Henry, Check with a magnet on the 'keelson' strake on the centerline of the hull forward of the intersection of the stub portion of the keel to see if you have steel knockouts in the area - - if you find a clear spot, try temporarily mounting there, as the transducer will be forward of the keel and you will get readings (esp. in shallow water) that will coincide with 'real time' depths - ahead of the keel/board, This location is also out of the way of the convenient storage bin area below the cockpit sole near the companionway FWIW. My speed transducer is mounted thru the hull about 6 to 7+ inches ahead of the keel stub on the C/L and I had to drill thru steel -it ate almost 3 good Lennox bi-metal hole saws!! Check first and see if you can get a reading. Our older boats have the ballast spread along the keelson area fore and aft from my experiences with #316 and the older (steel ballast) models. Lead ballasted boats 'probably' have less ballast in the keelson strake? Jerry can chime in here.... I never ran aground til PaintBoy was sailing the boat at Havasu one year - - been 'bumping' once or twice a year ever since - funny how that goes!?! {;>) Have fun, Go Sailing, GO In a message dated 4/6/2017 1:26:44 P.M. US Mountain Standard Time, rkgraves@gmail.com writes: Hi Henry, On my '88 M17 there is a cavity at the aft end of the keel trunk. I placed my depth sounder transducer there and submerged it in a few inches of water. Works well. On Thu, Apr 6, 2017 at 9:43 AM, Henry Rodriguez <heinzir@gmail.com> wrote:
I know this has been discussed before but I can't seem to find the references. Where is the best place to mount an interior "shoot thru the hull" depth sounder transducer on an older M17? Pictures and/or measurements would be appreciated. Thanks!
-- Henry https://picasaweb.google.com/heinzir
Thanks all, I made the mistake of epoxying the transducer in place under the v-berth while the boat was on the hard last fall. I wasn't able to test it until the WICR in Arizona in February. Of course it didn't work at all. I think I didn't get it forward far enough. I didn't know about any steel plate in the area. Fortunately I have been able to pop the transducer off without damage. Apparently the 'ducer's slick surface did not give the epoxy a very strong grip. I will be launching the boat for the season in a week or two and will be able to experiment with locations. I'm thinking centerline, under the v-berth, as far forward as I can reach from the forwardmost access opening. I'm not adverse to cutting a new access hatch farther forward, if anyone thinks this is adviseable. The transducer, by the way, is specifically designed for "shoot-thru" applicatioons. Henry On Thu, Apr 6, 2017 at 6:43 PM, GILASAILR--- via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
Henry,
Check with a magnet on the 'keelson' strake on the centerline of the hull forward of the intersection of the stub portion of the keel to see if you have steel knockouts in the area - - if you find a clear spot, try temporarily mounting there, as the transducer will be forward of the keel and you will get readings (esp. in shallow water) that will coincide with 'real time' depths - ahead of the keel/board, This location is also out of the way of the convenient storage bin area below the cockpit sole near the companionway FWIW.
My speed transducer is mounted thru the hull about 6 to 7+ inches ahead of the keel stub on the C/L and I had to drill thru steel -it ate almost 3 good Lennox bi-metal hole saws!! Check first and see if you can get a reading.
Our older boats have the ballast spread along the keelson area fore and aft from my experiences with #316 and the older (steel ballast) models. Lead ballasted boats 'probably' have less ballast in the keelson strake? Jerry can chime in here....
I never ran aground til PaintBoy was sailing the boat at Havasu one year - - been 'bumping' once or twice a year ever since - funny how that goes!?! {;>)
Have fun, Go Sailing, GO
In a message dated 4/6/2017 1:26:44 P.M. US Mountain Standard Time, rkgraves@gmail.com writes:
Hi Henry, On my '88 M17 there is a cavity at the aft end of the keel trunk. I placed my depth sounder transducer there and submerged it in a few inches of water. Works well.
On Thu, Apr 6, 2017 at 9:43 AM, Henry Rodriguez <heinzir@gmail.com> wrote:
I know this has been discussed before but I can't seem to find the references. Where is the best place to mount an interior "shoot thru the hull" depth sounder transducer on an older M17? Pictures and/or measurements would be appreciated. Thanks!
-- Henry https://picasaweb.google.com/heinzir
-- Henry https://picasaweb.google.com/heinzir
Henry, for temporary attachment of the transducer, Silly Putty works very well. In fact I used it for a couple years before finally epoxying it in place. On Fri, Apr 7, 2017 at 7:46 AM, Henry Rodriguez <heinzir@gmail.com> wrote:
Thanks all,
I made the mistake of epoxying the transducer in place under the v-berth while the boat was on the hard last fall. I wasn't able to test it until the WICR in Arizona in February. Of course it didn't work at all. I think I didn't get it forward far enough. I didn't know about any steel plate in the area.
