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Search took 0.00 seconds. Search: Posts Made By: a64pilot
Forum: Electrical: Batteries, Generators & Solar 30-10-2019, 08:28
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

I like to use the barkeepers friend with a white piece of scotch brite, the white is the gentle one but holds the barkeepers friend very well, better than a rag or a sponge.
I think the white can be...
Forum: Electrical: Batteries, Generators & Solar 29-10-2019, 18:39
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I have in the past for metal polishing used a leather wheel and a block of jewelers rouge, primarily for gold but also brass and stainless.
My Father was a Dentist and I grew up in his Dental lab, I...
Forum: Electrical: Batteries, Generators & Solar 29-10-2019, 10:29
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

I would scrub it with barkeepers friend, which has an acid and does a very mild passivation. Very good results for not a whole lot of work.
Polishing stainless pretty much takes a big bench grinder...
Forum: Electrical: Batteries, Generators & Solar 29-10-2019, 06:54
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

304 and 316 are the most common though, 304 is also know as 18-8, it’s way far and away the most common, almost all kitchen stainless cutlery etc is 18-8 / 304.
316 is almost always labeled as such,...
Forum: Electrical: Batteries, Generators & Solar 27-11-2018, 14:11
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

In my opinion, losing the panel may have prevented much greater damage. I wouldn’t strengthen the panel.
It’s nice to have a planned failure point, and panels are very strong actually, so your...
Forum: Electrical: Batteries, Generators & Solar 07-03-2017, 09:44
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I used fuses in my combiner box, fuses are smaller and cheaper than breakers.
likely not much use, but I like that I can power down the system by opening the fuse holders, each panel has it's own...
Forum: Electrical: Batteries, Generators & Solar 14-02-2017, 12:25
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

Helicopter ground resonance, this is a harmonic vibration, the frame rate of the camera makes it look odd as you don't see the rotors turning right
https://www.youtube.com/watch?v=0FeXjhUEXlc

...
Forum: Electrical: Batteries, Generators & Solar 14-02-2017, 12:12
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

Flutter gives me the absolute willies, this video scares me every time I see it.
https://www.youtube.com/watch?v=qpJBvQXQC2M

A very good friend of mine, Dr Ralph Kimberlin during certification...
Forum: Electrical: Batteries, Generators & Solar 14-02-2017, 04:57
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I was incorrect about the 205 MPH, reason is the pressure increase is not linear, the correct answer from the Engineer is below.

Using 2.2 lb per kg & 1550 sq.in. per sq. meter, a 245 kg/sqm...
Forum: Electrical: Batteries, Generators & Solar 13-02-2017, 12:05
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I think I got that backwards and the panels will only hold .348 PSI, if so then the panels will hold 205 MPH of wind velocity.
Now surely what gets them though is the shaking or flexing from gusts?...
Forum: Electrical: Batteries, Generators & Solar 13-02-2017, 11:59
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

He wasn't there so help me nug this out.
first 245 KG = 539 lbs
1 sq meter = 1550 sq in
Now if I do the math right 1550 div by 539 = 2.87
So the panels will burst if a load of 2.87 lbs per sq....
Forum: Electrical: Batteries, Generators & Solar 13-02-2017, 11:47
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I don't know the MPH, but sent this to an Aeronautical Engineer who I believe will give us an answer.
I suck at math
Forum: Electrical: Batteries, Generators & Solar 12-02-2017, 10:34
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

I could get them into the cabin I think , but they are big, and not sure where to put them.
I guess it all depends on the size of the storm, the time I have to prepare and whether I have to ride it...
Forum: Electrical: Batteries, Generators & Solar 12-02-2017, 10:06
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I had thought about removal also, I can remove mine in maybe an hours work, I used the MC4 connectors it's it just unplug and unbolt, I would leave the frame.
My issue is once removed, where will I...
Forum: Electrical: Batteries, Generators & Solar 12-02-2017, 09:06
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

Rethink panels blowing out, they are a huge area and at least mine I think I had rather lose the panels as opposed to losing the structure they are attached to.
Mine have taken a 45 kt or so gust...
Forum: Electrical: Batteries, Generators & Solar 06-02-2017, 16:38
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

They are just Canadian Solar and I think Mage regular panels, nothing high speed there. Remember I paid 50c a watt. Boat is wider than we think.
Weight wise, no. It's an IP and they have enormous...
Forum: Electrical: Batteries, Generators & Solar 06-02-2017, 14:26
Replies: 383
Views: 527,709
Posted By a64pilot
Illustrated Guide to Solar Installations on Boats

Sort of a garage for the dinghy, dinghy is slightly larger but not by much.
This is three 250 W panels, I have added a fourth since this photo, it covers the center of the Bimini, it is attached to...
Forum: Electrical: Batteries, Generators & Solar 06-02-2017, 05:53
Replies: 383
Views: 527,709
Posted By a64pilot
Re: Illustrated Guide to Solar Installations on Boats

I have 1KW on my IP 38, no pics yet and no real data on output etc yet either as I'm tied to a dock with shorepower. Should get some pics this weekend.
However there is a budget way to do things, I...
Showing results 1 to 18 of 18

 
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