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Search took 0.00 seconds. Search: Posts Made By: kefroeschner
Forum: Cooking and Provisioning: Food & Drink 05-06-2020, 10:38
Replies: 423
Views: 46,359
Posted By kefroeschner
Re: Induction vs Gas Cooking

Noelex and Adelie are both right. And there are times when it seems the sun has just gone. Like now. Fourth day of overcast and rain with more to come. In Florida. So, some supplement to PV is...
Forum: Cooking and Provisioning: Food & Drink 05-06-2020, 10:29
Replies: 423
Views: 46,359
Posted By kefroeschner
Re: Induction vs Gas Cooking

But to get back to the OP's question ... Induction, by all means. Yes it takes the same amount of energy to cook a given amount of food, no matter how supplied. But, the real difference is how...
Forum: Cooking and Provisioning: Food & Drink 05-06-2020, 09:19
Replies: 423
Views: 46,359
Posted By kefroeschner
Re: Induction vs Gas Cooking

And I should clarify that the '8 kW' inverters are rated in Chinese watts -- really only good for about 3 kW each, but that is enough to run everything we have.



Yes 12v. If we were doing it...
Forum: Cooking and Provisioning: Food & Drink 05-06-2020, 08:40
Replies: 423
Views: 46,359
Posted By kefroeschner
Re: Induction vs Gas Cooking

We have posted before, but a long time ago. Finally getting more active. Maybe should make a web-site, but have not yet gotten a round 'tuit.'



Yes Expected Insolation should be considered,...
Forum: Cooking and Provisioning: Food & Drink 05-06-2020, 07:37
Replies: 423
Views: 46,359
Posted By kefroeschner
Re: Induction vs Gas Cooking

Orion is all electric -- 570 Ahr Pb-acid bank, 2 8kW inverters, a two hob induction stove, Sharp Carousel convection/ microwave, water heater, etc. Total of 800 watts rated PV panels. We run fine ...
Forum: Construction, Maintenance & Refit 22-05-2015, 11:36
Replies: 11
Views: 22,148
Posted By kefroeschner
Re: Concrete Sealer on Wood?

Thanks for the feedback. Especially Goodoldwoody and Ironman162. Your experience sounds very promising. I have applied H&C Clear Solvent Based Concrete Sealer on the Southern Yellow Pine cap...
Forum: Construction, Maintenance & Refit 20-05-2015, 05:53
Replies: 11
Views: 22,148
Posted By kefroeschner
Re: Concrete Sealer on Wood?

Thanks guys, but ... I was asking for experience, not opinions.
Forum: Construction, Maintenance & Refit 19-05-2015, 07:12
Replies: 11
Views: 22,148
Posted By kefroeschner
Concrete Sealer on Wood?

The word around the yard here is that Concrete Sealers, such as H&C, are very good at protecting Bare Aluminum spars. Theses sealers are basically Acrylics and so are pretty much immune to the UV...
Forum: Electrical: Batteries, Generators & Solar 13-12-2014, 06:58
Replies: 27
Views: 28,865
Posted By kefroeschner
Re: Induction cook-top and inverter compatibility

Seems so. What I am looking for is which with which.

I am ready to junk both the Senken and the Cobra 2575 inverter, but a clue as to what to try next would be super useful.
Forum: Electrical: Batteries, Generators & Solar 12-12-2014, 20:20
Replies: 27
Views: 28,865
Posted By kefroeschner
Re: Induction cook-top and inverter compatibility

Nimblemotors: Sorry, the 1.2kW inverter output reading was when it was powering a waterheater, not the Senken. When connected to the Senken it shows 50w output. The Senken shows 800w or 300w on...
Forum: Electrical: Batteries, Generators & Solar 12-12-2014, 16:50
Replies: 27
Views: 28,865
Posted By kefroeschner
Re: Induction cook-top and inverter compatibility

Wow -- thanks for the quick replies.

