David Poeltl
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  • Naples, FL
  • United States
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David Poeltl's Discussions

p70 installation problem

Started this discussion. Last reply by elvira Jul 15. 4 Replies

I just installed a brand new autopilot system comprised of an X30 corepack, a type 2 linear drive, an i70 and a p70 controller. Initially, it was wired up with a second controller (ST6001), and an…Continue

True wind speed calculation and GPS data

Started this discussion. Last reply by NKO, Raymarine, US Apr 5, 2013. 10 Replies

Raymarine wind instruments apparently only accept boat speed information from a speed transducer, not GPS SOG data to calculate true wind speed & direction. My question is: Is anyone aware if…Continue

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Latest Activity

elvira replied to David Poeltl's discussion p70 installation problem
"I have a similar problem.  I have a smartpilot x30 and control head  I have the nmea 0183 connected to my garmin 7000 chartplotter  I receive the fluxgate compass data in my chartplotter, but not the data from my chartplotter in the…"
Jul 15
Underway - Raymarine, US replied to David Poeltl's discussion p70 installation problem
"Good to hear the issue is resolved.  Contact us with any further questions. Happy Boating."
Aug 1, 2013
David Poeltl replied to David Poeltl's discussion p70 installation problem
"Thank you! Sending chartplotter NMEA 0183 data directly to the X30 NMEA input worked immediately. I'm not sure why it didn't work when the NMEA data went to the E85001, then out onto the seatalk network. The i70 had displayed the lat/lon,…"
Jul 30, 2013
Underway - Raymarine, US replied to David Poeltl's discussion p70 installation problem
"In order for the p70 to show True heading it would need input from a chartplotter in order to get the variation information in the location you are in.  You would need to make sure the Garmin unit output True Heading data over NMEA 0183."
Jul 29, 2013
David Poeltl posted a discussion

p70 installation problem

I just installed a brand new autopilot system comprised of an X30 corepack, a type 2 linear drive, an i70 and a p70 controller. Initially, it was wired up with a second controller (ST6001), and an ST60 graphic, using a seatalk to seatalk ng converter. My chartplotter is a Garmin 5212, connected thru an E85001 NMEA/Seatalk interface.Everything checked out during the sea trial commissioning, with 5 degrees of deviation after swinging the compass and the autopilot passed all tests and performed…See More
Jul 27, 2013
NKO, Raymarine, US replied to David Poeltl's discussion True wind speed calculation and GPS data
"Apparent Wind = the wind speed and direction in relation to your boat. So in a dead calm motoring ahead at 10 knots, you would have a 10 knot apparent wind at 0 degrees. True Wind = the wind speed and direction in relation to the WATER. In the…"
Apr 5, 2013
NKO, Raymarine, US replied to David Poeltl's discussion True wind speed calculation and GPS data
"Andrew,  Thanks for the product feedback.  A feature suggestion was logged back in December of 2012 to consider this feature for inclusion within any future MFD software updates.     Raymarine welcomes feature requests and…"
Apr 5, 2013
Andrew replied to David Poeltl's discussion True wind speed calculation and GPS data
"Thanks - but you still havent addressed the fundamental flaw in the reasoning, I read the article.  Say I am at anchor, and there is a 5 knot current from the bow, and a 10 knot wind from the bow, whats the true wind, - clearly its 10 knots.…"
Apr 5, 2013
william hume replied to David Poeltl's discussion True wind speed calculation and GPS data
"I would like to add ground wind to this discussion. I have classic E mfd's, and st60 wind. The classic E takes the wind information, uses COG and SOG to compute ground wind. The problem is when the boat has no SOG, the COG becomes a random…"
Apr 5, 2013
NKO, Raymarine, US replied to David Poeltl's discussion True wind speed calculation and GPS data
"Hello Andrew,  The algorithm to determine true wind is a marine industry standard and not just “Raymarine’s” way.   The above entry includes a link to a very good Ockam article addressing True Wind calculation. …"
Apr 5, 2013
Andrew replied to David Poeltl's discussion True wind speed calculation and GPS data
"With Respect - using boat speed is silly.  This issue is the single biggest complaint I have with my Raymarine gear, in fact its the only complaint I have.  Say I am doing 5 knots boat speed into a 5 knot current, ZERO SOG.  Say…"
Apr 5, 2013
Underway - Raymarine, US replied to David Poeltl's discussion True wind speed calculation and GPS data
"I will relay this response to the product management team for a feature request in the future.  Thank you again Stuart for your insightful input."
Dec 3, 2012
David Poeltl replied to David Poeltl's discussion True wind speed calculation and GPS data
"Thanks to Stuart & rhino horn for your replies. I was not properly differentiating between ground & true wind (basically equating them) and now understand the technical definitions. However, as a long distance cruiser as opposed to a racer,…"
Dec 1, 2012
Underway - Raymarine, US replied to David Poeltl's discussion True wind speed calculation and GPS data
"Thank you Stuart for your response, that is the exact response from our engineers, using SOG is not True Wind it is Ground Wind."
Nov 30, 2012
Stuart Brand replied to David Poeltl's discussion True wind speed calculation and GPS data
"True wind needs to use speed from the transducer otherwise it wouldn't be true wind, because the transducer "ignores" the effect of tide or current (unlike COG/SOG would).  If you used GPS SOG you'd get different true wind…"
Nov 30, 2012
David Poeltl posted a discussion

True wind speed calculation and GPS data

Raymarine wind instruments apparently only accept boat speed information from a speed transducer, not GPS SOG data to calculate true wind speed & direction. My question is: Is anyone aware if Raymarine has any plans to change the programming for (future) wind indicator instruments to use GPS input?See More
Nov 30, 2012

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Models of Raymarine Product(s) Owned or Considering
SmartPilot autopilot, ST60 Wind, ST60 Tridata, VHF

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F John Draeger replied to F John Draeger's discussion Wind transducer data to Corepak 150 autopilot computer with Seatalk to Seatalk ng converter in network
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elvira replied to David Poeltl's discussion p70 installation problem
"I have a similar problem.  I have a smartpilot x30 and control head  I have the nmea 0183 connected to my garmin 7000 chartplotter  I receive the fluxgate compass data in my chartplotter, but not the data from my chartplotter in the…"
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