294
Posted By twistedtree
There is a certain ďcritical massĒ that any forum...

There is a certain ďcritical massĒ that any forum needs to reach to be successful. BoatDiesel has that, and itís a shame that Tony and the other guy saw different directions. Time will tell if...
Forum: General Discussion Yesterday, 01:15 PM
Replies: 14
Views: 390
Posted By twistedtree
I think there might actually be two different...

I think there might actually be two different questions here, depending on where you are starting from.

If you have no inverter then you are running everything off DC, and running a generator...
Forum: Power Systems Yesterday, 12:59 PM
Replies: 56
Views: 1,130
Posted By twistedtree
Yes, very important. It really comes down to...

Yes, very important. It really comes down to making sure you donít have excessive intake air flow resistance. If you have intake restrictions, then the engine and exhaust fans will create a...
Forum: Power Systems Yesterday, 10:47 AM
Replies: 56
Views: 1,130
Posted By twistedtree
Here's a bunch of info on the engineering around...

Here's a bunch of info on the engineering around ER cooling, and how I addressed the issue on a past boat.



Adventures of Tanglewood: Engine Room Cooling...
Forum: General Discussion 06-23-2022, 03:17 PM
Replies: 14
Views: 390
Posted By twistedtree
I think adding the inverter and solar is a good...

I think adding the inverter and solar is a good idea, but I would try to keep the generator. Unless you are one of the luck few, you will be hard pressed to fit enough solar, free of shading, to...
Forum: Fuel Check 06-22-2022, 12:00 PM
Replies: 23
Views: 728
Posted By twistedtree
I'm not sure where you got these numbers, but I...

I'm not sure where you got these numbers, but I got about twice that using the kiwiprops calculator.
Forum: General Maintenance 06-21-2022, 06:47 PM
Replies: 14
Views: 274
Posted By twistedtree
Any reason interested parties cant just buy their...

Any reason interested parties cant just buy their own legitimate copy? I think that would be the "legal and moral" thing to do.
Forum: Electrical and Electronics & Navigation 06-21-2022, 01:44 PM
Replies: 21
Views: 991
Posted By twistedtree
I think you touch in an important distinction...

I think you touch in an important distinction which is different information for different purposes. A log can be anything from a simple record of port/anchorage calls, all the way to a detailed...
Forum: General Discussion 06-21-2022, 01:03 PM
Replies: 48
Views: 2,975
Posted By twistedtree
We encountered exactly this selling our house. ...

We encountered exactly this selling our house. Neighbors who had been after us for years to sell to them. Finally decided we were open to selling, and threw out an insane number. I had a contract...
Forum: General Discussion 06-21-2022, 10:28 AM
Replies: 48
Views: 2,975
Posted By twistedtree
Keep in mind that RT sold the boat, and the new...

Keep in mind that RT sold the boat, and the new owner has not. Only time will tell if they made a profitable move, or a dumb-ass move.
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