Bad Kitty
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Posts posted by Bad Kitty
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24 minutes ago, CarpeDiem said:
That's exactly what you do.
The HH44 has a 10kW engine which is just a stock standard 3 cylinder kuboto red mechanical diesel that we all know. It has a 10 kW generator attached to the output shaft and also has the typical shaft drive propellor that most boats have.
So the 10kW engine can be delivering 6kW to the drive shaft propelling the boat while driving the generator at 4kW charging your battery bank.
When you stop the engine the battery powers the generator spinning the drive shaft.
When you put the sails up the propellor spins the generator charging the batteries.
This is even more efficient than hybrid cars which convert mechanical to electrical and back to mechanical. And hybrid cars have been charging batteries while you drive since forever.
OK, so that is a true hybrid system. To motor continuously you are running a main engine, whole also charging batteries. So isn't that just a more expensive, heavier ICE drivetrain, with a whole lot more embedded carbon in it's manufacture, & battery disposal implications at some time, for the ability to motor quietly for a short distance?
I'm still not seeing the real world planet saving impact?
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6 hours ago, CarpeDiem said:
But you have a generator for when you need it. A purpose spec'd marine generator with a matched alternator is many times more efficient than a diesel sail drive engine. Our engines waste so much energy.
I agree you can't get away from having a generator when you also have tight schedules and can't afford to Bob around for 48hrs waiting for favorable winds.
You can't run the generator to charge the batteries & motor continuously. If you're happy drifting around waiting for batteries to charge while a tropical depression is headed your way then all good, me, I'm not.
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21 hours ago, CarpeDiem said:
I love the OceanVolt range. I really regret repowering to another diesel. A definite case of not knowing what I know now. 3 years ago I just thought I knew that diesel was the only option and there was no way electric could ever be an option... boy have I learned a lot.
Where is Romanza now? Was on the poles at Westhaven but I have not seen her for a long time...
A beautiful boat.
I tried really hard to make it work for me, but ended up going 2 x 40hp diesel again, and don't regret it for a minute. The all-electric solution is, imho, not mature enough or well proven enough. There are numerous boats that have gone that way, and then ripped it all out & refitted ICE drivetrains.
Ultimately, every now & then you may need to motor for 48 hours, and nothing all electric will do it. Not in small craft size.
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Ballystick if you want to take a look at our set up you're welcome. I'm broken currently after shoulder surgery, so boat is sitting in the marina doing nothing!
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Bad Kitty has had a 2 element induction hob from day 1. Had AGM batteries, then Li ion, and did change the induction top to an off grid model that runs a max 2KW draw. If you crank one element up to high it drops the other one back to stay under the 2K. But even the original was fine. They are so grunty it's hard to imagine having 2 elements running on high.
They suck some power to get up to temp, but then consumption drops back quickly.
I was keen not to have gas inside the boat, then during construction was thinking I was being paranoid, and then a sailing cat at Opua has a gas explosion than peeled half a deck off & blew a guy into the water, and I let paranoia run free.
12v system & inverter, you don't need 48v as earlier suggested.
No regrets, I'd do it exactly the same again, but if you had a boat set up with low draw, low charging, and small battery capacity it may take some work/spend to get there?
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2 hours ago, K4309 said:
Never seen that site before, it's excellent.
Thanks K1234
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Mmm, not sure how you're set up, mine opens with 6 models.
Then you can see how they compare. If they are all very similar, that's the weather you'll get.
If they are wildly different, it get's a bit more interesting!
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On 17/12/2023 at 9:59 AM, Black Panther said:
We're in Matamata getting ready for our visit to Hobbiton. I have camo gear and a crossbow, am I missing anything?
Cheese, use as a lure. Some consider it unsporting, but as I hunt for food not trophies, I don't feel those considerations apply.
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Get something turned up to fill the gap for now, it doesn't need space shuttle accuracy.
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5 gone!
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What a waste of time. MPI spends millions on trying to wipe out Undaria every year, from the Chathams to Fiordland, flying divers around with scissors to manually cut it off rocks FFS.
It's had 30 years off massive effort, at uncountable cost in the Chathams, and it's still there.
Divers living aboard in Fiordland, flying in & out since I think since around 2010? Someone jump in if you have better knowledge of this effort?
And here we are, Undaria still here, and still spreading.
But we think this time around, with Caulerpa it's going to be different? Hmmm, not convinced.
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4 hours ago, waikiore said:
Yes I like the Bay shallower and warmer water with many options
I imagine the Bay will be crazy busy, more so than usual with the question mark over Barrier. We usually head further North, and swing into the Bay when we head South, later in Jan once a big chunk of the crowd leaves.
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32 minutes ago, slanty said:
Hi folks - I'm a GBI virgin and was hoping to take my lotus 9.2 out there this xmas. Does only having fitzroy available for anchoring limit the experience in your opinion? Will there be enough space there to swing safely? Interested in your thoughts.