Fortunately I have been able to pop the transducer off without damage. Apparently the 'ducer's slick surface did not give the epoxy a very strong grip. I will be launching the boat for the season in a week or two and will be able to experiment with locations. I'm thinking centerline, under the v-berth, as far forward as I can reach from the forwardmost access opening. I'm not adverse to cutting a new access hatch farther forward, if anyone thinks this is adviseable. The transducer, by the way, is specifically designed for "shoot-thru" applicatioons.
Henry
On Thu, Apr 6, 2017 at 6:43 PM, GILASAILR--- via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
Henry,
Check with a magnet on the 'keelson' strake on the centerline of the hull forward of the intersection of the stub portion of the keel to see if you have steel knockouts in the area - - if you find a clear spot, try temporarily mounting there, as the transducer will be forward of the keel and you will get readings (esp. in shallow water) that will coincide with 'real time' depths - ahead of the keel/board, This location is also out of the way of the convenient storage bin area below the cockpit sole near the companionway FWIW.
My speed transducer is mounted thru the hull about 6 to 7+ inches ahead of the keel stub on the C/L and I had to drill thru steel -it ate almost 3 good Lennox bi-metal hole saws!! Check first and see if you can get a reading.
Our older boats have the ballast spread along the keelson area fore and aft from my experiences with #316 and the older (steel ballast) models. Lead ballasted boats 'probably' have less ballast in the keelson strake? Jerry can chime in here....
I never ran aground til PaintBoy was sailing the boat at Havasu one year
- been 'bumping' once or twice a year ever since - funny how that goes!?! {;>)
Have fun, Go Sailing, GO
In a message dated 4/6/2017 1:26:44 P.M. US Mountain Standard Time, rkgraves@gmail.com writes:
Hi Henry, On my '88 M17 there is a cavity at the aft end of the keel trunk. I placed my depth sounder transducer there and submerged it in a few inches of water. Works well.
On Thu, Apr 6, 2017 at 9:43 AM, Henry Rodriguez <heinzir@gmail.com> wrote:
I know this has been discussed before but I can't seem to find the references. Where is the best place to mount an interior "shoot thru the hull" depth sounder transducer on an older M17? Pictures and/or measurements would be appreciated. Thanks!
-- Henry https://picasaweb.google.com/heinzir
-- Henry https://picasaweb.google.com/heinzir
My M17 ('74, steel ballast) came with a "fish finder" - the transducer was epoxied in place on centerline, far forward of stub keel, under v-berth - but not so far forward it wasn't reachable through the existing access hatches. Previous owners put it in, and said it worked. I never used it, pulled it out to get it out of the way for other work. Same as your experience, the transducer popped loose from the epoxy fairly easily. If I put it back I'll probably just put a drop or two of of super-glue to hold it, as it has a perfectly molded place to sit in the original epoxy it was mounted with. cheers, John S. On 04/07/2017 07:46 AM, Henry Rodriguez wrote:
Thanks all,
I made the mistake of epoxying the transducer in place under the v-berth while the boat was on the hard last fall. I wasn't able to test it until the WICR in Arizona in February. Of course it didn't work at all. I think I didn't get it forward far enough. I didn't know about any steel plate in the area.
Fortunately I have been able to pop the transducer off without damage. Apparently the 'ducer's slick surface did not give the epoxy a very strong grip. I will be launching the boat for the season in a week or two and will be able to experiment with locations. I'm thinking centerline, under the v-berth, as far forward as I can reach from the forwardmost access opening. I'm not adverse to cutting a new access hatch farther forward, if anyone thinks this is adviseable. The transducer, by the way, is specifically designed for "shoot-thru" applicatioons.
Henry
On Thu, Apr 6, 2017 at 6:43 PM, GILASAILR--- via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
Henry,
Check with a magnet on the 'keelson' strake on the centerline of the hull forward of the intersection of the stub portion of the keel to see if you have steel knockouts in the area - - if you find a clear spot, try temporarily mounting there, as the transducer will be forward of the keel and you will get readings (esp. in shallow water) that will coincide with 'real time' depths - ahead of the keel/board, This location is also out of the way of the convenient storage bin area below the cockpit sole near the companionway FWIW.
My speed transducer is mounted thru the hull about 6 to 7+ inches ahead of the keel stub on the C/L and I had to drill thru steel -it ate almost 3 good Lennox bi-metal hole saws!! Check first and see if you can get a reading.
Our older boats have the ballast spread along the keelson area fore and aft from my experiences with #316 and the older (steel ballast) models. Lead ballasted boats 'probably' have less ballast in the keelson strake? Jerry can chime in here....
