I spent a couple hours today mocking up the transducer mounting location and would like some feedback on what I have so far. It's the Airmar TM54 (Furuno 165T-TM54) and I'm kind of limited on location because of the bracket. Can't mount anywhere under the bracket because there is not enough room for the transducer to kick up if it hit anything.
In addition to the kick-up issue, other locations closer to centerline have disturbance from the raw water pickup (port), thru-hull (center) and ground plate (starboard).
Boat is a Parker 2530 with F150s on an Armstrong bracket. The least worst remaining location is just right (starboard) of the bracket. The hull has strakes at about 18" and 32" out from centerline on each side. The transducer will end up 6" from the inner strake and 4" from the outer strake.
It's looking like with one shim (3 degree) to angle the mounting bracket upward, the bottom face of the transducer is as close to parallel with the hull as possible. It's probably slightly down at the trailing end (like 0.5 to 1 degree). When the boat is moving it will probably end up about 3-4 degrees angled down at the trailing end. I'm thinking this is a better option then with no shim which will put the trailing end angled down 3-4 degrees as it sits in the garage and 5-7 degrees when running.
Any advice or comments?
In addition to the kick-up issue, other locations closer to centerline have disturbance from the raw water pickup (port), thru-hull (center) and ground plate (starboard).
Boat is a Parker 2530 with F150s on an Armstrong bracket. The least worst remaining location is just right (starboard) of the bracket. The hull has strakes at about 18" and 32" out from centerline on each side. The transducer will end up 6" from the inner strake and 4" from the outer strake.
It's looking like with one shim (3 degree) to angle the mounting bracket upward, the bottom face of the transducer is as close to parallel with the hull as possible. It's probably slightly down at the trailing end (like 0.5 to 1 degree). When the boat is moving it will probably end up about 3-4 degrees angled down at the trailing end. I'm thinking this is a better option then with no shim which will put the trailing end angled down 3-4 degrees as it sits in the garage and 5-7 degrees when running.
Any advice or comments?