predict propeller

[heru yudha]

Any body can help me, how to predict and choose propeller for high speed craft. plz completely with the method if possible???:confused:

[RANCHI OTTO]

Which kind of propulsion do you have plant?
Piercing propeller or shaft prop.?
Which speed?

[kjell]

Any body can help me, how to predict and choose propeller for high speed craft. plz completely with the method if possible???:confused:

Give me the following data and I will tell you the propeller you need.

Engine HP ?
Engine RPM ?
GearBox Ratio ?
Boat Speed ?

[heru yudha]

I have 2100 rpm,twin engine by each 800 hp,gear box 2.06 and I hope get 23 knot at service speed.
thank before

[heru yudha]

I use shaft prop by 23 knot at service speed,2x 800hp power,2100 rpm.Lwl:27.3m,Bwl:5.1m,Draft :1.1m

[kjell]

I use shaft prop by 23 knot at service speed,2x 800hp power,2100 rpm.Lwl:27.3m,Bwl:5.1m,Draft :1.1m

This is my calculation using your information.

[heru yudha]

ok thank a lot Mr.Kjell

[heru yudha]

Hi..everybody can help me plz...
1)plz tell me how I can get tutorial to construct boat by laminating method??
2)how I can get open water curve of propeller for design in high speed craft??
....thank before.....

[heru yudha]

Hi..everybody can help me plz...
1)plz tell me how I can get tutorial to construct boat by laminating method??
2)how I can get open water curve of propeller for design in high speed craft and using high speed engine??
....thank before.....