Island Time
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Posts posted by Island Time
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1 hour ago, Vivaldi said:
Does the 810 fit into the older Hydra through hull?
No. The 800's and the 810's use the 51mm thru hull...
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On 18/03/2025 at 7:03 PM, Jon said:
Thoughts please
Simrad V3100 SOTDMA CLASS B AIS W/GPS-500
SKU:000-14380-001Price:$1,539.00 inc. GSTGreat upgrade from Class B for an offshore vessel - means the satellites can see you ALL the time instead of MOST of the time on class B...
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anywhere in NZ? Mana is pretty good - Wellington - $500/m for a 12m....
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Make sure whatever you get is FCC compliant (or IEC). It's illegal in NZ to use an uncertified transmitter. For your info, a NAIS 500 (B&G or Simrad) is $955 + GST, and is compliant.
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Also note that the standard is NOT retrospective, despite what some inspectors are trying to apply for EWOF's.... Its a shambles, and has been for years, with the electrical registration board exonerating themselves and trying to make the inspectors liable for any issues that come up in applying their standards. It's not surprising that the inspectors are cautious. Yes, for any new vessels its going to get difficult....
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From the NZ standards site;
AS/NZS 3004.2:2014
Current Date published: 27/06/14So, no, there are no current standards requiring IEC compliance. The current standard says"Lead-acid storage batteries, alkaline and lithium ion storage batteries shall not be placed in a common cabinet or container or in close vicinity to each other.""2.9.3 Additional requirements for lithium ion batteries The following additional requirements apply:(a) Lithium ion batteries shall be installed in locations that ensure the battery manufacturer’s specified operating temperature limits cannot be exceeded and are appropriate for the IP rating of the battery and its management system.(b) Each lithium ion battery shall be provided with a battery management safety system (BMS) either integrated into a battery pack or as a separate component located adjacent to the battery. The BMS shall continuously monitor the voltage and temperature of each cell in the battery.(c) All charging sources shall be automatically disconnected by the BMS when voltage exceeds the manufacturer’s recommended maximum.(d) All connected load shall be automatically disconnected by the BMS when the voltage falls below the manufacturer’s recommended minimum.(e) The battery shall be automatically disconnected by the BMS from all connected load and all charging sources when temperature exceeds the manufacturer’s specified maximum.(f) The BMS shall provide an audible and visual alarm at the normal vessel operating position before a disconnection event occurs.(g) Lithium ion battery ventilation air flows shall be in accordance with the manufacturer’s requirements. If specific air flow data is not provided the requirements of Clauses 2.9.2.2 or 2.9.2.3 shall be applied. NOTE: Care must be exercised when disabling charging sources to avoid the risk of elevated voltages that may damage the equipment. -
Normally Yachts use the B&G version - V60B. I've put lots of these on customers boats and had no issues.... If the display is too small for AIS and you have a MFD or Triton2 displays, they can do the AIS instead... via NMEA2000...
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What BooBoo said.
The amount of rudder blade forward of the pivot point is what provides rudder balance (ease of turning). Those rudders look like they drop down to probably fwd of the pivot point - it's essential that they lock down properly and cannot move aft in their cases - even a few mm makes a big difference. So the balance on the rudders controls helm load, but as Booboo says, the centre of lateral resistance v the centre of effort of the rig denotes how MUCH rudder is needed to counter any rotational forces. If you need a few deg of rudder to keep the boat sailing straight, then the rig & or sails need adjustment to suit.
Personally I'd not change ANY naval architecture until all other sources were exhausted...
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On 5/03/2025 at 3:03 PM, waikiore said:
I wonder if the launch had Lithium ? Looks as if started in the engine area and this follows other incidents where the BMS failed in NZ and offshore.
I'd be interested to read of any incident with LIFEPO4 batteries being identified as the cause of ANY fire, ashore or afloat, BMS failure or not. LifePo4 batts are VERY hard to make burn (ABYC tried to do it and couldn't) - other Lithium chemistries have no place on a boat IMO.
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Or you could try Rats (member on here) - send him a PM...
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Yep, I've got a good one, just needs lower seals done. Low hours, excellent condition, was used on a duck punt...make an offer.
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Imo this is a leadership failure. All crew should be warned and aware of possibility of a gybe when sailing deep, esp by the lee. No-one should be positioned even close to where they could be hit, regardless of convenience. Crew safety is paramount, and any helmsman, tactician or skipper should be well aware of any time when this is possible.
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Depends on the platform. LINZ NZ do raster and vector charts for NZ for free - but you need a system (like opencpn) that can display them. None of the main Marine Electronics companies support them...
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On 5/11/2024 at 6:45 PM, Bad Kitty said:
Anyone familiar with both C Map & Navionics for Pacific charts? Fiji predominantly, but they're usually bundled.
Time for an update for the chart on the B&G gear, interested in which y'all like better?
We have C Map on the B&G gear, and Navionics on iPads & phones.
It's interesting (TERRIFYING) how much they can vary, and while one may be better for a few Islands, then it's miles out & the other is better.
