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Post by Deleted on Feb 9, 2023 12:30:00 GMT 12
Heard of a electric 90hp outboard(we have a petrol one) great brilliant,last 18 minutes at 25 knts, heck for $75 I can get from Kawakawa bay to channel island and back at 25knts so wont be rushing to buy one $21k us
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Post by Fogg on Feb 9, 2023 12:56:33 GMT 12
Yeah fair enough. I mostly charge it via the Genset or marina shore power but I think if we didn’t have a Genset I would keep the solar panel in the dinghy for trickle charging as often as possible and then plug into the 12v cigarette charger when doing engine charging at anchor or for longer engine runs on calmer days.
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Post by ComfortZone on Feb 9, 2023 13:36:15 GMT 12
Yeah fair enough. I mostly charge it via the Genset or marina shore power but I think if we didn’t have a Genset I would keep the solar panel in the dinghy for trickle charging as often as possible and then plug into the 12v cigarette charger when doing engine charging at anchor or for longer engine runs on calmer days. If you have a reasonable size inverter it would be better to charge with the 230V charger whilst motoring for a stretch, just wait 30min or so after starting whilst the initial bulk charge has gone into the batteries.
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Post by Fogg on Feb 9, 2023 16:52:16 GMT 12
Really? I’m trying to work out why that would be better because surely you’ll get more losses due to the extra stage in the system?
1. Engine to ship’s battery to 12v charger to outboard battery Or 2. Engine to ships battery to inverter to 220v charger to outboard battery
My experience suggests you should always minimise the number of conversions (unless you believed the 12v charger is catastrophically inefficient)?
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Post by em on Feb 9, 2023 20:05:21 GMT 12
I would love an EV outboard, mainly for the stealth fishing mode. But the price is a complete show stopper for me. Esp when compared to the cost of the classic 2 Hp Yamahama (which I already have). I am getting less comfortable with the 2 stroke oil in the sea thing, but again, the cost to change is a major. With you there on all points . To assuage my guilt I use vegetable based 2T outboard oil . I do several trips a year to Auckland and BOI for racing and it’s almost always a motor down from fungray of about 12 hours …both my motors are still running fine after 2 years of using the stuff .
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Post by ComfortZone on Feb 9, 2023 21:05:17 GMT 12
Really? I’m trying to work out why that would be better because surely you’ll get more losses due to the extra stage in the system? 1. Engine to ship’s battery to 12v charger to outboard battery Or 2. Engine to ships battery to inverter to 220v charger to outboard battery My experience suggests you should always minimise the number of conversions (unless you believed the 12v charger is catastrophically inefficient)? My advice was to use the 230V charger when the engine is running, so the inefficiencies really don't matter. The upsides are you are charging 3.5x faster (3.5A vs 1A input to the outboard battery) without pulling the house battery down.
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Post by em on Feb 10, 2023 6:46:19 GMT 12
Really? I’m trying to work out why that would be better because surely you’ll get more losses due to the extra stage in the system? 1. Engine to ship’s battery to 12v charger to outboard battery Or 2. Engine to ships battery to inverter to 220v charger to outboard battery My experience suggests you should always minimise the number of conversions (unless you believed the 12v charger is catastrophically inefficient)? My advice was to use the 230V charger when the engine is running, so the inefficiencies really don't matter. The upsides are you are charging 3.5x faster (3.5A vs 1A input to the outboard battery) without pulling the house battery down. Yep current is king which is why our house system is 24V before the inverter , 48V is even better but that’s assuming you are running 230V .
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Post by ComfortZone on Feb 10, 2023 10:17:32 GMT 12
Of course if you want the ultimate in environmentally friendly dinghy propulsion, there is always the Armstrong/2 Oarspower option in my formative years that what almost everyone had, apart from a few who chose to torment themselves with Seagull outboards, by the time you started one of those a rower would have reached the destination.
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Post by Fogg on Feb 10, 2023 10:37:24 GMT 12
It’s true that great satisfaction can be derived from rowing a well designed little boat. Enhanced even further on a nice day in a pretty location with no schedule. Or perhaps my background as an oarsman distorts my enjoyment of rowing a nice craft more than usual. Sadly most of today’s tenders are just not designed for rowing any distance. At best you can tolerate a few hundred metres at worst they are virtually unusable especially in a breeze or with any load. They have no ‘send’ (in rowing speak) in other words they virtually stop in between strokes rather than continuing to glide forward. And few of us are prepared to tolerate the inconvenience of a hard dinghy both for stowage and coming alongside your previous gelcoat. You can probably solve the problem with one of these: octenders.co.nz/But you’ll have a new problem of a big hole in your bank account that could have paid for 3-4 electric outboards.
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Post by ComfortZone on Feb 10, 2023 11:40:27 GMT 12
a few years ago Russ from OCT told me you could create about 90% of an OCT dinghy by taking a Jim Young stitch and tape dinghy (they were 2.8m and 3.5m), cutting the gunnel flush with the hull side, fitting bolt rope tracks on the gunnel and chine, and getting side pads made up just like OCT. He said he based the original OCT design on the Young 2.8, then straightened the chine and flattened the transom vee to enhance stability and planing. So happens I have one sitting at home as a long term project, altho just intend to put the Rubbermark moulded fender on the gunnel. Most people stow their inflatables fully inflated so stowage on deck should not really be a problem, with the use of a couple of fenders while handling it. Davits make it even easier. When I was young we used to take 2 hard dinghies away on our 32' launch, one across the boarding platform and the other on the foredeck. In the old days everyone used to find ways to stow the hard dinghies on deck, often with permanent cradles. Designer Rodger Hill tows his dinghy (own design based on a Townson 2.7) behind his Townson 35.
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Post by Fogg on Feb 10, 2023 12:26:49 GMT 12
What does your JY2.8 weigh? Is it GRP?
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Post by ComfortZone on Feb 10, 2023 13:16:55 GMT 12
What does your JY2.8 weigh? Is it GRP? stitch and tape 4mm plywood. Guessing weighs 35-40 kg. Bit bulky but one person can carry it with the centre seat resting on their back. I will scan an article about it and post in a few days I understand Rodger Hill has access to most of Jim's plans, will check next time I talk with him.
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Post by GO30 on Feb 12, 2023 0:36:54 GMT 12
ABSOLUTE MASTERPIECE
That's a sure sign of metal illness.
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Post by GO30 on Feb 12, 2023 0:39:22 GMT 12
We have a shed load of those on the farm.
Ducks, not dingys
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Post by muzled on Feb 12, 2023 10:46:39 GMT 12
ABSOLUTE MASTERPIECE
That's a sure sign of metal illness. Or a sure sign your sarcasm monitor is broken...
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