EEE netbook

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ash
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Re: EEE netbook

Post by ash »

aquaplane wrote:I downloaded the up to date version of Open CPN last night, ........

I may uninstall the current stuff and start from fresh with the latest charts too, that's if what I downloaded is what I think it
I don't think that you will have downloaded new charts. UK charts can't be found ( legally ) for free.

Ash
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ash
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Re: EEE netbook

Post by ash »

aquaplane wrote: Thinking about it, I don't know how useful the currents are, the GPS gives COG/heading to steer without all that plotting tidal vectors for each hour I've been doing on paper charts.
You had better not let Lady S hear you saying that!

If you applied your technique when crossing the English Channel, then you would extend your journey a fair bit because you would be heading for your destination and ignoring the fact that the tide was going to change direction before you got there. ( Unless of course, you are in a Mobo at 30 knts, when you could probably just follow the GPS )

Ash

PS - You must tell me if I have just fallen for a TOP style Troll Post
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ash
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Re: EEE netbook

Post by ash »

marisca wrote:If wiggly tide lines (and tables) is what you want, Belfield gives a wheen more, the arrows (e.g. orange yin at MoK) gives tidal flows for each hour (values by hitting with cursor) and the charts are the full set of familiar Admiralty ones.
I take it that you are using the Chartplotter software.

How useful is the Tide Plotter at £10.99 for a year.

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Mark
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Re: EEE netbook

Post by Mark »

ash wrote:If you applied your technique when crossing the English Channel, then you would extend your journey a fair bit because you would be heading for your destination and ignoring the fact that the tide was going to change direction before you got there.
Although the "fair bit" has never seemed as important to me as it seems to others.

Assume a 65 mile journey.
Assume it takes 12 hours.
Assume a constant average of 1.5 knots of tide over the whole journey. (At the change zero, maybe a smidge over 3knots at the peak.)

If my trig is right the boat sails 67.45 miles instead of 65.

There's a case to be made that that's important racing but of less concern when cruising.

Personally, I'm a member of the 'Guestimate the total bias' camp, and obviously given the duration sailed is often 12-16 hours steering the course of the destination all the way until something was identified on land wouldn't often be far off.

Signed,

Mark the Heretic.
Last edited by Mark on Mon Feb 04, 2013 4:50 pm, edited 2 times in total.
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aquaplane
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Re: EEE netbook

Post by aquaplane »

I will probably be proved wrong but in Scotland the tide is either on the nose or preferably up your chuff, this cross tide malarky is predominantly a cross channel thing. If you are going across the flow it wouldn't be for the flood and the ebb.
I just realised that Campbeltown to Bangor is cross tide.

The Belfield thing looks good but for what I'm doing I prefer the price of Open CPN ;)

Trol?? Moi? As if I would ever do such a thing.
Seminole.
Cheers Bob.
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marisca
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Re: EEE netbook

Post by marisca »

ash wrote:
marisca wrote:If wiggly tide lines (and tables) is what you want, Belfield gives a wheen more, the arrows (e.g. orange yin at MoK) gives tidal flows for each hour (values by hitting with cursor) and the charts are the full set of familiar Admiralty ones.
I take it that you are using the Chartplotter software.

How useful is the Tide Plotter at £10.99 for a year.

Ash
The Chartplotter software comes with tide tables and graphs - I have no idea if the Tide Plotter is the same stuff without the charts but if it is it is pretty comprehensive.
OpenCPN is certainly cheaper but doesn't do the edges as well as Admiralty charts, at least not with the worldwide charts I might have downloaded (and immediately deleted when I found out about the legality, me lud :wink:).
The tidal flow arrows are useful and the timing matches that of Claymore's Definitives, however just like the tidal atlas, the actual rates never seems to match the predicted.
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Re: EEE netbook

Post by BlowingOldBoots »

Whats an EEE Netbook?
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wully
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Re: EEE netbook

Post by wully »

BlowingOldBoots wrote:Whats an EEE Netbook?
An iPad for skinflints?
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Re: EEE netbook

Post by Telo »

BlowingOldBoots wrote:Whats an EEE Netbook?
Something to do with electrical standards?
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