How to determine what size trolling motor i need

Then divide the required torque by the gear ratio to find the newly required torque. You can protect your motor and improve its performance by picking the right pitch. For details on specific motors you can browse our top jon boat trolling motor recommendations. Determining the proper trolling motor shaft length is one of the key aspects of finding the right motor for your boat. We suggest selecting a trolling motor with at least 2 lbs. In fact two 55 pound thrust motors will not move you any faster than one 30 pound thrust motor.

Determining the proper trolling motor shaft length is one of the key aspects of finding the right motor for your boat.

Basically trolling motor is rated by pounds of thrust so one with 72 to 75 pounds of thrust is compared to 1 horsepower. While this is a good rule of thumb there are other things to consider when determining this length. If you want to achieve higher speeds you will need to invest in a 24-volt. Size is the next important thing you must consider about your trolling might. Therefore consider the above tips and you will choose the right size trolling motor. Of thrust 36 volts 3 batteries. Of thrust or less 12 volts 1 battery 68-80 lbs. For MotorGuide or 20. Of thrust for every 100 lbs. To determine the right length for your boat measure the distance from where the shaft is mounted on the deck or the transom to the water. Youll need 1 battery for every 12 volts in your trolling system.