Search found 5992 matches

by Jaysen
Sat Jan 06, 2024 6:13 am
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

Not in my area of previous experience. Unlike my hobby of building various electronics projects, I’ve not bothered with underwater communications. That’s not completely true… at one point infrasonic sound waves were used as carriers for encrypted communication signals. But these were easily intercep...
by Jaysen
Sat Jan 06, 2024 6:06 am
Forum: Questions before purchasing the plans and announcements..
Topic: CR 13 build
Replies: 7
Views: 13578

Re: CR 13 build

Jacques should have designed a 1/8” lateral and 1/2” longitudinal clearance (1/4” and 1” respectively). He and anticipated some noise damping in the longitudinal. Just build to the plans and you will be fine. I appear to still be in my youthful stages (50) because I can seem to be under sail without...
by Jaysen
Fri Jan 05, 2024 3:00 pm
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

I'm not sure how a DC 12v battery provides power to a 20v charging system, and this was why I recommended inverting. Maybe you can explain it to me. Most DC-DC systems use boost converters for upward conversion and buck converters for downward voltage change. Both are swapping voltage and amperage....
by Jaysen
Fri Jan 05, 2024 6:42 am
Forum: Questions before purchasing the plans and announcements..
Topic: CR 13 build
Replies: 7
Views: 13578

Re: CR 13 build

I may have looked at the wrong design. If the plans have the mast using stays then that design complication for moving to deck stepped is reduced. The f the mast is free standing moving to stays … lots of work. The temptation is to put a compression post under the deck, and attach a mounting bracket...
by Jaysen
Thu Jan 04, 2024 7:50 am
Forum: Questions before purchasing the plans and announcements..
Topic: CR 13 build
Replies: 7
Views: 13578

Re: CR 13 build

1. If built to spec, the dagger will attempt to pop up when grounded. Note “built to spec” and “attempt”. This means you have to make the dagger trunk with adequate clearance and use light wedge, shock or weight to keep the dagger down. I prefer wedge on my v12. 2. If you want a deck stepped mast yo...
by Jaysen
Thu Jan 04, 2024 6:54 am
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

OQ, it’s less the feed and more the water (irrigation and animal), pest control and monitoring. It’s almost to the point that I’m just going to drop a trailer on the lot and stay there a few nights a week. It’s only a mile up the road from the house but… that dang water pump is a real problem.
by Jaysen
Wed Jan 03, 2024 7:12 pm
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

All power fluctuates between voltages. DC voltage is expressed in nominal meaning the “expected average” between upper and lower acceptable limits. For 12v DC that’s 14.1 - 10.1. For AC it’s the expected generator output voltage at the given frequency. For US systems it’s supposed 110v@60HZ/leg. The...
by Jaysen
Wed Jan 03, 2024 6:43 pm
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

Fallguy, you are speaking out your posterior on that one. You can buy official power supplies for DC. You can regulate DC much easier than square wave or pwm AC. These things aren’t new tech. They just aren’t profitable so no one wants to sell them. And before you start trying to argue with me look ...
by Jaysen
Wed Jan 03, 2024 3:54 pm
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

The Sailpro outboards would provide enough charging for us. Would require running a couple times a week for a couple hours when no wall power is handy. Honda's are almost inaudible at 50% throttle. The local nerd will know. For example, I know that my laptop power supply says it will supply 20a to m...
by Jaysen
Wed Jan 03, 2024 12:10 pm
Forum: Anything else and for sale. . .
Topic: BASIC electrical system info.
Replies: 35
Views: 62319

Re: BASIC electrical system info.

As a guy who’s been plotting to live off grid on sailboats, you’re not getting away from assisted charging. Meaning no one is actually doing 100% no mains/generator. Every single one I research plugs into something at some point. That said here was my boat plan: * everything LED * everything direct ...