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Using a tape measure measure the length of the trolling motor shaft. Adding 18 to 24 inches to this total then rounding to the nearest foot tells you the necessary shaft length.
To determine the right length for your boat measure the distance from where the shaft is mounted on the deck or the transom to the water.
How to measure trolling motor shaft. Adhere to the following steps to measure your motors shaft length. Place the trolling motor on the ground. Determine the motor shafts length.
Use a tape measure and determine the motor shafts length by measuring from the base of the head down to the propeller housing in inches. How Can You Measure Trolling Motor Shaft Length. Measuring the shaft length is not that difficult.
The first thing you have to do is put the motor on the ground and find out its shaft length. You can do that by using a tape measure and do the measurements starting from the base of the head and going down to the propeller housing. How To Correctly Measure Bow Mount Shaft Length Freshwater.
Bow to Water Line 20 Minimum Required Shaft Length. Bow to Water Line 25 Minimum Required Shaft Length Transom Mount Shaft Length. Shaft length on transom mount motors is less critical than on bow mount motors but is still important to double-check.
Measure down from the mounting surface of the transom or bow to the water level. Add 5 to waterline measurement for fishing in rough water. Add 12 to waterline measurement for steering a hand control motor while standing.
Use this measurement and the tables below to find the appropriate trolling motor shaft. Using a tape measure measure the length of the trolling motor shaft. But depending on where you measureit could only be a 48.
For MotorGuide or 20. 24062020 To get the correct length if you have a transom trolling motor the general rule is that the top part. The standard shaft length is 42.
To determine the right length for your boat measure the distance from where the shaft is mounted on the deck or the transom to the water. Then add 16 for MotorGuide or 20 for Minn Kota and select the next closest measurement. Click to see full answer.
The first thing you have to do is put the motor on the ground and find out its shaft length. It includes the panels at the end of the ship that stays out of the water during operation. How to Measure Trolling Motor Shaft Length.
Using a tape measure measure the length of the trolling motor shaft. How is trolling motor shaft length measured. It is the length of the shaft itself Mike.
In other words if you took the troll motor apart and laid the shaft on a bench and measured ityoud have it. Trolling motors are often passed over because of this 3 knot barrier better propeller could offer 5-6 knot which could be OK. There are enough power 500-2000W in the trolling motors for small displacement boats.
2 kW electric or 1 kW at shaft per 1000 kg is sufficient to achieve the hull speed in calm using suitable propeller. How to measure length of trolling motor shaft. Minnkota specsThe shaft length is from the base of the control box or head down to the collar on the motor or lower unit.
To find the shaft length requirements for your boat. Measure from deck where the motor is to be mounted down to the water line of the boat when at rest. 12-06-2013 0652 AM.
You measured the motor the right way. You measure from the top of the transom to the cavitation plate. I would say you have a long shaft 20.
They come in short shaft which is 15 then the long shaft which is 20 then you have the extra long shaft which is 25. Most of the older runabouts in this part of the country came with. Using a tape measure measure the length of the trolling motor shaft.
Note this in inches. Identify the transom of your boat which is at the back. It includes the panels at the end of the ship that stays out of the water during operation.
Use a dipstick to measure down on a vertical plane from the top center of the transom to the hull of the boat. To measure the shaft length for transom motors measure the distance from the mounting location or spot down to the waterline and you can choose it according to the below measurements. If the distance between the transom mount to the waterline is 0 to 10 choose a 30-inch shaft length.
If the distance between the transom mount to the. To determine the shaft length a trolling motor needs to be to fit the various sizes of boats measure the distance from the surface of the water to where the trolling motor will be mounted. Adding 18 to 24 inches to this total then rounding to the nearest foot tells you the necessary shaft length.
To measure your outboard motor shaft length measure from the bottom of the mounting bracket where it rests on the transom to the top of the cavitation plate this is the horizontal surface of the lower unit immediately above the propeller. Later in the article is an image that shows you exactly where to measure. Trolling Motor Shaft Length for 20SFNP.
Start date Feb 26 2018. Feb 26 2018 1 4. Messages 2 Reaction score 0.
Thinking about buying a Minn Kota PowerDrive 54 Pontoon Trolling Motor for my 20SFNP. Is the 48 shaft long enough. Mar 5 2018 2 Steve21slx Well-Known Member.
Shaft Length for Engine Mount Motors. Engine mount trolling motors are fixed to the cavitation plate of outboard motors. Before you buy the trolling motor you should check if the plate is deep enough under the waterline.
There should be a minimum of 13 inches of submersion for the trolling motor. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. A trolling motor shaft should be significantly longer than the distance between your boats bowmounting point and the waterline.
In freshwater add at least 20 in 508 cm to this measurement. N saltwater add at least 25 in 635cm to this measurement. In order to perform a trolling motor correctly the motor compartment must be submerged 10-12 below the water surface.
This measurement will be useful later. You still have to start measuring at the top of the transom but you only have to step to the waterline.