Must agree with
Buccaneer here

.....if you were to also bring
motor current draw into the total electrical equation, the T12 motor will essentially lower the overall requirement/cost and provide inherent reliability with increased running time duration over a 555 Series motor
The T12 motor is also well suited to a larger slower vessel you propose....
Newer design, smaller, quality engineered cost effective, higher speed, lower torque etc, etc
brushless motors are an excellent choice for many applications, but not a Mountfleet
Sir LancelotNo need for a 16 page technical evaluation analysis between the 3 different style motors.....just think about the old Chalk & Cheese adage.....
Derek