not sure how wide your Jon boat is but I would go with a 3.5HP or 5HP outboard no bigger
The right size for an electric outboard motor for a 10 foot fishing boat seems to be 4 - 5 - 6 hp, 8 - 9.9 hp or 15 - 20hp. It simply depends on what kind of fishing boat it is.
There are no standard electric OUTBOARD motors made for a boat that large. While submarines and sightseeing boats may use electric motors, they are not outboards, and are designed for the hull shape and size. The largest electric outboard I have seen is 3 hp- suitable for a 14 ft boat.
The propeller size on an outboard engine, is dependant on the application. The size of the boat, and more particularly the weight it will carry, determines the propeller size.
Depends if it fiberglass or Aluminium. For Fiberglass you would be looking at around 50hp-60hp and and Aluminium would be between 30hp and 40hp.
It depends a lot on the size of the boat. If it say, a 12 foot boat, probably about 7 or 8 knots (about 10 mph). On a bigger boat slower. As was said these small engines are used mainly for dinghies and for fishing. Answer: I have a 8 foot fiberglass dinghy with a 4 Hp outboard. My GPS says 11km/h under full throttle on a calm lake.
Speed is dependant on a number of factors. Most importantly the size, type and weight of the boat that it is on and the number of people on board. A 50 HP outboard will push a small aluminum fishing boat a lot fast than it will a 20 ft fiberglass boat. I have a 50 HP 2 stroke that will push a 16 foot aluminum boat 35 MPH.
It depends of the size of the boat. A guy with a 15 foot skiff with an outboard could be a commercial fishing boat is he is engaged in commercial fishing. On the other end there are very large factory processing ships that would have very large powerful engines.
i have a 21ft sunbrid walk around boat with a 175 outboard motor i would like to know what size propeller should i use
The 90 hp Johnson outboard is not shipped with a propeller installed. The correct size is determined, and installed, when the engine is rigged on the boat.
30 gal
5-10 hp gas motor should be more than adequate. An electric motor would alos work well, especially on small lakes or sloughs without significant current.
This can vary depending on the width and weight of your boat. Check with the manufacturer or dealer to see what size or model they recomend.