FAQ

What size motor for inflatable boat?

What kind of motor can I put on an inflatable boat?

When it comes to motors for inflatable boats, you can go either electric or petrol. And the electric motors for inflatable boats further involve 2 different types, including electric outboards and trolling motors.

Can I use a long shaft outboard on an inflatable boat?

A shaft length that is too long runs the risk of hitting submerged objects such as rocks or logs and potentially hitting the bottom. In addition, the motor will experience less top-end performance and more drag. However, a long shaft length works perfectly fine.

How much HP do I need for my dinghy?

To find an adequate horsepower motor for your small boat or dinghy, determine the mid-range, which is halfway between 2.5 hp and the maximum horsepower listed on the capacity plate. For example, if your boat is rated for a maximum of 20 hp, your mid-range horsepower would be 11.25 horsepower.

How do I know what size motor for my boat?

The rule of thumb is based on weight alone, and says you should have between 40 and 25 pounds of weight for each horsepower. For example, a 5,000-pound boat could have an engine with between 125 and 200 horsepower.

How much thrust do I need for an inflatable boat?

A general rule for determining the correct amount of thrust is adding 5 pounds of thrust for every 200 pounds of weight. It is recommended that you add your entire boat weight with the max load capacity of the boat for assurance of getting enough power. Example: 1,000lb boat with an 800lb max weight capacity.

How do I choose an outboard motor for an inflatable boat?

There are two main types of outboard motors for inflatables: gas and electric. … Regardless of what type of outboard motor you choose, you need to consider the following factors:

  1. Manufacturer limits.
  2. Motor power-to-weight ratio.
  3. Fuel efficiency.
  4. Crew size.
  5. Boat use.

What inflatable boats do Navy Seals use?

The Zodiac Milpro Futura Commando 470 or in short FC470 Combat Rubber Raiding Craft (CRRC), also known as the "Combat Rubber Reconnaissance Craft," is a specially fabricated rubber inflatable boat often used by the U.S. Navy, U.S. Marine Corps, the U.S. Army, and others.

What happens if you run a long shaft motor on a short transom?

It will will *run* fine, but it can cause bad handling. Also trim position settings will have a greater effect. No harm to try it, carefully, and see how it goes. The only other downside I can think of is a setup like that will cause you to need deeper water to run in.

Can you put a trolling motor on an inflatable boat?

Trolling Motors, electric outboard motors, and gas outboard motors all can be used on our Inflatable Dinghies.

How big of a boat will a 9.9 push?

To answer the question posted "Best size aluminum boat for 9.9hp 2-stroke?" A 12ft would provide the best performance with a 9.9. If you want more boat space then a 14ft would be better but would perform best with a larger motor.

Is 5hp outboard enough?

A 5hp outboard motor is typically powerful enough to get a 10 foot (3 meter) aluminum fishing boat up on a plane. If the boat is loaded down with equipment, or is carrying more than one person, there may not be enough power to plane out, which can cause a rougher ride and worse fuel economy.

What happens if you put to big of a motor on a boat?

If one were to put a larger than rated motor on the boat there would be pressure and stresses applied that may be over the acceptable range for the boat and serious damage could occur.

How much horsepower does a 15ft boat need?

Outboard motor size for your sailboat
Boat lengthBoat weightMotor horsepower
27 feet (8.2 m)7,000 pounds (3,175 kg)13 HP
28 feet (8.5 m)8,000 pounds (3,629 kg)15 HP
30 feet (9 m)10,000 pounds (4,536 kg)18 HP

How fast does a 10 HP boat motor go?

Note: Many factors can affect the real-world performance of the 10 HP outboard motor, including the boat type, load, weather, battery type and capacity. That’s to say, with one single charge, you can go over 40 miles at 5 mph speed.

Is 55lb thrust enough?

On a vessel that large, you’re definitely looking at putting an investment into a 55lb thrust motor at minimum. Going up from there is a good idea if you’re going to be out on saltwater or you’re planning on moving against a current, because the bigger the motor the more it will push.

How fast will a 30 lb thrust trolling motor go?

It is true that the 30 lb, 40 lb, and 55 lb thrust trolling motors all top out at 5 miles per hour, but you will need the larger-sized motor when you have a larger boat. If you don’t, your boat will not be able to hit anywhere near the maximum speed.

How fast will a 2.5 hp boat motor go?

5.4 mph

Tohatsu 2.5 Two-Stroke ($630; www.tohatsu.com) power: 2.5 hp weight: 26 pounds top speed: 5.4 mph noise at full throttle: 84 dB-A.

How fast can a 25 hp outboard go?

A 25hp Pontoon boat will not be very fast, with an expected maximum speed of between 5 and 10 mph. Most commercially accessible pontoon boats tend to average between 18 and 25 mph, although there are a few very quick production boats on the marketplace, plus some altered ones that have recently set world records.

How much horsepower does a 16 foot boat need?

