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Forum: Marine Electronics 26-04-2020, 04:58
Replies: 10
Views: 1,158
Posted By mrm
Re: ESP8266 Fuel Sender Help

If I remember correctly, ESP8266 ADC input range is 0-1V.
What you want to measure is voltage going to analog gauge. I would follow these steps:
- measure voltage with the multimeter when tank is...
Forum: Construction, Maintenance & Refit 17-02-2020, 13:14
Replies: 40
Views: 4,879
Posted By mrm
Re: mounting hrdwre on foam-cored boats

I think hardware palcement and loads should have been addressed at the design stage and deck structure modified accordingly. If they weren't, whatever you come up with will be a band-aid.
Forum: Flotsam & Sailing Miscellany 16-02-2020, 09:18
Replies: 14,966
Views: 2,383,343
Posted By mrm
Re: The New Joke Thread

You know those songs that stick in your head and keep playing, making you hum..
Well, I saw a pro tip once: walking through a cemetery with a shovel, humming 'one day I'll find you' is never a good...
Forum: Navigation 21-02-2019, 05:14
Replies: 70
Views: 4,988
Posted By mrm
Re: Voice Recognition for Log?

I think the FreeNet Project took over from where you left :)


https://en.wikipedia.org/wiki/Freenet


Back to the topic, voice recognition is a computation-intensive task and is usually done...
Forum: General Sailing Forum 20-02-2019, 07:33
Replies: 1,562
Views: 55,672
Posted By mrm
Re: There is no Planet B

Good one :thumb:
Yet.. Don't Panic does not equal Don't Think. :flowers:
Forum: General Sailing Forum 20-02-2019, 07:20
Replies: 1,562
Views: 55,672
Posted By mrm
Re: There is no Planet B

At the moment our universe/habitat is this single planet we happen to live on and therefore quite finite.

Dreaming about conquering the Universe (who doesn't like to read a good SciFi, eh?) is...
Forum: General Sailing Forum 19-02-2019, 09:56
Replies: 1,562
Views: 55,672
Posted By mrm
Re: There is no Planet B

:thumb: :smile:




Slowed, but the trend hasn't reversed yet. Yes, we can only hope..
Forum: General Sailing Forum 19-02-2019, 09:23
Replies: 1,562
Views: 55,672
Posted By mrm
Re: There is no Planet B

I think you needlessly make it political and I am with hpeer on all counts.
It is really as simple as trying to sustain an infinite growth model in a finite world. Logically impossible, no matter...
Forum: General Sailing Forum 11-02-2019, 05:19
Replies: 58
Views: 6,210
Posted By mrm
Re: Two angry white men seeing who can pee the furthest..

It goes a bit further (pun intended).
Third one does the same and yells 'ouch, there are crabs at the river bend' :)
(but now there are three of them, so is it off-topic?) :redface:
Forum: Electrical: Batteries, Generators & Solar 29-01-2019, 12:23
Replies: 24
Views: 1,832
Posted By mrm
Re: Help locating analog voltmeter

Haven't seen the type you seek (scale not from 0) for a while. Probably you will find one eventually but.. is your time worth it? Good readability (and better accuracy) can be had with a digital...
Forum: Flotsam & Sailing Miscellany 29-01-2019, 01:41
Replies: 14,966
Views: 2,383,343
Posted By mrm
Re: The New Joke Thread

Yes, and even though messing with port of call is frowned upon, they might have considered King Kong as well.. ;-D
Forum: Monohull Sailboats 25-01-2019, 05:38
Replies: 2,068
Views: 490,044
Posted By mrm
Re: Bestevaer 49ST

OK, missed the vapour

So, if my estimate is right, bringing one litre of water to a boil will produce 2.5 moles of byproduct water, which in gaseous phase will be 56 litres (and in an aqueous...
Forum: Monohull Sailboats 24-01-2019, 09:58
Replies: 2,068
Views: 490,044
Posted By mrm
Re: Bestevaer 49ST

Not sure about your result, 200l or 200ml?


