Francises87
10.05.2021 4:37:41
• A new propeller's hub and blades must be checked for sufficient lower unit and trim tab clearances before use.
See full version: Mercury 40hp, FourStroke Propellers
• A new propeller's hub and blades must be checked for sufficient lower unit and trim tab clearances before use.
• ** Disclaimer: Pitch estimates and propeller selections made by this prop finder are provided only as a general reference and may not be correct for specific boats under actual boating conditions. By using this prop finder, you agree that the Solas Science and Engineering Company, Ltd, its dealers and other host entities do not accept any liability and are not responsible for harm to persons or property, damages or costs caused by the installation, handling or use of an indicated propeller or hardware.
• Make sure all propeller hardware is installed correctly.
• It is very important to refer to your engine's Owners Manual for important safety precautions when installing a propeller.
Spitfire provides the best performance in the world of aluminum propellers – in fact, it’s 25 percent faster from 0 to 30 mph than Mercury’s best-selling Black Max propeller, and there’s no penalty in top speed. here
Spitfire was designed from the ground up to be the best-handling aluminum propeller on the market. Spitfire features an extra cup design coupled with a straight trailing edge – similar to cleaver propellers used on race boats. Together they hold the water even in the tightest maneuvers.
In addition to the standard Spitfire, there are also three propellers in the line designed specifically for the unique demands of pontoon boats. The Spitfire Pontoon models – considered the best pontoon propeller in the Mercury lineup – feature extra holding and lift to take pontoon boats to a new level of performance.
140 HP (15 Tooth Spline) 1978 - 1979
115 HP (15 Tooth Spline) 1978 & Newer [links]
150 HP, Mercury (15 Tooth Splines, 4-1/4 Gearcase)1995 & Newer
BF 115 HP (15 Tooth Spline) 1998 - 2010
80 HP, Model 800, 2 & 4-Cyl. (15 Tooth Spline) Thru 1977 [links]
BF 130 HP (15 Tooth Spline) 1998 - 2004
The 13 is the diameter of the prop, as in 13". [links]
I'm getting old..what does 13 x 26 mean? I'm sure it's a 13 pitch but is the '26' a blade square inch of surface or what?
I guess only your tachometer knows for sure! ha!
The advise on getting a tach and checking your RPMS is spot on, you need to know for sure what RPMs you're turning before you can go much further. here
The 26 is the pitch of the prop, sort of like the pitch on screw threads. In other words, theoretically, the prop would move forward 26 inches in one revolution. Of course the theoretical part doesn't take into account the slippage that occurs as it goes through the water but you get the idea. more
It's just my opinion so take it for what it's worth but that sounds like way too big a prop for a 40hp motor. For comparison, I have a 14 1/2" X 24 on my 150. more
Before you start, we would like to point out that these calculators are based on empirical data.
They are not intended to perform complex cavitation or efficiency calculations.
The results provide "best size" propeller dimensions based on your input data.
There will always be a number of propeller size combinations that will work on your vessel, finding the best one is the trick.
These calculators will help guide you to determine various combinations of power, gear ratio and propeller size for your vessel.
Due to the nature of these calculators, Victoria Propeller Ltd. will not accept any liability, financial or otherwise, for the calculations or results provided. [links]