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BNG

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Posts posted by BNG

  1. damn the bastards responsible for this should be locked up and the key thrown away.  But sadly we know that even if our (allegded) law enforcement officers do anything at all about it the offenders will get a stern talking to and walk away scot free.  Damn launchies

     

    Not disputing its a horror story but...

     

    Article said it was a an alloy boat with a motor 'screaming' so most likely a tinnie trailer boat and light enough to lift over the yacht on impact. Doesn't sound like a launch to me but hey lets not the facts get in the way of a good launch bashing cos all launchies no nothing about seamanship have never trimmed a main and are generally f**kwits....

     

    A launch would have gone straight through it.

     

    So it happened at 8:15 pm when its very marginal for light and they were displaying a stern light only? No masthead 360 degree jobbie like the rules require? Hit on the beam but could have been angled 5 degrees to port obscuring the stern light... they were hit starboard side.

     

    How many threads on here debating masthead lights? How many suggestions that an LED light in the cockpit is ok? Plenty.

     

    They were arses for not stopping and speeding in marginal light but it sounds like the situation wasnt helped by non-compliant lighting at anchor.

  2. Jetski registration came about because they are essentially unidentifiable and there are now lots of the little suckers. We all have sail numbers or names on the side. 

     

    I learnt not to swim anywhere after big rain in the 70's, taught by my father who grew up in AKL in the 30's and 40's just like any sensible parent would teach them.

     

    I'd argue that the water is cleaner now but the testing is far more accurate and localised so we have a more accurate picture.

     

    Not disputing that it could be better but common sense still applies...big rain = runoff.

     

    As for wanting to take a dump in a bay with no holding tank....whats the name of your boat? So I can stay well away. Those days are gone and we are better off for it.

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  3. 16 degree water temperature..... browns became whites Island and there was the other one out the back of Rangitoto he couldnt remember the name of.

     

    Is that a halyard or a fore-stay?

  4. Stop guessing and do the rough calculation - 

     

    Swept volume of engine -  lets say 2L x engine revs at cruise (say 2000rpm) - 2 x 2000L = 4000L/Min or 4 cu/m/min

     

    This assumes 100% volumetric efficiency which isn't possible but will get you close enough.

     

    I was recently on a Fjiordland based cray boat, you couldn't open the engine room door at cruise rpm due to the vacuum....and if you did it was about 50deg C inside through lack of ventilation.

     

    And then the muppets expected the intercoooler to cool the air to get anywhere near efficiency... where a bit of ventilation would have helped on all counts.

  5. Been in touch with both Shaw Diesels here and Gardner in England.

    No issues with supply of parts or servicing from their view.

     

     

     

    Yes there is no issue with availability other than the pricing.... should you ever need to. Which could be a very scary expedition.

     

    But given its a Garner you probably wont need to...

  6. The Fords are a long heavy casting (particularly the six) and many problems originate with operator error - primarily not warming them up properly to allow the thermostat to open and circulate warm water to the rear of the block before fanging it down the harbour.

     

    The expansion along the length of the block is way different front to rear as they warm up and its this that can cause split manifolds (usually between cyl3/4) and head gasket issues etc.

     

    Treat them nice and they will treat you nicely back. Engine oil and filter every 200 hours, injector pump oil every 50 hours.

  7. Is this style of blower rated for continuous operation and how noisy are they.

    If I am blowing fresh air into the compartment to feed the engine etc do I also need to extract as well. 

     

     

    Just like your sails - Flow is Go Bro.

     

    Yes - at the minimum needs to be well vented. If the ventilation ok it shouldnt need extraction as well as blower.

  8. As for all the Launchie bashing don't take it personally. I think it's what we all agreed to.

    They call us wind wankers, we call them a lot of other various names, then go over to their boats and drink all their booze and eat all the fish they caught. That was the deal wasn't it?

     

    I don't take it personally having been in both camps and the flappy canvas camp for way way longer I know there are offenders on both sides. Just seems to be the same people banging on about the same stuff day in and day out.

     

    At least my beer is viciously cold now.

  9. Not my Lady Margaret, that the 1939 Dick Laing one owned by a very senior Squadron member and Squadron General Committee member.

     

    Mines Colin Wild 1928 and much better looking ;)

     

    As I said, there will always be dickheads as he is no newbie so that only leaves one option.

