On 01 November 2019 at 15:35 Brent Cameron <brentcameron61@...> wrote:

Bill, a fluxgate isn’t a proprietary Raymarine term.  It is a relatively simple device consisting of iron cores surrounded by primary and secondary copper windings.  It is used to determine the magnetic fields of the earth.  They need to be level against the horizon to work and the old ones are usually gimbal stabilized or mounted in some sort of dampening fluid like a compass or use may even use electronic dampening so that it doesn’t swing with the boat yawing, pitching and rolling.  Newer models are often combined with gyro compasses which use the principle of a top spinning maintaining its orientation in space despite the world turning around it.  The fluxgate provides a stable long term reference to the magnetic field while the gyro provides short term dynamic stability and allows dampening of any external forces on it.  The challenge is that this takes a fair bit of energy to keep that gyroscope spinning and of course advances occur.  Now even newer units combine all this by using 3-axis fluxgates with the horizon vector being determined by a line perpendicular to gravity all done inside a small chip in silicon.  Y ou likely have one in your pocket with your iPhone.   

Brent Cameron, Future Amel owner & Amel Owner's Registry Moderator

--
Brent Cameron

Future Amel Owner & Amel Owner Registry Moderator

Oro-Medonte, Ontario, Canada

On Oct 31, 2019, at 8:39 PM, Matt Salatino via Groups.Io <helmsmatt@...> wrote:

I tried PropSpeed 3 separate times. (They certainly are proud of that stuff!)

I had the same results as you. Very unsatisfactory. I tried everything, and finally found a decent solution.

<image1.jpeg>

I use the spray. About $35 US for a can.

I use the whole can on my underwater metal, usually 3 or 4 coats on the prop. I burnish the fully dried paint with a heavy duty scotch brite pad, to expose the zinc (not on the edges, but the flats of the blades).

In an entire season, not a single barnacle or growth of any kind on the prop. And the paint stayed adhered to my stainless prop. I don’t burnish the other underwater metals, and do have some growth on them, so the burnishing is important. I spray the prop once a year.

~~~⛵️~~~Matt

On Oct 31, 2019, at 7:14 PM, Thomas Kleman <lorient422@...> wrote:

Looking for advice- I'm doing a bottom job in 6 weeks. Last year I used Propspeed on my Autoprop and 6 months later there was no evidence of it.....the barnacles however were flourishing. While I enjoy diving I like it better without a scraper in my hand.  Given the cost of Propspeed, 6 months is unacceptable. Would love to know if there's something better out there.

Tom and Kirstin
SV L'ORIENT
SM 2K 422
Bocas del Toro Panama

On 01 November 2019 at 12:14 Sv Garulfo <svgarulfo@...> wrote:

 

Hi Danny,

Thanks, I’ll keep my hear out for bad noises from there. 

Best,

Thomas

GARULFO 

A54-122

Fakarava, French Polynesia 

On 15 Oct 2019, at 09:55, Danny and Yvonne SIMMS < simms@...> wrote:

Hi Thomas, if amel used thecsame system as the sm the wire on the forestay is slathered with grease before it is inserted into the foil. This is to lubricate the wire/foil conection as the sail is rolled and unrolled. They used a high viscosity grease but in warmer areas it becomes a bit fluid and leaks out the bottom. Bit messy but not a big issue. Eventually it will need replenishing indicated by a scraping noise when you are furling. If you ever have the forestay off for any reason take the oportunity to grease the stay then.

Regards Danny

SM 299

Ocean Pearl

On 16 October 2019 at 08:20 Sv Garulfo < svgarulfo@...> wrote:

Hi all,

Recently our genoa furler tube started to leak a bit of grease at the connection with the furler motor.

Does anyone know how it should be topped up and with what type of grease? Any more permanent fix?

Note that the furler motor was upgraded to a Reckmann by the former owner and that the tube is a black, 2-rail one, which I believe is not the original (ie the 3-rail grey ones I’ve seen on other 54s). I wouldn’t think it matters too much to the problem though. 

Many thanks!

Thomas 

GARULFO 

A54-122

Fakarava, French Polynesia 

Looking for advice- I'm doing a bottom job in 6 weeks. Last year I used Propspeed on my Autoprop and 6 months later there was no evidence of it.....the barnacles however were flourishing. While I enjoy diving I like it better without a scraper in my hand.  Given the cost of Propspeed, 6 months is unacceptable. Would love to know if there's something better out there.

Tom and Kirstin
SV L'ORIENT
SM 2K 422
Bocas del Toro Panama