What happens if you put a bigger motor on a boat than its rated for?
If a higher than rated horsepower is installed, reinforcing the transom and hull structure may also be required. It used to be true that if you went with a higher horsepower motor you were also adding weight to the transom that could affect the balance of the boat.
Is it worth it to repower a boat?
Observations. Repowering an outboard-powered boat can be a viable option for an owner who either can’t afford a new boat or who simply loves the boat he already has but wants new power. New motors will breathe new life into the boat and often improve performance and fuel efficiency.
How big of a motor can you put on a boat?
The rule of thumb guidelines based on weight alone would be between 40 and 25 pounds of weight per 1 hp. In other words a 5,000 lb boat fully loaded could have a 125 to 200 hp engine. The wide range, based on weight alone, is due to the variety in design and handling characteristics of a given boat.
How much horsepower can I put on 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 fast will a 9.9 outboard go?
around 20 mph
How fast will a 5 hp outboard go?
We have a 5hp 2 stroke on our 9′ tinnie and get 7-8 knots GPS in smooth water flat out – enough to get us noticeably over the Qld. limit of 6 knots. 5 is about the maximum rated power for the boat. It probably depends what you mean by plane.
How fast will a 4hp outboard go?
7 miles per hour
How fast will a 10 hp outboard go?
1.5 M.p.h.
How fast will a 2hp outboard go?
4 mph
How fast will a 2.5 outboard go?
5.4 mph
How fast will a 3hp outboard go?
9 km/h
How many pounds of thrust does a 2.5 hp outboard motor have?
55 lbs
How fast will a 55 lb thrust trolling motor go?
5 miles per hour
How much thrust does a 6 hp outboard motor have?
Thus for a propeller designed for 3 kn speed (typical electric system) the thrust is ~50 lbs/HP, but for a 6 hp outboard designed for 6 kn it would be less than 30 lbs/HP.
How many HP is a pound of thrust?
So at 550 feet per second (375mph), each pound of thrust is one horsepower. At 825 feet per second (560mph), each pound of thrust is 1.5 horsepower.
How much thrust do I need for a 16 foot boat?
Trolling Motor Thrust Guide
| Boat Weight (lbs) | 1,000 | 2,000 |
|---|---|---|
| Boat Length | 14-16′ | 18′ |
| Minimum Thrust | 55 | 70 |
| Performance Thrust* | 50 | 80 |
| Motor Voltage | 12v | 24v |
How many lbs of thrust do I need for my boat?
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). If things like wind or current are major factors where you fish, you’ll want a little extra thrust.