Boat in build pics (Squadron 78)

Superb. Looks like you've had better luck than I with recent boat purchases.

I'm ready to go public with our issues which I'm sure you and everyone else on Mole Sud is aware of. For now I'm keeping quiet, but the blue touch paper will be lit shortly if they don't do the right thing.

Hope to catch up with you soon :)
 
I like your thread very much, although, I have to say I to do not like the idea of a thoroughfare, and an open one at that, however aesthetically pleasing to the eye may look, over the top of a food preparation area, I can't stop thinking of toejam falling from above on to the canapés.
 
Magnum said:
Superb. Looks like you've had better luck than I with recent boat purchases.

I'm ready to go public with our issues which I'm sure you and everyone else on Mole Sud is aware of. For now I'm keeping quiet, but the blue touch paper will be lit shortly if they don't do the right thing.

Hope to catch up with you soon :)
Click to expand...

Yup, hope to catch up soon. I can kinda guess where you're at legally. Everyone on Mole Sud is very aware; they can't not be, because they walk past every day. Indeed, pretty much every yacht owner and captain in Antibes, plus visiting boats, is aware, and that pool of people is simply growing in numbers as each week goes by. And of course everyone knows it's a 2008er; it's not as if there is the excuse of 25 years in the sun. Dunno when you last saw it but it's unbelievably bad now. I know what the right answer is (in terms of their legal obligations); it's kinda obvious. But no doubt they're resisting. At least they can now afford to do the right thing cash-flow wise; previously I suspect they would have had cash-conservation issues to fret about. Best of luck with the negotiations
 
epervier said:
I like your thread very much, although, I have to say I to do not like the idea of a thoroughfare, and an open one at that, however aesthetically pleasing to the eye may look, over the top of a food preparation area, I can't stop thinking of toejam falling from above on to the canapés.
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Yup I agree. But (I'm learning) there is much compromise in boat design. The real question is, what would you do? It's kinda multi choice :) and I think the answers are a. have no stairs; b. have no island unit; c. enclose the stairs; d. buy a different boat that has stairs away from galley eg Ferretti 740

d. is a valid answer and I''ve left it in the exam paper, thought technically it's not avaialbe to me as I've already paid the price of a large house by way of deposit on this boat :D
 
Oi Magnum, you've not been around here for a long time, welcome back.
Did you get my pm reply to your request on the Tunisian cruise? It was in September last year, IIRC.
I hope it was of some use, and that you had a nice trip.

Oh, and fwiw, I also had the opportunity to see your boat.
Any resemblance with my thoughts in post #31 of this thread is NOT purely coincidental... :)
 
Garmin Kit

JFM

You mention two 15" touch screens for the fly-bridge, you'll love them. You also mention finny things on the sides which if the interface is NMEA2000 they could probably be displayed on one of the smaller instruments. (mine show the position of the trim tabs) you can mix and match what is on the littl fella's.

On a vessel as mahoosive as yours then surely you will have cameras in the engine rooms, which of course you could flash up on the touch screens, split with all the engine data you could think of!

The Garmin instruments can display a fair bit on the network speed depth wind engine data just about all of what is connected so make some holes for at least two of them.

It's quiet mind boggling the amount of info that you will be getting, oh and with two GPS units you can dual system as you can choose which one feeds which plotter etc..

All the info displayed can also be stuck down to a Monitor of course as there is video out so.

Looks like you'll be running a fair bit of cabling around for the network, but it's thin and easy to couple up.

In getting used to using the Garmin Kit I've found my favourite combination up top is the Mariners Eye chart with data boxes for depth, GPS and water speeds, true wind and Position. On the small display combo; depth (in feet offset) then toggle to trim tabs. The other small display is the autohelm a beauty indeed, big and clear heading "you have the helm" with bottom left button "engage"

Best bit is the where to, choose route press navigate to, engage autopilot! Pop back to the chart option and it's all lined up, You can toggle "home", info and take a peek into the engine room then toggle back to the chart, oh and of course there is the HD radar to overlay. With AIS on the ships show up on the horizon on the Mariner's eye view. You can split the screens with sonar as well.

In the wheelhouse all is the same other than the screen is bigger with a 4000 push button not touch screen, works with a remote though. Wireless autohelm controller so you can wander around and change course with it (not sure what happens if the phone rings though :( not tested it yet.

Three more small displays with speed, trim tabs autohelm and any combination you wish to scroll through, tides and currents easy to use as well on the info page.

The touch screens also can have a mouse but that's a bit of a gimmic, it's easier to just touch the screen especially if you want to pan the chart.

