Sure... but what can you
really do for ME?
Here's some some of the Design Stuff
begin with a preliminary design. Here is the most frequent scenario.
A potential client calls expressing interest. They may not know
whether they really want a custom design, but they do know that they
have been unsuccessful finding a boat that meets their needs.
Generally it is not because they are looking for something weird or
unusual. The number of design variables, however, can equal
thousands of refinements where only a dozen or so production yachts
Usually they come in with bits and pieces of 2 or
6 or 10 boats that they like. Sometimes one of my own designs has
sparked their interest. The next step is trying to pull their list
of "musts", "likes", and "it would be nice to's" into a workable
concept. That's preliminary design. It generally includes the
development of a profile and various arrangement drawings. Often a
rough hull lines is done to assist in that development.
It is is a back and forth process between the
designer, and the client. After all I'm not designing the boat for
me. I'm designing it for the owner. We generally charge a flat fee
for preliminaries, though some clients have preferred an hourly rate
to assure the maximum flexibility.
Cost Estimate Package:
the dream become reality? This step is somewhat optional. The cost
of custom design is not trivial. As such many owners want to have
some assurance that their dream can be built within the budget
A second phase of development can be initiated.
Here the goal is to develop a limited amount of information that can
give a boat yard (or several boat yards) a glimpse of what you're
trying to accomplish. Many boat yards will, with such input, develop
a "ball park" estimate of costs.
While these numbers can provide a
reasonable bench mark for estimating construction costs they should
be analyzed with caution. A prudent builder will generally be
cautious with the number they provide since so many variables are
undefined. Builders of lesser integrity may "throw out" numbers
simply to lure you in and therefore should be looked at in that
The whole Enchilada - Complete Design:
through all of the specifics. Can you get the boat you want in the
size you want? Can you meet the accommodation requirements, the
machinery necessities, the speeds demanded or the niceties hoped
After sorting out these questions if you choose to
proceed, the next step is developing a complete design package. The
full design package generally includes between 20 and 30 drawing
sheets but could include many more depending upon the client's
requirements and the boat yard's experience. The exact list of
drawings and materials varies somewhat from boat to boat, but always
includes extensive construction drawings, machinery drawings, and
The complete design, however, is not just a
function of the drawings created. In addition a vast amount of
engineering calculations are done for every project. These include
lengthy structural calculations, stability calculations, performance
prediction studies, and an extensive weight and trim analysis. All
of these elements provide the backbone upon which the drawings
The goal is not simply a pretty picture. The goal
is a design that works.
the work that we do on our own designs, we also do studies (most
commonly structural or stability) for other design firms and for
builders. These most often involve, but are not limited to boats
that are seeking USCG certification to operate as small passenger
vessels. We also work with other design offices including some who
are more oriented to the design of large ships. That work has
certainly broadened our own expertise, as well as the tool box that
we can bring to bear on projects of any size.
Within the last few years CNa was tapped by
Cummins Power Systems, Inc. to help them provide the engineering
support for a series of 49 foot buoy layers (BUSLs) which now
operate all over the country as part of the US Coast Guard's own
fleet. We have also assisted in the repower of the UA Army's fleet
of Bridge Erection Boats (BEB's) many of which are now serving in
our hull designs have been drawn in 3D for at least 15 years, I am
now getting more involved in drawing other structures in 3D. It can
be a time consuming prospect and therefore should be used judiciously. The truth is there are many levels of work that can be done from basic layout to photo-realistic.
3d design however is an increasingly valuable tool for helping a client to visualize the boat in more clarity. It also is removes a lot of the guess work that traditionally had to be figured out at even greater expense on the boat yard floor. In addition it can help to provide the advertising muscle to move the project along before the first boat is constructed.
We are now generating both Interior and exterior renderings that help to make the project real. Not only do we use this tool for our own work, we have also provided the service to a number of other firms including Kadey Krogen and others.
Our efforts in this area are ever
emerging. Stay tuned for more images or call / email for more information.