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About birger75

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    Oslo Norway
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  1. birger75

    B&G to Expedition

    Rs233 to USB should work fine Better to stay away from the NMEA as it’s slow - using Hlink is better - post a question in expedition forum
  2. birger75

    Wind transducers - tall vs short

    I have the gWind race in my boat - the calibration with Garmin really sucks only +-1 degree alignment and I could not get the correction programs to work on my computer. Ended up using expedition as the calibration system. The numberes still jumped quite a bit so bought a h5000 Hercules on eBay - now it really works great. The mounting base plate for the gWind race is not great because it does not have any alignment by it self and over time I think there will be issues with securing it properly. Looks cool and works well so far
  3. birger75

    B&G Zeus 2 Polars

    the GNX120's works great with H5000 - the only thing you dont get is the performance data as its proprietory. We use custom channels for that with expedition and that works like a charm.
  4. birger75

    Garmin Instruments - Any Experience

    In my boat (Mumm30) we had a NKE system that was really old and not really working. We replaced it with a complete Garmin system, Gwind race, 3 X GNX120, spedo, gps, barometer and a Maretron gyro compass Initially we where really happy with it but when we tried to calibrate using the Garmin system it was unusable. Basically calibrating TWA was not possible to get right and getting a consistent accurate boat speed was also useless. we had a 5-7% error all the time So to resolve that we bought a laptop with expedition and used that to recalibrate all the instruments and then send the values on deck as custom channels. This worked ok, but the damping on the custom channels + some noise makes the wind angles jump a bit to much. Better but not great. At the end of the last season i bought a B&G H5000 Hercules cpu in the hope that i could recalibrate everything and send the n2k sentences to the Garmin displays. This works really well. Since then the instruments are much better in terms of numbers, and filters etc and the Garmin GNX displays are really great. The only thing to make sure is the setup of sources in the displays. Once thats done - its all magic. We still use expedition to send targets and nav data to the displays. The wind angles and speed cals on and the H5000 and the nice Garmin displays works great for us. I really like the N2K standard as it makes everything compatible. The only problem we had was that we could not access the h5000 from the Garmin instruments - so we have a b&g zeus2 waiting to get fitted. So after we fitted the H5000 cpu our numbers are much better, much more stable with a lot less noise.
  5. birger75

    Ethernet B&G H5000 and WIFI Mobile Hotspot

    In our boat we have the h5000 connected to a laptop using wired Ethernet. The port on the laptop is static and set to On the laptop I run connectify. This app sets up a WiFi with a 192.168.2.x in the boat so we can access expedition using an iPad. In connectify i set what ever network available as internet. This setup works quite well.
  6. birger75

    Mainsail cloth choice

    I bought a Nort 3di race wardrobe this season - really love it. Compared to normal 3di it’s not as stiff and a bit easier to trim. For be the winning argument is the longevity, weight and ease of use. After using them a season I have to say it’s a huge difference compared to our 3dl wardrobe. Much better shape across wind ranges and more responsive to trim I have a farr 30 /b
  7. birger75

    B&g h5000 motion sensor spec

    I just wandered about the specs on the B&g thing, as it’s not on their website or documentation
  8. birger75

    B&g h5000 motion sensor spec

    Anyone know the accuracy on this sensor, it’s not specified on their website. Just thinking, I get reliable heel and pitch data from my Maretron ssc220 compass. So what is the best sensor to correct twa /B
  9. Hi, i have connected my gwind race to the h5000 cpu using N2K, now does anyone know if and how to connect directly as analogue input in stead? My theory is that it would provide faster updates and better calibration if I connected directly... not sure wow to connect or calibrate though... /B
  10. birger75

    TWA or AWA

    We set a target speed for upwind, we try to consistently hit that speed. We also look at vmg% to make sure we point. On the downwind we try to hit our target twa. As we sail asymmetrical, the speeds jump a bit up and down depending on puffs and pressure. The goal are to sail as deep as we can without loosing to much speed, however target twa is our main info on helming downwind.
  11. birger75

    TWA or AWA

    I guess the main reason we are only using twa is that in a gust, your awa moves forward, so you pinch, and also in a lul the awa moves aft as the boat accelerates slower than the wind. Also it’s easier to compare true and targets
  12. birger75

    zero the hero

    I have a Mumm/Farr 30 we sail it under ORC. The first few years, really frustrating, now not so much These boats are harder to sail than a 5 knot shit box. The require structure and patience. So if the goal is to sail once a month, its the wrong boat for sure. For a weekend worrier its a great boat. It rates fine once you crack "how to make it go". The boat requires great starts and you cannot do much errors because the penalties are much higher due to higher rating. I believe compared to the broader more modern boats they rate great in light airs due to less wetted surface. This thread to me is wining for being poor, sailing is unfair. in this sport, spending more resources, makes you go faster....
  13. birger75

    Nexus NX systems

    Hi, This spring i refitted my boat (farr 30 ) with a garmin system. I did consider a B&G H5000, being used to the H3000 quite a bit, but 3X $ in comparison - i just figured that Garmin was a way better deal - and i could spend more on sails. I have a GND10 connected to my gwind race transducer, some issues with the GND10, turns out it does not convert every N2K sentence, and for some reason i cannot use the advanced calibration since the nexus race software is not able to connect for some reason. I guess it expects the nexus server, however after buying expedition and Actisence i have all the info and much more on deck on the gnx 7" displays. And its actually great some stuff still with calibration but we are getting there. The TWD, TWA and TWS is a whole lot better and jumps around a whole lot less. Drawback is complexity and the fact that i need a computer in a rather wet boat As for compass, i bought a Maretron SSC220 on ebay - its fantastic compared to most other compasses I have ever used (b&g and raymarine). I have been used to the heading jumping up and down a lot, especially in waves, now without any damping its just totally stable and helming +- 1 or 2 degrees is quite easy while keeping the update rate at high The bummer is that Garmin dont support the attitude sentence in N2K so i use expedition to send alternating heel and target heel. I would actually say - garmin system paired with expedition is quite powerful given that you use expedition to process data.
  14. birger75

    Shorthanded Sport Boat

    Melges 20?