More dual stuff two depth sounders and a paddle wheel log, again choose the source for the instrument. The Two DSC VHF's are also driven by the choice of two GPS units and DSC pops up on the chart plotters.

I'll shut up now and let you download and dribble over the GPS5000 owners manual which of course you can download from the Garmin web site.

I have no association with Garmin but am impressed with their Kit.

Oh and as you are in build, get them to put in some big cooling fans drawing away the heat, these fella's do get pretty warm.

Ian
 
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Massive congratulations on the new purchase jfm, I always knew you'd go for the 78 eventually. :D

Keep the pics coming please, its what we like to see.

Hope the legs getting better.

Cheers

Al.
 
jfm said:
I'll try to get pics of u/sonic af performance. The boat will stay local to me - it will be berthed in Beaulieu, a couple of ports along the coast from Antibes. I lifted the boat a couple of weeks ago and was very unipressed with u/sonic performance - I'll post some pics soon but meantime my recommendation to anyone thinking of spending £2000 on ultrasonicantifouling.com is DON'T!
Click to expand...

Yeah I thought that might be the case

Keep the pics coming on the Sq78. It's fecking huge
 
Magnum said:
Superb. Looks like you've had better luck than I with recent boat purchases.

I'm ready to go public with our issues which I'm sure you and everyone else on Mole Sud is aware of. For now I'm keeping quiet, but the blue touch paper will be lit shortly if they don't do the right thing.

Hope to catch up with you soon :)
Click to expand...

And she looked lovely in these pictures here!

http://sunseekergroup.net/London/pdf/2008_SUNSEEKER_PREDATOR_DB1-802.pdf?210610150313

Please let us know about the issues!

P.
 
iangrant said:
It's quiet mind boggling the amount of info that you will be getting, oh and with two GPS units you can dual system as you can choose which one feeds which plotter etc..
Click to expand...

Thanks Ian. Actually the Garmin concept is identical to the Raymarine STNG that I had on my last boat (which I have to refer to in past tense; I haded it over to new owners last week). All the data zooms around a nmea2000 network and you just choose what you want to see in each window of each display screen

Can you just clarify the two GPSs thing please? Are you saying you can have two gps mushrooms on the same network without confusing the components that need to receive GPS data? Does each GPS mushroom have a unique address/identifier, eg mushroom A and mushroom B? And so does the GPS info on the network contain an identifier ie "this is the lat/long from mushroom A", etc? And are you saying that on a plotter screen you can tell the unit to receive GPS data from a specific mushroom? How do you tell the autopilot computer which mushroom to listen to?

Thanks also for the offer to come and try. If I may, I'll bank the offer till maybe september - I struggle getting around on boats with broken leg and crutches at the moment! I'm a totally useless deckhand!

Glad to hear all is going well with Alice (apart from grumpy yachties!)
 
Yes -

Can you just clarify the two GPSs thing please? Are you saying you can have two gps mushrooms on the same network without confusing the components that need to receive GPS data? Does each GPS mushroom have a unique address/identifier, eg mushroom A and mushroom B? And so does the GPS info on the network contain an identifier ie "this is the lat/long from mushroom A", etc? And are you saying that on a plotter screen you can tell the unit to receive GPS data from a specific mushroom? How do you tell the autopilot computer which mushroom to listen to?

You can select the input on the chartplotter which comes up with a list of "source" choices, all the kit is listed along with it's unit ID, which by the way if you type into the Garmin registration it comes up with the serial number to save ripping the kit apart to find it! Yoy can also Alias the individual kit, so you could call the chartplotter up top Plotter Flybridge etc..

mine is set to auto, it works so I left it but may try different sources on different chart plotters, Pretty sure the 555 feeds the Icom VHF lat and long, and the Garmin VHF is off the MNEA2000.

Thanks also for the offer to come and try. If I may, I'll bank the offer till maybe september - I struggle getting around on boats with broken leg and crutches at the moment! I'm a totally useless deckhand!

No problem with banking the offer, look forward to when you can make it.

Glad to hear all is going well with Alice (apart from grumpy yachties!)[/QUOTE]

Ha, grumpy yachties, plenty of them about!!

