Re: M_Boats: Transducer/fishfinder/depth sounder
Randy: Thanks very much for your prompt reply regarding placement of the transducer.Do you know if threading the cable could be done through the same hole that the line to the swing centre board occupies. If so, then I could mount the transducer farther forward on the outer side of the hull,to enable a more advance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy the Garmin unit.Thanks again, Randy, and also to others who helped. Not to be out done by our good Yankee friends,since Dec.1,the temp. has hovered between -4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont.
Hello Harry..Happy Holidays. The centerboard line travels into the lead keel area and there is not a single place to mount any type of transducer. If you want kind of a forward (advance) look I suggest you mount the Transducer in the forward V Berth locker, off the centerline, so the boat can be put on and off the trailer without the bunks scaping off the transducer. The way to locate this 'spot' is to site down the bottom (bow, looking aft) and split the difference between the vertical side boards for the keel and the carpet covered wood bunk board. Put your finger on that spot and drill UP with a 3/16 drill bit. (but first, pre-measure forward enough so you know the hole will be in the V berth locker. Take a look inside; notice the hole isn't in a FLAT area, no worries. On and inside only transducer just follow the instructions. On a model that requires a mounting hole (usually about 1 inche or a little more) you are going to have to lay in some glass mat over the little hole and build that area up flat enough for the big plastic NUT on the backside of the transducer. After build up, drill out the 3/16 hole from below with a hole saw. (keep it level). Bed with Boatlife Caulk..etc.. Harry, I am sending you a series of Photos of a recent installation of a Sonar Type Transducer.....it was quite large and don't assume the pointy end goes forward...it doesn't.....hahah...yes, we mounted it facing aft by mistake. You will see the size of it in the photos and you can spot the location of it by the outside photos with the M_15 on the trailer. I can send you some Fiberglass material (mat/clothe) at no charge if you need some. Can't send resin or catalyst these days without a hassel. Get that from West Marine. Fair winds and Hi to Nancy..! Bob Eeg www.montgomeryboats.com (949) 489-8227
From: nanarry@shaw.ca To: montgomery_boats@mailman.xmission.com Date: Mon, 14 Dec 2009 10:20:28 -0500 Subject: Re: M_Boats: Transducer/fishfinder/depth sounder
Randy: Thanks very much for your prompt reply regarding placement of the transducer.Do you know if threading the cable could be done through the same hole that the line to the swing centre board occupies. If so, then I could mount the transducer farther forward on the outer side of the hull,to enable a more advance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy the Garmin unit.Thanks again, Randy, and also to others who helped. Not to be out done by our good Yankee friends,since Dec.1,the temp. has hovered between -4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
Some additional comments Harry: One big issue to keep in mind is the Transducer has to be mounted in a Level Position. On the side of the hull that has curves means you have to build a 'fiberglass mounting shoe' (see photos). This is not easy for the average person. You might consider hiring a pro to do the installation. Big issue number two is you might have to have a bigger battery. Etc... It might be worth doing a small unit and clips on the stern. Just angle it forward a bit. If anyone wants to see the photos of this set up let me know and I will forward them to you. Fair winds Bob Eeg www.montgomeryboats.com (949) 489-8227
From: ocean37@hotmail.com To: montgomery_boats@mailman.xmission.com Date: Mon, 14 Dec 2009 16:37:05 +0000 Subject: Re: M_Boats: Transducer/fishfinder/depth sounder
Hello Harry..Happy Holidays.
The centerboard line travels into the lead keel area and there is not a single place to mount any type of transducer.
If you want kind of a forward (advance) look I suggest you mount the Transducer in the forward V Berth locker, off the centerline, so the boat can be put on and off the trailer without the bunks scaping off the transducer.
The way to locate this 'spot' is to site down the bottom (bow, looking aft) and split the difference between the vertical side boards for the keel and the carpet covered
wood bunk board. Put your finger on that spot and drill UP with a 3/16 drill bit. (but first, pre-measure forward enough so you know the hole will be in the V berth locker.
Take a look inside; notice the hole isn't in a FLAT area, no worries. On and inside only transducer just follow the instructions. On a model that requires a mounting hole (usually about 1 inche or a little more) you are going to have to lay in some glass mat over the little hole and build that area up flat enough for the big plastic NUT on the backside of the transducer. After build up, drill out the 3/16 hole from below with a hole saw. (keep it level).
