speed boat design

[tonipu]

any sugestion about design

 

[tonipu]

thi is the plan

 

[tonipu]

This is other version, any sugestion about design speed 25 to 28 kts
lenght on water line 10meter

 

[tonipu]

if somebody can help we get similar result in max speed savitsky planing prediction

weight 6000kg

 

[tonipu]

twin inboard engine 370ks 2800rpm reduction 1.75

 

[Mr Efficiency]

What you have there are renderings, rather than drawings that define the shape. There appears to be a sudden change in shape about 40% of length back from the bow, what is the reasoning behind that ?

 

[tonipu]

you meen in firs model?

 

[tonipu]

Hi there is no particular reason, we design a top and boat, and then put two types of planing boton,

 

[tonipu]

also i hope to reduce boat broching with keeping strait litl bit to the bow

 

[bajansailor]

Tonipu, it would be useful if you could provide some more information.
Do you have a lines plan for this vessel?
Do you intend to build it for yourself, or maybe somebody else?
What does your Statement of Requirements say about what it has to be able to accomplish? Such as cruising range, number of passengers on board, what your average sea conditions are like.....?
You mention "twin inboard engine 370ks 2800rpm reduction 1.75"
Is each engine capable of producing 370 kw, or 370 hp, or should this be 37 knots, or........?
Are they petrol or diesel? Shaft drive, or outdrives or water jets? Or outboard motors even?
Even if each engine is 370 hp, that is still quite a lot for 10 m. LWL and 6 tonnes displacement.
And if each engine is 370 kw, then you should be able to do more than 25 - 28 knots (or is this a gentle cruise speed?).

 

[tonipu]

it is 370hp
diesel iveco nef370 it is shaft direct drive
it will transport 12pasenger
it will be build in aluminium in my friend shipyard
gearbox zf220a 1.75

 

[tonipu]

i would like to cruise at 25 to 28 kts and have lot of power in reserve, and not to use so much power of the engine

 

[tonipu]

prop that i calculated and speed

 

[tonipu]

average sea conditions are in my adriatic sea calm , but i would like to operete to sea state 4 in emergency

 

[tonipu]

and i select this plum bow design because is stylish, but this good loking sell my excursions