Thanks, pic for reference! Lagoon at Ongea
Just a note BK, now that Garmin own Navionics, and Navico have bought C-map, all the development work from Navico is now Cmap... There are several levels of charts, the basic one being "Discover", then the advanced one being "Reveal" NZ Reveal charts are $294 + GST, Discover is $146 + GST. There is not yet a Reveal for the pacific, Discover (Pacific Territories) is $294 + GST.
From Navico - reveal
"Cruising, fishing or sailing, C-MAP® REVEAL™ charts offer the very best of C-MAP. With Shaded Relief, including game-changing Reveal Seafloor Imagery, Aerial Photography, Satellite Overlay and Dynamic Raster Chart presentation added to the core C-MAP features found in DISCOVER™ – full-featured Vector Charts, with Custom Depth Shading, Tides & Currents and subscription-free Easy Routing™. It also includes the very best of C-MAP High-Res Bathy, including integrated Genesis® data. Purchase includes a full 12 months of free online updates.
Compatible with Lowrance, Simrad & B&G Chartplotters"
Discover;
Cruising, fishing or sailing, C-MAP® DISCOVER™ offers a choice of coverages and includes all of the core features you need to make the most of your time on the water. DISCOVER has the very best of C-MAP High-Res Bathy, including integrated Genesis® data, along with full-featured Vector Charts, Custom Depth Shading, Tides & Currents and subscription-free Easy Routing™. Purchase includes 12 months of free online updates.
Compatible with Lowrance, Simrad & B&G Chartplotters.,
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The 800 is obsolete, replaced by the 810.
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There are not a heap of Laser 2's around. Should not be too hard to build a new rudder and stock if you have the old ones for measurements??
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Id go now or Tomorrow... Always watch developments, and stop if needed...
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10 hours ago, Pedro said:
H there , just about to do that trip from opua to nelson soon, you mean 2 days from opua to New plymouth? but this is like almost 400 miles ?
thank you.
It's 420 odd nautical miles from North Cape to Nelson. 3 days for most boats, or 2 to NP, and one to Nelson. 24hr days... Opua to Nelson Id go W coast.
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2 hours ago, Jon said:
Haven’t tried it yet myself and the next one is a paid gig so won’t risk it.
From what I’m told it’s the airnz that stops you in Auckland as they are liable to fly you home if your rejected at the other end
Only had them try that with me once. Asked for a supervisor, who read the appointment letter, no problems...
A stamp is possibly not necessary, but anything that makes the letter look more official might help.
You could, of course, check with your airline. Just record who you speak to, and time/date, or even record the call...
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I've always managed with an appointment letter from the vessel, Stamped with the vessels stamp and signed by the owner/skipper, saying you are appointed as crew on SV XYZ, registration details, from date XXXXXX as skipper/mate/deckhand whatever.
Vessel is currently in Fiji waters and expects to depart approximately XXXXXX.
Never been an issue...
Commercial Mariners do this all the time.
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On 25/08/2024 at 1:01 PM, Island Time said:
Well, this is interesting "the builder Perini, has stated Bayesian had positive stability to 73 degrees with the board up and 88 degrees with the board down."
So she would have capsized in a mast on the water incident with everything battened down! That, IMO is not a seaworthy keel yacht...
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Well, this is interesting "the builder Perini, has stated Bayesian had positive stability to 73 degrees with the board up and 88 degrees with the board down."
Lithium Battery Box
in TechTalk
Posted
This is what the CURRENT standard Says;
2.9.3 Additional requirements for lithium ion batteries The following additional requirements apply:
(a) Lithium ion batteries shall be installed in locations that ensure the battery manufacturer’s specified operating temperature limits cannot be exceeded and are appropriate for the IP rating of the battery and its management system.
(b) Each lithium ion battery shall be provided with a battery management safety system (BMS) either integrated into a battery pack or as a separate component located adjacent to the battery. The BMS shall continuously monitor the voltage and temperature of each cell in the battery.
(c) All charging sources shall be automatically disconnected by the BMS when voltage exceeds the manufacturer’s recommended maximum. (d) All connected load shall be automatically disconnected by the BMS when the voltage falls below the manufacturer’s recommended minimum.
(e) The battery shall be automatically disconnected by the BMS from all connected load and all charging sources when temperature exceeds the manufacturer’s specified maximum.
(f) The BMS shall provide an audible and visual alarm at the normal vessel operating position before a disconnection event occurs.
(g) Lithium ion battery ventilation air flows shall be in accordance with the manufacturer’s requirements. If specific air flow data is not provided the requirements of Clauses 2.9.2.2 or 2.9.2.3 shall be applied. NOTE: Care must be exercised when disabling charging sources to avoid the risk of elevated voltages that may damage the equipment.
Nowhere in the standards do I see a fireproof requirement?? I could have missed something....
OH, and a LiFePo4 battery is EXTREMELY unlikely to catch fire! In fact the ABYC tried to make some catch fire and were unable to. The battery itself is safer than lead acid based, wet, AGM, or VRSLA included.