Bed with Boatlife Caulk..etc..
Harry, I am sending you a series of Photos of a recent installation of a Sonar Type Transducer.....it was quite large and don't assume the pointy end goes forward...it doesn't.....hahah...yes, we mounted it facing aft by mistake.
You will see the size of it in the photos and you can spot the location of it by the outside photos with the M_15 on the trailer.
I can send you some Fiberglass material (mat/clothe) at no charge if you need some.
Can't send resin or catalyst these days without a hassel. Get that from West Marine.
Fair winds and Hi to Nancy..!
Bob Eeg
www.montgomeryboats.com
(949) 489-8227
From: nanarry@shaw.ca To: montgomery_boats@mailman.xmission.com Date: Mon, 14 Dec 2009 10:20:28 -0500 Subject: Re: M_Boats: Transducer/fishfinder/depth sounder
Randy: Thanks very much for your prompt reply regarding placement of the transducer.Do you know if threading the cable could be done through the same hole that the line to the swing centre board occupies. If so, then I could mount the transducer farther forward on the outer side of the hull,to enable a more advance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy the Garmin unit.Thanks again, Randy, and also to others who helped. Not to be out done by our good Yankee friends,since Dec.1,the temp. has hovered between -4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
Harry, Sounds COLD in Thunder Bay Brrrr! I think a person can get the full benefit of the depth sounder without having to mount the transducer outside or through the hull. For a more forwarding-looking signal I think the location Gary Hyde described would do the trick! I believe the location Bob described is roughly the same place as well. There is an alternate suitable location on the M17 under the v-berth, roughly at where your knees would be from the bow and I am guessing the M15 would have roughly the same location. It is where the curve of the bow transitions into the bottom of the hull. The fiberglass is thicker in this area but I was able to get suitable and consistent forward looking depth reading, but not as good of a bottom contour reading. Some things to think about when considering transducer location vs displayed information. The signal angle from the transducer is quite large allowing you to see a larger area under the boat than you might at first think, depending on water depth. The update speed of the charted display may or may not be useful in seeing underwater obstacles while motoring or sailing. Both units I tested determine water depth from the return signal directly under the transducer. While sailing I found the numeric depth display the most useful information. When anchoring I found the display of the bottom contour and depth the most useful. Displaying of battery voltage and water temp are just an added plus! My thought is to use a glob of silly putting and play with sticking the transducer to different locations inside the hull and see what performance you get before opting for a thru-hull or exterior transducer installation. Merry Christmas, Randy Graves M17 #410 On Mon, Dec 14, 2009 at 7:20 AM, Harry & Nancy <nanarry@shaw.ca> wrote:
Randy: Thanks very much for your prompt reply regarding placement of the transducer.Do you know if threading the cable could be done through the same hole that the line to the swing centre board occupies. If so, then I could mount the transducer farther forward on the outer side of the hull,to enable a more advance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy the Garmin unit.Thanks again, Randy, and also to others who helped. Not to be out done by our good Yankee friends,since Dec.1,the temp. has hovered between -4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
Another approach to the silly putty is to use a gallon ziplock bag filled with water. Place the transducer on it to eliminate the bubbles. You can move it around to various locations a lot quicker, I'm guessing. This is a nice timely discussion because a depth sounder is at the top of my winter list. Joe M17 Seafrog #651 ----- Original Message ----- From: "R.K.Graves" <rkgraves@gmail.com> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Monday, December 14, 2009 2:21 PM Subject: Re: M_Boats: Transducer/fishfinder/depth sounder Harry, Sounds COLD in Thunder Bay Brrrr! I think a person can get the full benefit of the depth sounder without having to mount the transducer outside or through the hull. For a more forwarding-looking signal I think the location Gary Hyde described would do the trick! I believe the location Bob described is roughly the same place as well. There is an alternate suitable location on the M17 under the v-berth, roughly at where your knees would be from the bow and I am guessing the M15 would have roughly the same location. It is where the curve of the bow transitions into the bottom of the hull. The fiberglass is thicker in this area but I was able to get suitable and consistent forward looking depth reading, but not as good of a bottom contour reading. Some things to think about when considering transducer location vs displayed information. The signal angle from the transducer is quite large allowing you to see a larger area under the boat than you might at first think, depending on water depth. The update speed of the charted display may or may not be useful in seeing underwater obstacles while motoring or sailing. Both units I tested determine water depth from the return signal directly under the transducer. While sailing I found the numeric depth display the most useful information. When anchoring I found the display of the bottom contour and depth the most useful. Displaying of battery voltage and water temp are just an added plus! My thought is to use a glob of silly putting and play with sticking the transducer to different locations inside the hull and see what performance you get before opting for a thru-hull or exterior transducer installation. Merry Christmas, Randy Graves M17 #410 On Mon, Dec 14, 2009 at 7:20 AM, Harry & Nancy <nanarry@shaw.ca> wrote:
Randy: Thanks very much for your prompt reply regarding placement of the transducer.Do you know if threading the cable could be done through the same hole that the line to the swing centre board occupies. If so, then I could mount the transducer farther forward on the outer side of the hull,to enable a more advance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy the Garmin unit.Thanks again, Randy, and also to others who helped. Not to be out done by our good Yankee friends,since Dec.1,the temp. has hovered between -4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet!
