Good morning.
I ordered a 3 blade 40x27 propeller for a 57 footer wooden fishing boat which is under construction. I arrived at this selection based on the power of the engine which was 164Kw(220hp) @ 1800 rpm. I ordered this engine as well. But when I took delivery of the engine I realized that the hp and rpm is not what was advertised. This engine has hp of 163Kw (218hp) and rpm of 2200. When I complained to the supplier he was told to tell me to ship the engine back to them at my expense.
Since then I have been trying to figure out if the current propeller (40x27) would be efficient. I have used three online calculators to find the correct propeller size and they gave me, 35x25, 35x29 and 34.7x29.6.
Now the problem is, if I decide to keep this engine should I be concerned using the prop with this engine?
Nabb
I ordered a 3 blade 40x27 propeller for a 57 footer wooden fishing boat which is under construction. I arrived at this selection based on the power of the engine which was 164Kw(220hp) @ 1800 rpm. I ordered this engine as well. But when I took delivery of the engine I realized that the hp and rpm is not what was advertised. This engine has hp of 163Kw (218hp) and rpm of 2200. When I complained to the supplier he was told to tell me to ship the engine back to them at my expense.
Since then I have been trying to figure out if the current propeller (40x27) would be efficient. I have used three online calculators to find the correct propeller size and they gave me, 35x25, 35x29 and 34.7x29.6.
Now the problem is, if I decide to keep this engine should I be concerned using the prop with this engine?
Nabb