I never ran aground til PaintBoy was sailing the boat at Havasu one year - - been 'bumping' once or twice a year ever since - funny how that goes!?! {;>)
Have fun, Go Sailing, GO
In a message dated 4/6/2017 1:26:44 P.M. US Mountain Standard Time, rkgraves@gmail.com writes:
Hi Henry, On my '88 M17 there is a cavity at the aft end of the keel trunk. I placed my depth sounder transducer there and submerged it in a few inches of water. Works well.
On Thu, Apr 6, 2017 at 9:43 AM, Henry Rodriguez <heinzir@gmail.com> wrote:
I know this has been discussed before but I can't seem to find the references. Where is the best place to mount an interior "shoot thru the hull" depth sounder transducer on an older M17? Pictures and/or measurements would be appreciated. Thanks!
-- Henry https://picasaweb.google.com/heinzir
-- John Schinnerer - M.A., Whole Systems Design -------------------------------------------- - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john@eco-living.net - 510.982.1334 http://eco-living.net http://sociocracyconsulting.com
I put mounted a transducer to shoot through the hull too. I mounted just forward of the bulkhead, about two strakes off center to avoid any conflicts with the keel. I made a puddle of silicone caulk and simply pressed it into place. That was about 15 years ago, and it has worked will ever since, and is still there. If you want to move or remove it, you simply pry it off. On Apr 7, 2017, at 12:45 PM, John Schinnerer wrote:
My M17 ('74, steel ballast) came with a "fish finder" - the transducer was epoxied in place on centerline, far forward of stub keel, under v-berth - but not so far forward it wasn't reachable through the existing access hatches. Previous owners put it in, and said it worked. I never used it, pulled it out to get it out of the way for other work. Same as your experience, the transducer popped loose from the epoxy fairly easily. If I put it back I'll probably just put a drop or two of of super-glue to hold it, as it has a perfectly molded place to sit in the original epoxy it was mounted with.
cheers, John S.
On 04/07/2017 07:46 AM, Henry Rodriguez wrote:
Thanks all,
I made the mistake of epoxying the transducer in place under the v-berth while the boat was on the hard last fall. I wasn't able to test it until the WICR in Arizona in February. Of course it didn't work at all. I think I didn't get it forward far enough. I didn't know about any steel plate in the area.
Fortunately I have been able to pop the transducer off without damage. Apparently the 'ducer's slick surface did not give the epoxy a very strong grip. I will be launching the boat for the season in a week or two and will be able to experiment with locations. I'm thinking centerline, under the v-berth, as far forward as I can reach from the forwardmost access opening. I'm not adverse to cutting a new access hatch farther forward, if anyone thinks this is adviseable. The transducer, by the way, is specifically designed for "shoot-thru" applicatioons.
Henry
On Thu, Apr 6, 2017 at 6:43 PM, GILASAILR--- via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
Henry,
Check with a magnet on the 'keelson' strake on the centerline of the hull forward of the intersection of the stub portion of the keel to see if you have steel knockouts in the area - - if you find a clear spot, try temporarily mounting there, as the transducer will be forward of the keel and you will get readings (esp. in shallow water) that will coincide with 'real time' depths - ahead of the keel/board, This location is also out of the way of the convenient storage bin area below the cockpit sole near the companionway FWIW.
My speed transducer is mounted thru the hull about 6 to 7+ inches ahead of the keel stub on the C/L and I had to drill thru steel -it ate almost 3 good Lennox bi-metal hole saws!! Check first and see if you can get a reading.
Our older boats have the ballast spread along the keelson area fore and aft from my experiences with #316 and the older (steel ballast) models. Lead ballasted boats 'probably' have less ballast in the keelson strake? Jerry can chime in here....
I never ran aground til PaintBoy was sailing the boat at Havasu one year - - been 'bumping' once or twice a year ever since - funny how that goes!?! {;>)
Have fun, Go Sailing, GO
In a message dated 4/6/2017 1:26:44 P.M. US Mountain Standard Time, rkgraves@gmail.com writes:
Hi Henry, On my '88 M17 there is a cavity at the aft end of the keel trunk. I placed my depth sounder transducer there and submerged it in a few inches of water. Works well.
On Thu, Apr 6, 2017 at 9:43 AM, Henry Rodriguez <heinzir@gmail.com> wrote:
I know this has been discussed before but I can't seem to find the references. Where is the best place to mount an interior "shoot thru the hull" depth sounder transducer on an older M17? Pictures and/or measurements would be appreciated. Thanks!
-- Henry https://picasaweb.google.com/heinzir
-- John Schinnerer - M.A., Whole Systems Design -------------------------------------------- - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john@eco-living.net - 510.982.1334 http://eco-living.net http://sociocracyconsulting.com
participants (5)
-
GILASAILR＠aol.com -
Henry Rodriguez -
Howard Audsley -
John Schinnerer -
Larry Yake