When I put in my B&G system I was surprised to figure out that not only did it need a knot meter for TWD, it wanted a compass transducer as well. The Zeus units won't use their internal COG data for the boat heading let alone speed. One other note about iPads. I recently chartered an older boat on vacation that only had an old 4" Garmin plotter below. I used my IPad Air successfully from the cockpit, but found that with the internal GPS on, it was draining the battery even while plugged in. Plus, plugging it in near the VHF created interference on the radio that made it unusable. This made me happy I have dedicated instruments! Jim Reinardy C&C 30-2 "Firewater"Milwaukee, WI
Sent from Outlook On Tue, Aug 11, 2015 at 11:16 AM -0700, "John Pennie via CnC-List" <cnc-list@cnc-list.com> wrote: Interesting comment - thanks. Curious if that is still the case. John > On Aug 11, 2015, at 1:58 PM, Michael Brown via CnC-List > <cnc-list@cnc-list.com> wrote: > > >> I wouldn't install a knot meter - Gps is fine > > No idea with the newer i50/60/70 series, but the older Raymarine > wind instruments used speed from the knot meter ( wheel in the thru hull ) > for calculating TWS and TWA. There didn't seem to be an option anywhere > to use GPS speed. > > Fred - any update on that? > > I may at some point upgrade the instruments on Windburn. I have mainly > ST50, with a new SPX/5 and one i70. The new stuff is nice but how much does > one spend on a '77 C&C 30-1? > > Michael Brown > Windburn > C&C 30 _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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