Propane: C3H8
molar mass: 3*12+8*1 = 44g/mole
full burn: C3H8 + 5 O2 -> 3 CO2 + 4 H2O


water: H2O
molar mass: 2*1+16 = 18g/mole
Forum: Lithium Power Systems 24-01-2019, 09:23
Replies: 7,758
Views: 1,431,187
Posted By mrm
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

There is one more factor which you omitted.

If the 6000W you mentioned is the _load_, then inverter efficiency should be considered in calculations. Efficiency will be probably somewhere ...
Forum: Health, Safety & Related Gear 05-12-2018, 08:22
Replies: 45
Views: 7,861
Posted By mrm
Re: CO2 cartridges on Airplanes

My experience: inform the airline in advance, as CO2 cartridges are allowed at airline's discretion. If they agree they will also make an adnotation about the fact in your travel records for the...
Forum: Navigation 05-09-2018, 02:24
Replies: 55
Views: 8,127
Posted By mrm
Re: AIS CPA and TCPA for Solo Sailors

Threads often go at a tangent to the question, but still have good advice. For example the mention of being awake/rested enough to interpret situation correctly when alarmed is spot on, so let me add...
Forum: Europe & Mediterranean 21-06-2018, 00:28
Replies: 69
Views: 12,924
Posted By mrm
Re: Scams in Greece

@Hahser,
@Vladis,
Thanks folks, I provided factual info and refrained from commenting, although I support your point of view. In the interest of correctness, the official fee in Kalymnos was 10...
Forum: Deck hardware: Rigging, Sails & Hoisting 19-06-2018, 07:57
Replies: 10
Views: 1,551
Posted By mrm
Re: sliping inmast rolling furling sail

I have only limited experience with in mast furling, but I was always instructed to keep tension on both 'ends' of the furling line. I never experienced line slippage when adhering to these...
Forum: Europe & Mediterranean 19-06-2018, 07:28
Replies: 69
Views: 12,924
Posted By mrm
Re: Scams in Greece

Happened to me last year in Kalymnos. In my case the official fee for an overnight stay was 5 EUR (41 ft boat), paid to the harbour master (with a proper VAT receipt). Before he arrived, two guys...
Forum: Monohull Sailboats 08-06-2018, 01:00
Replies: 2,068
Views: 490,044
Posted By mrm
Re: Bestevaer 49ST

I have a tough time deciding, whether the pictures are work of art, or the work of art is pictured.
Likely both..
Forum: Engines and Propulsion Systems 07-06-2018, 06:08
Replies: 11
Views: 1,141
Posted By mrm
Re: Volvo D 130 oil gone

Simplest check first - see if oil drain hole at the bottom end of the leg is plugged. If left open after service, mystery solved :) If closed, open and see if any oil drains. If there is new oil...
Forum: OpenCPN 05-06-2018, 04:19
Replies: 3,323
Views: 656,108
Posted By mrm
Re: Feature Requests

A possible source of maintained time zone offset data could be java.util.TimeZone. A way to extract this data is shown here: https://pastebin.com/2WR8gLiJ
Don't know if it is legal to use this data...
Forum: Electrical: Batteries, Generators & Solar 21-05-2018, 23:47
Replies: 48
Views: 4,743
Posted By mrm
Re: ABYC E-8.17.4 (L2 conductor label)

One can likely do as they please on their boat, including naming wires any way they like (how about 'boogaboo' and 'bleh'?), however, to the next person working on such install (where L2 was used...
Forum: Electrical: Batteries, Generators & Solar 21-05-2018, 13:05
Replies: 23
Views: 3,514
Posted By mrm
Re: How do I connect to these terminals

Either crimp on pins or ferrules (with integrated strain relief) would be better for this application than stripped wire ends. See pics.
Forum: Electrical: Batteries, Generators & Solar 20-05-2018, 10:40
Replies: 48
Views: 4,743
Posted By mrm
Re: ABYC E-8.17.4 (L2 conductor label)

Concur, that is why in my area names are L1, L2, L3 (Live/Line) and N (Neutral) and PE (Protective Earth). Terms 'ground' and 'grounded' are too easy to mix and therefore not the best choice imo....
Showing results 1 to 25 of 500

 
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