     

    Take it up with Squadron if you feel strongly about it.

  10.  

    I think that clip demonstrates the average iq of the power boating fraternity very well

     

    I was posting to this comment which altho potentially tongue in cheek probably needed a mention, no reflection on many others on here IT.

     

    I wouldn't pass such a generalised comment on the yachties based on some of the horror story yacht behavior I see quite regularly....there will always be a few newbies or just dickheads in both camps.

  11. yee farken haw man that was farken awesome... that was amazing... I mean amazingly awsome man. Like I mean I'm awesome and your awesome yeee hawwww!

     

    I think that clip demonstrates the average iq of the power boating fraternity very well

     

    The launch bashing on here gets a bit tiresome and a lot of the luanchies are ex sailors with skills and knowledge far beyond anything you could possibly hope to achieve. 

     

    This forum has changed, it used to be a forum of knowledgeable sailors, sailmakers and associated trades. Now it feels more like daycare for newish sailors with an opinion on everything with a few more experienced and patient participants conducting daily pre-school for a few that want to question the validity rules of the road etc some of which have been in place for hundreds of years.

     

    Give it a rest, you might be surprised  just who has gone to the dark side and loving it, assuming otherwise makes more of an ass out of U not me...

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  12. Was it actually full of water and not air-locked up? I always run the hot tap prior to a good motor to flush any air out. 

     

    It takes roughly 10 x as much energy to heat the same volume of water as air so if its partially empty its likely to get way hotter than

    it should as its not transferring the energy (heat) to water.

  13. Question I've got is why was there diesel in your bilge? In theory the tankage should be a closed system with the only outlets to the engine, filler and breather.

     

    The filler and breather are both on the outside of the hull/deck so is there a leak between filler and tank or breather and tank that a bit of heel and full tanks demonstrates?

     

    You could run around never filling your tank right up but Id be looking for the source of the leak to the bilge as a part of the cleanup.

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  14. 4200 joule/litre/deg for water so 4200 x 13 deg = 54 KJ/litre 

     

    1 Watt = 1 J/second  so 50 watt lamp uses 50 joules of energy each second. 

     

    You should be able to work out the rest ....give you something to do whilst sitting at the barrier.

     

    Go...!

  15. Presumably your heat exchanger and exhaust manifold below are above water line so when its not running it will naturally (mostly) drain out of the exchanger and manifold which is a good thing and the anode isnt in action as there is minimal if any water left after a cool-down period so less corrosion issues for the components...

     

    I wouldn't worry about the few minutes per year its at idle other than wear on the impeller by not chucking enough water through at low revs. Get an aqualarm or similar if its not fitted, then at least you know you have some water going through the raw (seawater) pump although I switch mine off for docking when I'm hovering around idle.

  16. All the Lees Fords have the inclined top heat exchanger, should be an anode at each end as well. That air pocket isn't an issue as its a pretty open system and it flushes any air out real quick rather than air locking up.. You probably have anode (x2) in your transmission heat exchanger if it has one fitted. And don't forget the refridge one if it has mechanical refridge fitted.

     

    The secret to making those engines last is warming them up slowly as the water distribution when the thermostat is closed is pretty poor along the block with the front getting hot first and the rear still cold. That causes all sorts of expansion problems and can cause things like split wet exhaust manifolds which split in the middle as one end expands and the other doesnt. So warm it up progressively, I never open her up prior to North head after exiting Westhaven as it hasnt reached operating temp until about then...so around 15 to 20 minutes or until I see around 70 deg c on the temp gauge.

     

    Changing the injector pump oil every 50 hours is recommended as it gets thinned out over time and displaced by diesel that slowly leaks under pressure around the seal. Not to mention preventing wear it also reduces smoking when starting from cold.

  17. I only became a member 2 years ago when I sold out to the dark side and went classic launching.

     

    With only one motive power source it was a mandatory to me, when I had the flappy sail thingies as well I was never too worried.

     

    And in two years I have used it once when some visitors kid basically went around and turned everything on in the middle of the night and killed house and start batteries at Oneroa with a rising Northerly. So I was pleased when they came and gave me a start...

     

    With two modes of power I felt less vulnerable, possibly why a lot of sailors don't. A little more self reliant.

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