I suspect Fitzroy will be pretty manic, unless a lot of people stay away. The big issue will be when a NE system comes thru, and limited safe anchoring in a storm becomes very desirable real estate. There's other places to go & anchor, but that red area on the CAN wipes a lot of them out.
Cavalli's is looking pretty good again!
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1 hour ago, Psyche said:
To me SailGP was a no brainer, it has everything you could ask for in terms of a sporting spectacle for "the city of sails". There are plenty of places to view the course from, it wouldn't take much in the way of creativity to make it happen.
And there's the issue, "creativity" Or effort, or just giving a sh*t.
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1 hour ago, ex Elly said:
Sailing: SailGP pulls out of Auckland event
"However, the unavailability of Wynyard Point land as a spectator facility proved to be a barrier to holding the event in Auckland," Hill said.
Moving to Christchuch instead.
https://www.newshub.co.nz/home/sport/2023/11/sailgp-pulls-out-of-auckland-event.html
Hard to verbalise how disappointing that is. NZ's biggest City by far, dozens of Council & Event staff, the City of Sails, and we can't sort out a spectator area for this.
Oh well, back to ChCh it is.
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Not a pretty sight at Waiake Beach this morning!
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On 20/10/2023 at 9:18 AM, Bad Kitty said:
If the record is your only focus for the Coastal, & you're worried about missing out this year, I suggest some study on how to understand a forecast!
Well that post didn't age well! Clockwork, new record for a 40' leaner I think? Maybe I'll do some more weather map study! In my defense, us multi sailors rarely set records with the wind ahead of the beam.
Condolences to the family & crew of the casualty, tough times. The thoughts of the sailing community are with you. 💔
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If the record is your only focus for the Coastal, & you're worried about missing out this year, I suggest some study on how to understand a forecast!
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On 13/10/2023 at 8:38 AM, Steve said:
I think we need to do a bit more maths. Lets say that a tenth of Auckland's sewage is being spilt. I know its way less.
So lets allow 4 flushes a day per person @ about 10 litres per flush. Remember its only a couple of hundred mils per pee mixed with that 10 litres, but lets disregard that and call all 40 litres raw sewage. Roughly 1.6 million people live here so 160k x 40 = 6.4 million litres per day. That's 74 litres per second not 250.
If we factor in the immediate dilution of that sewage with 40 litres of water you might be looking tops 20% of that.
Say 15 litres per second of actual poos and wees. I get 27000 tons not 450000 tons over 3 weeks.
So its probably somewhere in the middle. Not trying to say anything at all.
Just playing with sh*t.
Either number is unacceptable, it's 2023, not 1823.
NZ's infrastructure building & maintenance is pretty 3rd world.
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3 hours ago, Leftred said:
I'm pretty left leaning in general (sorry) but the idea that the tiny pin prick of emissions from heritage machinery should change their operation because of climate change considerations seems ridiculous to me. Although I've shovelled many tons of coal into 100+ year-old boilers over the years so I'm biased.
Making any heritage steam operation work financially is very very difficult. Most volunteer rail operations are struggling to keep their steam locomotives running, except for a handful of very well run ones like Steam Incorporated out of Wellington. Add the complexity of hull maintenance, survey requirements, compliance costs etc, it must be very very difficult to keep a steam vessel operating, Earnslaw being the only successful one I can think of.
And Real Journeys are looking at changing from coal to green energy power for Earnslaw.
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This;
Industry Std T-Series H.Duty Waste Pump 12V 19Lpm | Smart Marine
We get them from GMS, but I see Smart have them. bigger than some, but they'll probably eat chicken bones, coffee grounds certainly won't bother them.
If you can make it fit, it'll run forever.
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4 hours ago, Lindsay said:
The GH ferry is likely to be cancelled because after decades of moaning the good people of the peninsula have persuaded the government that they “need” a shortcut to the motorway via Penlink. This will make the Gulf Harbour ferry less viable, as AT plan to increase the frequencies of the bus services east of Whangaparaoa.
An equivalent would be if you can imagine Waiheke people agitating for a bridge to the mainland and then complaining that the ferry service gets cancelled…
The Gulf Harbour service is frequently cancelled anyway whenever there are strong northeasterly winds.
The Gulf Harbour ferry is cancelled whenever the weather allows the operator to cancel it without paying the penalty.
If it's cancelled for weather, i.e. a 12 knot NE, then it's an Act of God!
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Skipper screams seconds before rival punctures his boat in crash at the Ocean Race | Stuff.co.nz
I know this guy was on starboard, but does it look like he even tried to avoid that?
Caulerpa now in BOI
in MarineTalk
Posted
Unfortunately you could throw a billion at it & it won't "be gone"