Re: [Amel Yacht Owners] B&G Sonic Speed

Bill & Judy Rouse <yahoogroups@...>


How much did it cost you?

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jul 11, 2016 8:24 AM, "Ian & Judy ianjudyjenkins@... [amelyachtowners]" <amelyachtowners@...> wrote:

Hi Bill,

 I agree with everything you write about B&G speed sensors, except the costs of withdrawing and replacing the sensors--assuming that you can get hold of new ones.

We changed our sensors when they failed after 9 years. Obviously, the boat has to be out of the water, but we didn't have to cut them out. Instead:

Detach the inboard end of the wire leading to each sensor  and make sure that it is free to run down the channel to the sensor

Drill a short hole in the exposed end of the sensor and insert a screw

Pull on the screw with pliers . This will withdraw the sensor ( a black tube about 6 inches ( 15 cm ) long ) from the hull

Pull out until a short piece of the wire to the back of the sensor is exposed.

Cut this wire and use it as the messenger line to pull in the wire on the new sensor

The new sensor will prove a snug fit into the cavity in the hull. We put a dab of sealant on it.

Connect the inboard end of the wire to the B&G box and off you go.

 Ian and Judy, Pen Azen, SM 302 ,Preveza

From: amelyachtowners@... <amelyachtowners@...> on behalf of 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...>
Sent: 11 July 2016 12:06:13
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] B&G Sonic Speed

It is impossible for one of us to know why, you are experiencing this problem. However, let me offer some insight and possibly some advice:
1.) The B&G sensors have to be clean.

2.) The B&G sensor sensitivity adjustment has to be correct and usually requires a B&G certified technician and many of those cannot get it done correctly. Ask around to find the BEST AND CERTIFIED B&G technician and have him check things out.

3.) The B&G sensors will fail and they have to be replaced in pairs and cut from the hull when out of the water. This is an expensive job at probably 3, 000 - 5,000 euros.

4.) The B&G sensors are no longer made by B&G and you probably cannot find them.

If the B&G technician tells you the sensors are bad, your options probably are:
1) Drill a hole in the hull near the current depth sensor and add a new B&G Paddlewheel or a B&G compatible through-hull sonic speed sensor.
2 Buy a SOG to SOW converter from Tinley Electronics in the UK, connect it to NMEA GPS and the B&G computer where the paddlewheel sensor connects. This will give you all accurate information, your boat speed gauge will work, and everything will be reported on the FFD including True wind, etc., BUT, the information will be slightly off when you have current.

Unfortunately, I believe it is impossible to remove the B&G depth sounder and replace it with a combo depth/speed sounder that will talk to B&G...BUT, things change...if anyone knows the answer to this it will be Tinley Electronics. Email sarah"at"

I hope this helps you.

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jul 11, 2016 5:39 AM, "ofer magen magenofer@... [amelyachtowners]" <amelyachtowners@...> wrote:

Hi to all.

I have my Amel 54 #160 2010,for a year now.

I follow the forum every day,trying to learn from this great place of knowledge . I still have a long way to go but I enjoy the process. Thanks to all of you.

Since the first day ,I had the boat speed come and go ,on the hydra and the analog b&g.
When the boat speed appears it is accurate. 

Emek in Turkey could not fix it,so I changed the display on the hydra to speed over ground.
I cannot see true wind speed.

Any ideas? 
Can someone send me the manuals?

Thanks ,
Ofer Magen
Alba, Amel 54 160, 2010


Ours goes whacky when we run the microwave!

Bill Kinney
SM #160, Harmonie
Highlands, NJ

On Jul 9, 2016, at 06:19, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

I think small debris and whirling or whipping current will cause what happened. I experienced abarnacle on one of the sensors which basically shut it down.

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jul 9, 2016 5:25 AM, "divanz620@... [amelyachtowners]" <amelyachtowners@...> wrote:

Thanks Colin,

yes, its all a bit strange...
Glad you're enjoying the updates...
I have to say there's not many cruising yachts up here this season....maybe the fear of the last cyclone or the bad weather down south hampering getaways...but it's great here.
Elyse SM437
18 22.87S, 178 09.14E

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