i was trying to come up with a way to mount my transduser to the boat without drilling holes below the water line and keep it from gettig hit by stumps and the boat being draged on shore. after a few months of thinking and working on it here and there as ideas and time come up this is waht i came up with. i used 1"x1 1/2" aluminum thick wall square tubing with 2 pieces of scrap too make a hinge and the retaining clips off of a tv antena turned backwards as a clip to hold it in place ans give if i hit someting. it holds the transducer about an 1 1/2" below the botom of the boat and totaly protects it from damage. it may seem like over kill but it beats buying a new transducer and i only have about 80 cents in screws invested. i am playing around with a throtle return spring to hold it up out of the way after its tripped.