Randy, I have an M-15 and have played with the location of the transducer with little success. The ideal location would have been in the forward hatch just forward of the ballast bubble. This location did not work for me, nor did any other location within the hull. The only reliable location was outside of hull. I created a quick mount using some 1/2 pvc pipe and ran the transducer wire through the pipe and back to the cockpit. I mounted the pvc pipe to the bow via the bow eye (used to attached the bow to the winch). This was a quick and dirty mount just to determine the functionality of the unit since the thru hull option did not appear to be working. My unit is a simple Hawkeye unit that numerically displays the depth. I am guessing the transducer is not powerful enough to shoot thru the hull. My only use for the unit is to tell me when the water is getting to shallow. I will be spending time this winter pondering how to mount the unit externally without drilling holes or having wires running everywhere. Any thoughts would be appreciated. Is silly putty a better mounting solution then silicone? Thanks, Skip Campion M-15 #208 -----Original Message----- From: R.K.Graves <rkgraves@gmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Mon, Dec 14, 2009 2:21 pm Subject: Re: M_Boats: Transducer/fishfinder/depth sounder Harry, Sounds COLD in Thunder Bay Brrrr! I think a person can get the full enefit of the depth sounder without having to mount the transducer utside or through the hull. For a more forwarding-looking signal I hink the location Gary Hyde described would do the trick! I believe he location Bob described is roughly the same place as well. There is n alternate suitable location on the M17 under the v-berth, roughly t where your knees would be from the bow and I am guessing the M15 ould have roughly the same location. It is where the curve of the bow ransitions into the bottom of the hull. The fiberglass is thicker in his area but I was able to get suitable and consistent forward ooking depth reading, but not as good of a bottom contour reading. Some things to think about when considering transducer location vs isplayed information. The signal angle from the transducer is quite arge allowing you to see a larger area under the boat than you might t first think, depending on water depth. The update speed of the harted display may or may not be useful in seeing underwater bstacles while motoring or sailing. Both units I tested determine ater depth from the return signal directly under the transducer. hile sailing I found the numeric depth display the most useful nformation. When anchoring I found the display of the bottom contour nd depth the most useful. Displaying of battery voltage and water emp are just an added plus! My thought is to use a glob of silly putting and play with sticking he transducer to different locations inside the hull and see what erformance you get before opting for a thru-hull or exterior ransducer installation. Merry Christmas, andy Graves 17 #410 On Mon, Dec 14, 2009 at 7:20 AM, Harry & Nancy <nanarry@shaw.ca> wrote: Randy: Thanks very much for your prompt reply regarding placement of the ransducer.Do you know if threading the cable could be done through the same ole that the line to the swing centre board occupies. If so, then I could mount he transducer farther forward on the outer side of the hull,to enable a more dvance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy he Garmin unit.Thanks again, Randy, and also to others who helped. Not to be ut done by our good Yankee friends,since Dec.1,the temp. has hovered between 4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet! _______________________________________________ ttp://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet!
