Here is what I did to mount a trolling motor to my 12 foot Grumman vee. The TM is a 50 pound thrust Minn Kota powerdrive.
First of all, my boat has a handle up front, and we used that to our advantage. You can see said handle in this pic.
Now, we used some stock aluminum with an end view of this.
We find this aluminum very useful as a 5/16 bolt fits in the track, and can slide until you tighten it to make it adjustable.
Now, we cut the aluminum at the same angle as the bottom of the gunwale lip.
We ran a 5/16 (1/2 inch head) bolt down and used a nyloc nut.
The handle in the front of the boat, keeps the mount from sliding to the front. The widening vee of the boat keeps it from sliding back.
This rig is gonna have a few modifications in the future. Right now, the TM is not exactly level in the water. So, we are gonna space up the back, by having a piece of the same aluminum that goes above and below the gunwale, and has a cutout for the lip. See crude drawing.
First of all, my boat has a handle up front, and we used that to our advantage. You can see said handle in this pic.
Now, we used some stock aluminum with an end view of this.
We find this aluminum very useful as a 5/16 bolt fits in the track, and can slide until you tighten it to make it adjustable.
Now, we cut the aluminum at the same angle as the bottom of the gunwale lip.
We ran a 5/16 (1/2 inch head) bolt down and used a nyloc nut.
The handle in the front of the boat, keeps the mount from sliding to the front. The widening vee of the boat keeps it from sliding back.
This rig is gonna have a few modifications in the future. Right now, the TM is not exactly level in the water. So, we are gonna space up the back, by having a piece of the same aluminum that goes above and below the gunwale, and has a cutout for the lip. See crude drawing.