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Search took 0.00 seconds. Search: Posts Made By: Thonord
Forum: Europe & Mediterranean 14-03-2013, 04:17
Replies: 27
Views: 10,136
Posted By Thonord
Re: Scotland, Wales, Ireland

Noted. Visit desirable. Will try to influence skipper.:cheers:
Forum: Europe & Mediterranean 11-03-2013, 08:04
Replies: 27
Views: 10,136
Posted By Thonord
Re: Scotland, Wales, Ireland

Google maps show 3 Knoydarts south of Skye. I assume its Doune Knoydart you're talking about, but it has a road.
Are you sure it has a pub?
Forum: Europe & Mediterranean 10-02-2013, 09:02
Replies: 27
Views: 10,136
Posted By Thonord
Re: Scotland, Wales, Ireland

Apparantly, there are a lot more pontoons in Scotland, since previous visit. (Two would actually represent "a lot")

Is there a listing, or must I browse port - by- port?

Finally revisiting this...
Forum: Marine Electronics 16-01-2013, 05:21
Replies: 22
Views: 6,404
Posted By Thonord
Re: Where to Mount AIS Antenna?

Because, without doing the math, line of sight range (AIS VHF 2 W) is 30 nm?
Forum: Marine Electronics 16-01-2013, 04:45
Replies: 22
Views: 6,404
Posted By Thonord
Re: Where to Mount AIS Antenna?

I question the validity of the 5 mile statement. I assume it originates from the distance to horizon from a 3 feet elevation.
Remember, the other guy's antenna also has elevation (the big guy's a...
Forum: Marine Electronics 15-01-2013, 09:56
Replies: 22
Views: 6,404
Posted By Thonord
Re: Where to Mount AIS Antenna?

Thats what I would do. Who wants unnecessary weight in the mast and distant AIS info anyway. You'll see the vessel a lot earlier on the AIS than you used to see it visually, even with the antenna on...
Forum: Navigation 15-01-2013, 03:44
Replies: 21
Views: 2,665
Posted By Thonord
Re: HELP NEEDED FOR MSc RESEARCH

The introduction of electronic chartplotters in pleasurecraft is the greatest detriment to safety ever.

Not because of digital charts, but because of the marriage of plotters and electronic (now...
Forum: Navigation 14-01-2013, 10:44
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

I didn't know that GPSs has a DR capability. I know the old Transit system had. It had to! Based upon external sensors.

Chart plotters may have DP, but a chart plotter is not a GPS even if it has...
Forum: Navigation 14-01-2013, 10:14
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

I believe Garmins EPE is similar to Circular Error Probable (CEP) i.e. a 50% probability.

It is my philosophy to err on the side of caution. I may have wasted a lot of time during my life, but...
Forum: Navigation 14-01-2013, 08:52
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

Yes, prolly one of the DOPs. Useful, but potentialy treacherous.

Dilution of position (DOP). Its should be noted that they, Horisontal-, Vertical- Geometric-(from LoranC) and PDOP . Don't...
Forum: Navigation 14-01-2013, 02:24
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

I speak no evil about Furuno. On the contrary - I like Furuno.

However your plot is filtered, dampened and you use EGNOS. You have a proper antenna installation, and I guess there are few horizont...
Forum: Navigation 14-01-2013, 01:17
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

The image is very small here. It should be much larger. Maybe it is in my album.
I should also add, the plot is taken under stationary conditions.
Forum: Navigation 14-01-2013, 01:13
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

True, but entering the out of way places - using WGS84 - is more frequent.

Thats why I reccomend VisualGPS. Its simple to use, free and may surprise you.

But has no relevance to this...
Forum: Navigation 13-01-2013, 17:40
Replies: 48
Views: 6,756
Posted By Thonord
Re: Paper vs. Electronic Charts - what's really the difference?

I beg to differ on the first part. Charting errors occur, but are not common.

On the second I agree, but its usually not the GPS' fault.

GPS error happen all the time, you just don't notice...
Forum: Navigation 13-01-2013, 16:29
Replies: 0
Views: 1,058
Posted By Thonord
Duncansby race, Pentland firth, Scotland

Hi,
I will pass through the Pentland firth (Pf) from E to W this summer, after a vacation in Scotland.

So, I Am educating myself on tidal conditions through the Pf and am, in my opinion, at a...
Forum: Flotsam & Sailing Miscellany 25-08-2008, 14:56
Replies: 10
Views: 1,570
Posted By Thonord
It sure looks like an informal Cornish Ensign",...

It sure looks like an informal Cornish Ensign", but I'm told that it has a small Union Jack and the Southern Cross in the Upper left corner.
Either ther is a place in Cornwall named Auckland or...
Forum: Flotsam & Sailing Miscellany 24-08-2008, 13:23
Replies: 10
Views: 1,570
Posted By Thonord
Unfamiliar NZ flag

Hello all. I'm a member of a similar forum in Norway, and we are arguing about a NZ flag spotted on an Aucland based sail boat visiting our Nordic waters.

The flag is black( and please have...
Showing results 1 to 17 of 17

 
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