Hi Skip, Pretty ingenious mount for your Hawkeye transducer! My "plan b" if I could not get a good signal through the hull was to mount the transducer on the transom. Both units came with a stainless steel bracket intended to be mounted on the transom. One unit also came with the option to mount the transducer to the bottom of an outboard. If I didn't raise the outboard when sailing that would have been a good option. A transom mounted transducer would reduce the chance of seeing an approaching underwater hazard. I think because these units are primarily intended as fish finders, that is why the transom mounting bracket is included. When sailing I'm consumed with handling the boat and never think to look at the units display. Both the units I've worked with have shallow/deep water alarms, those might prove handy. I only turn the unit on when I suspect shallow water, when trying to find a good spot to anchor, or just to playing with it and watching for fish. I got the idea of using silly putty from someone else on the list. It is sticky enough to hold the transducer temporarily to most any place on the hull and easily removable and reusable. For a permanent installation I have ready, as Gary Hyde mentioned, the use of pure silicone. The manual that came with the Garmen suggested slow setting epoxy for mounting to the interior of the hull. Slow setting as to allow air bubbles time to escape. Air bubbles between the transducer and the hull seem to significantly degrade performance. It was Scott Grometter, I believe, who used a handheld Hawkeye on his M15. When wanting to anchor he held it over the side to measure water depth and otherwise kept it stored. Merry Christmas, Randy Graves M17 #410 On Mon, Dec 14, 2009 at 12:50 PM, <wcampion@aol.com> wrote:
Randy,
I have an M-15 and have played with the location of the transducer with little success. The ideal location would have been in the forward hatch just forward of the ballast bubble. This location did not work for me, nor did any other location within the hull. The only reliable location was outside of hull. I created a quick mount using some 1/2 pvc pipe and ran the transducer wire through the pipe and back to the cockpit. I mounted the pvc pipe to the bow via the bow eye (used to attached the bow to the winch). This was a quick and dirty mount just to determine the functionality of the unit since the thru hull option did not appear to be working. My unit is a simple Hawkeye unit that numerically displays the depth. I am guessing the transducer is not powerful enough to shoot thru the hull. My only use for the unit is to tell me when the water is getting to shallow. I will be spending time this winter pondering how to mount the unit externally without drilling holes or having wires running everywhere. Any thoughts would be appreciated. Is silly putty a better mounting solution then silicone?
Thanks, Skip Campion M-15 #208
-----Original Message----- From: R.K.Graves <rkgraves@gmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Mon, Dec 14, 2009 2:21 pm Subject: Re: M_Boats: Transducer/fishfinder/depth sounder
Harry, Sounds COLD in Thunder Bay Brrrr! I think a person can get the full enefit of the depth sounder without having to mount the transducer utside or through the hull. For a more forwarding-looking signal I hink the location Gary Hyde described would do the trick! I believe he location Bob described is roughly the same place as well. There is n alternate suitable location on the M17 under the v-berth, roughly t where your knees would be from the bow and I am guessing the M15 ould have roughly the same location. It is where the curve of the bow ransitions into the bottom of the hull. The fiberglass is thicker in his area but I was able to get suitable and consistent forward ooking depth reading, but not as good of a bottom contour reading. Some things to think about when considering transducer location vs isplayed information. The signal angle from the transducer is quite arge allowing you to see a larger area under the boat than you might t first think, depending on water depth. The update speed of the harted display may or may not be useful in seeing underwater bstacles while motoring or sailing. Both units I tested determine ater depth from the return signal directly under the transducer. hile sailing I found the numeric depth display the most useful nformation. When anchoring I found the display of the bottom contour nd depth the most useful. Displaying of battery voltage and water emp are just an added plus! My thought is to use a glob of silly putting and play with sticking he transducer to different locations inside the hull and see what erformance you get before opting for a thru-hull or exterior ransducer installation. Merry Christmas, andy Graves 17 #410
On Mon, Dec 14, 2009 at 7:20 AM, Harry & Nancy <nanarry@shaw.ca> wrote: Randy: Thanks very much for your prompt reply regarding placement of the ransducer.Do you know if threading the cable could be done through the same ole that the line to the swing centre board occupies. If so, then I could mount he transducer farther forward on the outer side of the hull,to enable a more dvance warning of rocks- a foreword-looking sonar beam. Also, I think I'll buy he Garmin unit.Thanks again, Randy, and also to others who helped. Not to be ut done by our good Yankee friends,since Dec.1,the temp. has hovered between 4F and -10F. All the best! Harry Elmslie,Thunder Bay,Ont. _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
_______________________________________________ ttp://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Remember, there is no privacy on the Internet!
participants (5)
-
Bob From California -
Harry & Nancy -
Joe Murphy -
R.K.Graves -
wcampion＠aol.com