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Author Topic:   Where to mount LSS-2?

lanlubber posted 12-05-2013 04:31 PM ET (US)
I just got a Lowrance HDS-7 Gen 2 with the structure scan LSS-2. I'm trying to find a good place on my 1986 22' Outrage to mount the transducer. It needs to be level and have clear vision to port and starboard. Has anyone installed this on a classic whaler that can give me some location ideas that worked for them?
jimh posted 12-06-2013 08:46 AM ET (US)
Does your Boston Whaler OUTRAGE 22 have a single engine, twin engines, or a single engine with auxiliary?
lanlubber posted 12-06-2013 10:05 AM ET (US)
Just a single outboard, no kicker. I've looked and I might have to mount on the underside of the hull. However to do that I'd need a wedge of some sort to level it out port to starboard. I found wedges online for bow to stern leveling. I'm concerned mounting on the transom as the engine will interfere with the signal.
jimh posted 12-06-2013 10:53 AM ET (US)
I am sure you would want the LSS-2 transducer to be oriented so that it was aimed directly down. That is accomplished by the orientation of the mounting holes in the transom, not by some sort of wedge, as least as far as I can see.
With a single engine, you can probably mount the LSS-2 transducer in an off-center position, with the offset equal to at least the diameter of your propeller plus some additional offset. Let us say you have a 16-inch diameter propeller. This suggests at least an 8-inch offset. We will double that to 16-inches to give plenty of margin.
I would expect that Lowrance has very explicit instructions on how to mount the LSS-2 on a transom with regard to offset from center and from the engine. I would be guided by their advice. The OUTRAGE hull is not an extremely deep V-hull, and I don't think there will be too much trouble in finding a workable solution.
It may be prudent to anticipate that the optimum location won't be found on the first try. To avoid having to drill too many holes in the boat transom, a transducer mounting surface that was rather wide, say eight inches or more, might be a good idea. (I wish I had done that on my Boston Whaler 22-foot hull transom.)
I have been very impressed with the echo-sound images produced from the Lowrance side scan SONARs, and I look forward to seeing some of yours. Please keep us informed on how the side scan works for you on the Whaler hull.
acseatsri posted 12-11-2013 08:08 PM ET (US)
I have a Humminbird 1197 Sidescan transducer on Starboard side of the transon of my OUTRAGE 22. It doesn't do that well when looking toward the engine unless the engine is tilted out quite a bit. I've been reluctant to try moving it around because I don't like extra holes in the transom.
I like Jim's idea of the large mounting surface and am thinking of screwing a 1/2-inch or 3/4-inch x 2 x 12-inch Starboard strip along the bottom of the transom, since the array of available transducers for this Lowrance series seems to be 3 or 4.

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Author	Topic: Where to mount LSS-2?
lanlubber	posted 12-05-2013 04:31 PM ET (US) I just got a Lowrance HDS-7 Gen 2 with the structure scan LSS-2. I'm trying to find a good place on my 1986 22' Outrage to mount the transducer. It needs to be level and have clear vision to port and starboard. Has anyone installed this on a classic whaler that can give me some location ideas that worked for them?
jimh	posted 12-06-2013 08:46 AM ET (US) Does your Boston Whaler OUTRAGE 22 have a single engine, twin engines, or a single engine with auxiliary?
lanlubber	posted 12-06-2013 10:05 AM ET (US) Just a single outboard, no kicker. I've looked and I might have to mount on the underside of the hull. However to do that I'd need a wedge of some sort to level it out port to starboard. I found wedges online for bow to stern leveling. I'm concerned mounting on the transom as the engine will interfere with the signal.
jimh	posted 12-06-2013 10:53 AM ET (US) I am sure you would want the LSS-2 transducer to be oriented so that it was aimed directly down. That is accomplished by the orientation of the mounting holes in the transom, not by some sort of wedge, as least as far as I can see. With a single engine, you can probably mount the LSS-2 transducer in an off-center position, with the offset equal to at least the diameter of your propeller plus some additional offset. Let us say you have a 16-inch diameter propeller. This suggests at least an 8-inch offset. We will double that to 16-inches to give plenty of margin. I would expect that Lowrance has very explicit instructions on how to mount the LSS-2 on a transom with regard to offset from center and from the engine. I would be guided by their advice. The OUTRAGE hull is not an extremely deep V-hull, and I don't think there will be too much trouble in finding a workable solution. It may be prudent to anticipate that the optimum location won't be found on the first try. To avoid having to drill too many holes in the boat transom, a transducer mounting surface that was rather wide, say eight inches or more, might be a good idea. (I wish I had done that on my Boston Whaler 22-foot hull transom.) I have been very impressed with the echo-sound images produced from the Lowrance side scan SONARs, and I look forward to seeing some of yours. Please keep us informed on how the side scan works for you on the Whaler hull.
acseatsri	posted 12-11-2013 08:08 PM ET (US) I have a Humminbird 1197 Sidescan transducer on Starboard side of the transon of my OUTRAGE 22. It doesn't do that well when looking toward the engine unless the engine is tilted out quite a bit. I've been reluctant to try moving it around because I don't like extra holes in the transom. I like Jim's idea of the large mounting surface and am thinking of screwing a 1/2-inch or 3/4-inch x 2 x 12-inch Starboard strip along the bottom of the transom, since the array of available transducers for this Lowrance series seems to be 3 or 4.