Re: new trolling motor
In general you want to have as much thrust as possible for the times when you run into wind and current. The rule of thumb in choosing thrust is to take the total weight of the loaded boat and divide it by 70. For example, if your boat with people and gear weighs a total of 3500 lbs you will then divide that by 70. That means that ideally you should have a motor with at least 50 lbs. of thrust.
What's just as important is the shaft length. You need to measure the length from the waterline to the top of the bow or stern. You then ad 20 inches to that number and then round up to the NEXT longest shaft length.
If you get a Bow mounted motor that isn't long enough, then you are not going to be able to control the back end of the boat.