h
> LF39
> Port Orchard YC, WA.
>
>
>
> Original message ----
> From: Ron Ricci via CnC-List
> Date: 9/14/18 10:22 (GMT-08:00)
> To: cnc-list@cnc-list.com
> Cc: Ron Ricci
> Subject: Re: Stus-List padwheel analogue thru hull device
>
>
> ron.ri...@1968.usna.com
From: Doug Mountjoy [mailto:svrebeccal...@gmail.com]
Sent: Friday, September 14, 2018 3:23 PM
To: cnc-list@cnc-list.com
Cc: Ron Ricci
Subject: Re: Stus-List padwheel analogue thru hull device
Ron,
Does your speed sensor shoot through the hull? If so what
Fred Thanks for info.
Doug Mountjoy Rebecca Leah LF39 Port Orchard YC, WA.
Original message From: Frederick G Street via CnC-List
Date: 9/14/18 12:46 (GMT-08:00) To:
cnc-list@cnc-list.com Cc: Frederick G Street Subject: Re:
Stus-List padwheel analogue thru hull device
Doug — as far as I know, the ultrasonic speed sensors need to be through-hull,
as they work by detecting particles in the water and using Doppler shift to
gauge the speed. So they wouldn’t work in-hull.
— Fred
Fred Street -- Minneapolis
S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI
> On
:
Stus-List padwheel analogue thru hull device
I have an Airmar ultrasonic speed sensor. It accurately gives speed readings
through water to 0.1 knots. GPS gives speed over ground and isn't as
responsive as sensor. Ron RicciPatriot
On Fri, Sep 14, 2018, 1:09 PM James Bibb via CnC-List
Subject: Stus-List padwheel analogue thru hull device
Hi all,
I'm doing an overhaul of my electronics, and I have a general question for
those of you who have been through this before - Are the classic Padwheel Speed
Measuring instruments still worth keeping or have they gone the way of the
I have an Airmar ultrasonic speed sensor. It accurately gives speed
readings through water to 0.1 knots. GPS gives speed over ground and isn't
as responsive as sensor.
Ron Ricci
Patriot
On Fri, Sep 14, 2018, 1:09 PM James Bibb via CnC-List
wrote:
> Good question.
>
> I believe that it measures
Good question.
I believe that it measures speed of the boat instead of speed over ground which
is helpful when you are trying to judge movement and sail trim versus how fast
the tide could be moving the boat.
I know there are other sensors now that measure without the paddle.
> On Sep 14
Hi all,
I'm doing an overhaul of my electronics, and I have a general question for
those of you who have been through this before - Are the classic Padwheel
Speed Measuring instruments still worth keeping or have they gone the way
of the Steam Engine?
I'm pretty sure most Depth Transducer readers
