I use an Alumacraft all welded v-bow John boat 15’6” length . I run a 25hp merc on it. I added a bit of height to the transom to get the motor up to the premium height clearing the boats bottom line.
Trimmed up and empty my gps says it runs 27 mph. When up to speed I can run thru 11 inches of water. Slower of course the rear drags a little lower. I figure 14” water needed at low speed.
I hope this helps.
Osky
* mine is a prop motor.
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