To achieve maximum efficiency, you’ll have to give it 50 to 300 horsepower. There’s a range of the required power as you take into consideration the size and usage. An aluminum boat that is 16 feet long needs to have a 60 horsepower motor. Once equipped, it can have a speed of 25 to 30 miles per hour.

Are inflatable boats worth it?

Many people wonder if inflatable boats are worth purchasing. After all, they seem like they could pop easily. … Are Inflatable Boats Worth It?

Pros of Inflatable BoatsCons of Inflatable Boats
Have a modern, sporty lookOffer fewer amenities
Stable on the waterCan be damaged by fish hooks
Will not scratch paint on a larger boat

Can you go to Ocean with inflatable boat?

Inflatable boats are to get in to from the water. Unlike a hard rowboat, which can be easily tipped over when trying to re-board from the water, a swimmer has no trouble climbing into an inflatable boat.

Why does Coast Guard use inflatable boats?

Military and law enforcement use rigid inflatable boats because they have the power to get the job done. Some lightweight vessels require motors that are less powerful, but RIBs are designed to support more horsepower, making them the first choice of marine professionals like the Navy Seals and towing companies.

How do I know if I need a short shaft or long shaft outboard?

To do so, you will want to measure at the exact center of the transom from the very top to the very bottom. If it measures 15" or with in a inch of that you will need a short shaft outboard. If it measures anywhere from 17" to around 22", then your going to want to go with a long shaft motor.

What is the difference between a long and short shaft outboard motor?

Short vs. Generally, short shaft outboards are 15 inches, long shaft outboards are 20 inches, and extra-long outboards are 25 inches. Since the length of the shaft of your outboard is associated with the size boat, smaller engines will generally have shorter shafts.

How fast does a 12V trolling motor go?

5 mph

Higher thrust 12V trolling motors are designed for bigger heavier boats with larger payloads. The maximum speed of a trolling motor is 5 mph regardless of how many pounds of thrust.

Is 30 lbs thrust enough?

Boat weight is key when determining how much thrust you need. General rule of thumb: you need at least 2 lbs. of thrust for every 100 lbs. of fully-loaded boat weight (people and gear included).

How fast does a 40lb thrust trolling motor go?

about 4mph

The motor is designed for trolling, so the top speed of this motor is about 4mph, but depends on your boat shape, weight, water, wind, and other factors.

How fast will a 4.5 hp outboard go?

It will push your boat at 3.5. to 5 mph on a calm day. Don’t expect it to push your boat into a wind.

How fast will a 3.5 hp boat motor go?

Question: How Fast will a 3.5HP Outboard Motor Go? Answer: A 3.5HP electric outboard motor can push a 12-foot boat with a load of 331 pounds at the most, with a speed of 5.6 MPH. It can sufficiently push forward a 10-foot tender and it can work for a day sailer as an auxiliary power for up to 3,307 pounds.

How fast does a 1.5 hp boat motor go?

engine speed:8000rpm/min.

How fast will a 9.9 Yamaha outboard go?

Answer: Yamaha 9.9 HP features a top speed of around 20 MPH.

Is 9.9 hp enough?

9.9 is fine for 2 people for the most part. It wont be a speedster, but will plane the boat easily with 2 people and a light load. When you add a third person is when you will wish you had the 25.

How fast will a 8 hp outboard go?

(6) 1436 G3 with 8hp merc tops out 16 to 18 mph. Alll flat-bottom jon boat runs skinny everywhere… canals, creeks, ponds, backlish water. Marshes and lagoons.

How fast is a 4hp outboard motor?

With the throttle all forward and with the waves pushing the stern, the boat planes and reaches a speed of 12 knots. At this speed, I note with some surprise that the engine, even at full power, is little noisy.

How fast will a 2hp outboard go?

A 2 hp will certainly move your boat at hull speed, which will be about 4 or 5 mph. And a 2 hp is really easy to carry and mount because it is so lightweight.

How much gas does a 5hp outboard use?

MODEL SPECIFICATIONS (continued): Maximum output: 5HP (3.68 KW) Maximum operation range: 4500-5500 rpm. Fuel Consumption at W.O.T: 1.7 L/Hr.

Is it illegal to put a bigger motor on a boat than its rated for?

Can I use a bigger motor on my boat than what it’s rated for? It is not a violation of Coast Guard regulations to install or use an engine larger than specified on the capacity label, but there may be state regulations prohibiting it, and restrictions from your own insurance company regarding this.

Can you exceed the recommended HP on a boat?

The maximum horsepower capacity marked on a boat must not exceed the horsepower capacity determined by the computation method discussed in paragraph (a) of this section, or for certain qualifying boats, the performance test method discussed in paragraph (b) of this section.

What size motor do I need for a 17 foot boat?

Typically, you need at least a 20 horsepower outboard motor for a 17-foot boat. However, some boats have smaller motors, such as the 7 to 12 hp range.

What is the max hp for a 14 foot aluminum boat?

14 foot Jon Boats average a maximum horsepower of 15-20hp but some will fall outside of that range based on the specific boat.

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