littlechay

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littlechay last won the day on September 25 2018

littlechay had the most liked content!

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About littlechay

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    Anarchist

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    http://www.tweedsworld.com

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  • Location
    Nelson
  • Interests
    sailing, photography, boat building, electronics, communications.

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  1. littlechay

    Vendee Globe 2020

    Easy spot to acess but tricky to see the rudders
  2. littlechay

    Vendee Globe 2020

    Looks like some interesting routing decisons to be made due to the big bulge in the last ice limit change.
  3. littlechay

    Vendee Globe 2020

    Fairly good security in most places suitable in Cape Town. But perhaps somewhere in the V&A basin where somebody could get a look .
  4. littlechay

    Vendee Globe 2020

    It is not icebergs that sink boats (Titanic excepted) as generally you can see them, the naked eye is best, then RADAR, then when up close and its too late FLIR. The big danger comes from growlers (chunks of ice about the size of a car and floating with maybe 10cm above the surface). The growlers come off bigger bergs as they are erroded by the action of the sea and melt due to termperature. Growlers won't last long in the warmish water of the race track so provided you know where the big bergs you can analyse with reasonable accuracy where there might be growlers. The growlers being mostly under water drift with the surface current which is generally in the direction of the prevailing winds. Provided you pick up the big bergs you can pass to windward and most of the crap in the water. I don't know the exact calculations and models use but I expect that they monitor the locatation of all bergs above a certain size then work out a drift pattern and temperature profile which would give an estimate of how far the growlers will survive (the buffer zone).
  5. littlechay

    Vendee Globe 2020

    There is a lot less garbage in those latitudes than in the parts of the oceans surrounded by the more populus landmasses in the the north. Currents, basically, don't cross the equator so most of the trash stays north. It is still about of course but it is usually broken fishing gear (Hugo Boss) plastic bags, and polystyrene that I see though.
  6. littlechay

    Vendee Globe 2020

    Somebody was asking about ice danger... virtually none anymore. Going back to beginnings of Vendee, Whitbread etc.. it was certainly there as they routed along the great circle and would have taken a short cut across Antarctica if the boats had been equiped with wheels. However the boats were stronger and the speeds slower so a lot less energy involved. Back in the mid 2000's there was a lot of ice for a few years after a couple of big ice shelves broke up ... the icebergs are released onto the race track a year or three after the ice shelf calves... so look out for the next edition ( the ice limit will probably run from the River Plate to Cape Town.). Off of ice and onto on possible explaination for the UFOs. In these latitudes further west I have seen huge pods of various members of the dolphin family; Orcas, Pilot Whales, Southern Right Whale dolphins and various smaller dolphins numbering thousands of animals covering a huge area. If you plowed into one of those at 25 knots a collison would be very very likely. Any one of those animals would be big enough break a foil or whatever. The pods are surprisingly hard to see, from sea level, in boisterous conditions. I vividly remember coming up one one these in thirty knots or so of wind doing about 8 - 10 knots, coming up to dusk. I was on deck and spotted them first a couple of hundred metres ahead ( a swell or two ); with me in the cockpit was a professional film-maker who dived for his camera to film it.. He picked the camera up and started to film and then just said "fuck it I'll never get anything decent in the can I'm just going to watch." This time of year you have those pods around and the big whales are migrating south too but most will also be further south by now, I think.
  7. littlechay

    Vendee Globe 2020

    Up in your neck of the wood perhaps. Not down there.
  8. littlechay

    Vendee Globe 2020

    I'm cutting my gear free and letting him go..... I'm off to bed. Amusingly I am prepping a commercial boat for radio survey tomorrow
  9. littlechay

    Vendee Globe 2020

    If I am interpreting the photo correctly that is the trailing edge that would have been inside the foil well at the time of impact and crushed against the aft part of the guide/clamp. The outer part of the foil is probably/possibly in better condition.
  10. littlechay

    Vendee Globe 2020

    There is no requirement to fit 121.5MHz gear... if you have it you must monitor it. Yea I know what it sounds like.. However the beacon receivers are not normally listend too.. you confusing homing and the SAR alert system that used to exist once upon a time.
  11. littlechay

    Vendee Globe 2020

    Oh dear.. You are struggling... What part of 121.5 Beacon reciever don't you understand.. Try reading that again paying particular attention to "inter pilot air to air". As I mentioned in my first post.. if any old aircraft are still equiped with a beacon monitor they might hear it. ..... only if they are equipped with it. While you are at it look up NAT region and note how much of it overlaps the Vendee race track. Perhaps this will help educate you.. a very quick Google seach brings this up; which summarises what you have been told above... Dec08TheEndIsNearFor1215MHz.pdf (aea.net)
  12. littlechay

    Vendee Globe 2020

    If you want Chinse have a look at the stuff from these guys ONWA Marine Electronics Co. Ltd. - it is actually good value for money. I have installed a few units that clients have self sourced.
  13. littlechay

    Vendee Globe 2020

    Check the specs for the actual manufactured product.. not the mythical mockup MATE. Your commercial jet info is older then your brochure... Why don't you just admit you don't know what you are talking about Mr. Turdsson.
  14. littlechay

    Vendee Globe 2020

    Not in PLB format though.. Unless it is a new to market. Got a link. They are have PLB/SART but not EPIRB/AIS in PLB format .
  15. littlechay

    Vendee Globe 2020

    This is the page and device that you mention SA 16+ 121,5/AIS (seaangel.at) It makes no mention of 406MHz EPIRB functionality.. Because it doesn't have it.!!!!! Jack is right the only thing monitoring 121.5MHz these days are SAR choppers and if you are lucky and sinking in the North Atlantic an old commercial jet with a 121.5MHz beacon receiver might fly overhead; but I don't know if any of those dinsoars are still in service.