The rated power for the unit is 1.8kW (15amp @120vAC) We normally run it at 800 watts on one 'hob' and 300 on the other, usually only one at a time, but it...
Forum: Electrical: Batteries, Generators & Solar 12-12-2014, 16:02
Replies: 27
Views: 28,865
Posted By kefroeschner
Induction cook-top and inverter compatibility

We have a very nice Senken two 'burner' stove top which works nicely from shore power, but refuses to heat anything when run from our Cobra 2500 watt (continuous, 5000 watt 'surge') inverter. One...
Forum: Navigation 28-10-2013, 21:16
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

Right -- no gps chip (I was thinking of using it only as a time source) I have designed systems with digital angle sensors but none that I am aware of have the accuracy needed. (Could change --...
Forum: Navigation 28-10-2013, 19:44
Replies: 91
Views: 12,492
Posted By kefroeschner
Re: Celestial Navigation

An article in the recent Ocean Navigator reported that the Coast Guard Academy will continue to teach Celestial Navigation, by sextant, etc. whereas the US Naval Academy will not, relying totally on...
Forum: Navigation 28-10-2013, 18:38
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

wsmurdoch: great idea for a sextant timepiece. Should not be too difficult to put such a thing together using existing clock, gps and LCD chips. The technology is all there -- just needs system...
Forum: Navigation 18-10-2013, 10:19
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

wsmurdoch: The first time (the 10x40) I just bandsawed, filed and sanded a jaw-shaped thingy out of black Delrin (acetal) and epoxied it to the monocular (half of a Bushnell Falcon) The pictures...
Forum: Navigation 17-10-2013, 21:29
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

Adelie, I have not looked into these 'S' tables, but have read of some alternate versions of H.O.211 published recently. Reviews were not totally favourable. I like the old fonts in Ageton, they...
Forum: Navigation 17-10-2013, 20:23
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

gjordan: Thanks, I did not realize 211 was more accurate. I like it because it seems close to the actual geometry and math in method. It is a bit tedious, and I find it is woefully easy to make...
Forum: Navigation 17-10-2013, 16:20
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

Astrid showed me hers, so I guess I should reciprocate. (Hers is a British Admirality, solid brass, with a venerable history.)

I have been practicing on land with the sun, moon and Venus. The...
Forum: Navigation 04-10-2013, 20:37
Replies: 29
Views: 3,910
Posted By kefroeschner
Re: Evans Starzinger's article in BoatUS Magazine

On the abusive language and general demeanour -- there is a web forum for professional captains. The general character of the discourse there is crude, juvenile, accusatory, derogatory, ... After a...
Forum: Navigation 25-09-2013, 14:36
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

The parts have been committed to S/V Alchemy.

Also, the field of view is more like ten moon diameters, not six, for either scope.
Forum: Navigation 23-09-2013, 12:27
Replies: 55
Views: 10,664
Posted By kefroeschner
Re: Sextant Use

Just finished tricking out an Astra III and have some left over parts: the original 3.5x telescope, Owner's Manual (original chinese), handle with battery compartment, wire and connectors, spare...
Forum: Classifieds Archive 07-09-2013, 08:26
Replies: 34
Views: 14,544
Posted By kefroeschner
Re: 60 foot sailboat ketch super cheap - $4900

Quite right mlle. hag. That's what happens when you read instead of looking. And, seriously, I agree with you that someone ought to take her on and save her. The transom is not that bad and the...
Forum: Navigation 07-09-2013, 08:16
Replies: 120
Views: 44,072
Posted By kefroeschner
Re: Sextant...

btrayfors is quite right. It is called parallax error and results from the fact that the two lines of sight to the object (from the index and horizon mirrors) are not quite parallel unless the...
Forum: Navigation 06-09-2013, 20:53
Replies: 120
Views: 44,072
Posted By kefroeschner
Re: Sextant...

One small point regarding index error. As I understand things it is not necessary to look at the horizon to do this, you can look at anything at all. A star for instance, or the neighbor's ...,...
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