i have a 21ft sunbrid walk around boat with a 175 outboard motor i would like to know what size propeller should i use
For a 14-foot aluminum boat, an outboard motor in the range of 10 to 25 horsepower is generally recommended. The specific size can depend on the boat's weight, intended use, and the number of passengers. A 15-horsepower motor is often a good compromise for versatility and performance. Always check the manufacturer's specifications for the maximum recommended horsepower for your specific boat model.
it should probs have a motor beetween 70 and 115hp check the hp rating on your boat on the capacity plate
For a 1984 Stratos bass boat model 345, a suitable outboard motor would typically range from 25 to 40 horsepower. It's important to check the boat's capacity plate, if available, for specific recommendations. Additionally, consider the boat's weight, intended use, and local regulations when selecting the motor size to ensure optimal performance and safety on the water.
100 aph
not sure how wide your Jon boat is but I would go with a 3.5HP or 5HP outboard no bigger
I saw one today with a 115 and some on line with more than that.
It depends on the size craft it is pushing. A 5hp outboard should run fast enough to plane out say a 10 to 12ft. aluminum boat with one man aboard.
A 2 hp outboard motor can be suitable for a 12 ft fiberglass boat, especially for calm waters and low-speed cruising. However, its power may be limited for heavier loads or rough conditions. It's important to consider the boat's weight, intended use, and local regulations regarding motor size. For more demanding conditions or higher speeds, a slightly more powerful motor may be advisable.
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.
You will need the weight of your boat in lbs, the weight of the people & kit it is expevted to carry and then divide by 70. This will give you the thrust in lbs. For example a total weight of 2500lbs divided by 70 = 35.71, round this up to the nearest whole number is 36. Therefore a trolloing motor of 36lbs thrust is required. Bryan1324
175/150