Ian
 
iangrant said:
You can select the input on the chartplotter which comes up with a list of "source" choices, all the kit is listed along with it's unit ID, which by the way if you type into the Garmin registration it comes up with the serial number to save ripping the kit apart to find it! Yoy can also Alias the individual kit, so you could call the chartplotter up top Plotter Flybridge etc..
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Thanks Ian. In that case I'll specifiy 2x GPS mushrooms both permanently connected to the network, as backup in case one fails
 
iangrant said:
You can select the input on the chartplotter which comes up with a list of "source" choices....
Click to expand...
Interesting feature indeed.
Can't the system by chance use both mushrooms in parallel, hence getting also a compass functionality?
Furuno makes a GPS compass based on the same principle, and it's very accurate as I'm told (and very expensive too).
But I never understood why a proper software embedded in a chartplotter shouldn't be able to do the same, if only the hardware can handle multiple mushrooms, which from what you're saying Garmin does.
 
Magnum said:
Superb. Looks like you've had better luck than I with recent boat purchases.

I'm ready to go public with our issues which I'm sure you and everyone else on Mole Sud is aware of. For now I'm keeping quiet, but the blue touch paper will be lit shortly if they don't do the right thing.

Hope to catch up with you soon :)
Click to expand...

Sounds like you've had some major probs with the boat. Sorry to hear that but hope you and other half are well
 
Just read (as a saily person) the thread; it's a fascinating mind game.

It would be really exciting to see a time lapse sequence of the fitout, in the same was the the Navy has done one of the new Daring D32 - though I guess that they do it for quality and record purposes.

You must have so much anticipation stored up !
 
MapisM said:
Interesting feature indeed.
Can't the system by chance use both mushrooms in parallel, hence getting also a compass functionality?
Furuno makes a GPS compass based on the same principle, and it's very accurate as I'm told (and very expensive too).
But I never understood why a proper software embedded in a chartplotter shouldn't be able to do the same, if only the hardware can handle multiple mushrooms, which from what you're saying Garmin does.
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I'm pretty certain the Garmin can't handle two mushrooms simultaneously - it's got a "software switch" to allow you to select either one.

I wondered about satellite compasses so did a bit of digging and some simple calcs. As far as I can work out a satellite compass isn't two GPS receivers, it's two antennae and one modified receiver. Once it's got the initial ranges to the two antennae it can use the difference between the two to get the bearing to the satellite (i.e. if it's at 90 degrees to the satellite they'll both be the same distance from it).

That theory's great until you do some basic trig and put in say 45cm on one side 202,000,000cm on the other. You're at a level of accuracy way beyond the best GPS receivers.

In practice it seems to use a combination of constant refinement by clever software algorithms, fixing on several satellites and sometimes by using a third antenna to calculate roll, pitch and yaw. If there's no third antenna I assume it would use gyro and accelerometer inputs as correction inputs. That seems to be enough to get it an initial heading accurately and then it can simply calculate the heading changes very easily by integrating the rate of change of the two ranges (i.e. measuring how much and how quickly the difference between the reading from each antenna changes).

So I guess the short answer is you're right a chart plotter that could handle two inputs simultaneously could act as a sat compass if you could position the two antennae very precisely and if you gave it all the roll, pitch and yaw corrections and if you give it all the software it needed and the procession power to handle it, but then I guess you're at a sat compass. I am very disappointed jfm isn't getting one so we can all find out what they're like :p
 
NMEA Bridging

jfm said:
Thanks Ian. In that case I'll specifiy 2x GPS mushrooms both permanently connected to the network, as backup in case one fails
Click to expand...

I think that the chart plotters set to "auto" will pick up either signal anyway.

I've a "standalone" chartplotter on it's own network (the GPSMAP 555 with it's own chart card and internal antenna) is feeding the ICOM DSC VHF and the output is also fed into the 5000.

The 5000 is set to bridging which shares the NMEA 0813 sentences in NMEA 2000 on the network so if the NMEA 2000 GPS17N mushroom fails then you still have a position and if the network fails you still have the little 555 to fall back on.

I'd guess the bridging is working because the analogue stuff like the trim tabs appear on the other instruments on the Garmin network.

Pretty much does what it says on the tin and a bit more!

Ian
 
grumpy_o_g said:
If there's no third antenna I assume it would use gyro and accelerometer inputs as correction inputs. That seems to be enough to get it an initial heading accurately and then it can simply calculate the heading changes very easily by integrating the rate of change of the two ranges (i.e. measuring how much and how quickly the difference between the reading from each antenna changes).
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Thanks g_o_g, interesting reading.
I was aware that even the base model of Furuno sat compass line (which has just two antennas) uses also some gyro/acceleration sensors, but in my understanding they were only used for pitch/roll/heaving compensation.
...otoh, if it were just a matter of adding a mushroom and some algorythm, they couldn't sell a sat compass for $10k or so, I guess...:)
 
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