Originally Posted by codprawn
How many variables can you have on a deep V hull of a certain length and beam?
Surely it is a case of someone trying to reinvent the wheel?
I would have thought that one reason for so many similar hulls is down to modern CAD programs - in a similar way so many modern cars look the same as they have been styled in the wind tunnel.
I disagree with you pretty strongly on this!
There are many variables and they need to be integrated into what is trying to be achieved with a particular design. At the same time engines, structures, tubes etc etc evolve - so this all has to be taken into account with the design process.
So no it is not trying to re-invent the wheel. Many RIBs may look similar but there can be fairly significant changes that are not obvious to all.
With regards to CAD programs they do not design the craft - it may make it easier to draw a basic hull - but if you are really designing you will be in control of the data going in and the data coming out. There is no simple way that a program that designs your boat - unless you are using existing data from a previous or stock design. The designer is still in control of interpretating all data to make sure that the craft produced is suitable for its requirements.
It is a very complex path - unless you are off course copying (re-inventing the wheel).