1. What kind of
hardware do I need to run ShipmoPC ?
ShipmoPC will run on any system configured to run Microsoft
WINDOWSTM 9x, and WINDOWS NT (v.4.0 Service Pack 2 or greater) and
The recommended minimum hardware configuration to run ShipmoPC is:
1. Pentium 200
MHZ Procesor with 32 MB of RAM
2. Microsoft or Equivalent Mouse
3. Minimum 10 MB Disk Storage
2. Does ShipmoPC
require the use of a "dongle" security device ?
Our software does use hardware protection. ShipmoPC and other
selected Sable Software products use a hardware lock that permits
greater flexibility including the leasing of our software. We have
found that a hardware lock is more convienent and easy to use for
most users than a software lock.
For what types of ships is ShipmoPC valid ?
ShipmoPC can be used for monohull ships of all sizes. Because
the program is based on linear strip theory, the accuracy of motions
predictions will tend to decrease for ships having a length-to-beam
ratio less than four (4). ShipmoPC has been validated against a
large number of ships ranging from coastal defence vessels to cargo
ships as well as barges, icebreakers and naval ships.
4. Is the
program valid for low and/or zero forward speeds ?
Yes, ShipmoPC motions predictions are valid for Froude numbers ranging
from 0 to 0.35. For Fr > 0.35, predictions are expected to be
5. Is the program based on strip theory
or 3D diffraction ?
ShipmoPC is a strip theory-based, frequency domain seakeeping
code capable of computing the six degree-of-freedom motions of a
monohull with forward speeds in regular as well as irregular seas
of arbitrary headings.
6. How is
the ship hull defined ?
ShipmoPC permits the user to define the hull in one of two ways;
by defining the hull offsets or by defining the sectional area curve.
If the former method is selected, the user can view the shape of
each station (from keel to deck edge) as the offset points are entered
In the latter case, once the hull sectional areas are defined, ShipmoPC
generates offsets using either Lewis Forms or M.I.T. Forms. The
locations of the stations are also graphically indexed using a hull
Can I produce Polar Plots of my results?
ShipmoPC can generate speed-referenced polar plots of any of the
motion response parameters. The program also produces formatted
text output, and X-Y plots of results.
Is it possible to model the influence of bilge keels, roll fins
and passive roll stabilization ?
ShipmoPC permits the user to specify any combination of the
following appendages: bilge keels, skegs, fin stabilizers, anti-rolling
tanks (controlled passive or purely passive), propeller shaft brackets
and rudders. The user may also specify the use of an autopilot for
use with rudder roll stabilization. All of these features are accounted
for in the prediction of motions.
9. Does ShipmoPC
use Lewis Forms or Close-Fit Method? Is it possible to specify some
Lewis and some Close-Fit sections ?
ShipmoPC allows the user to choose either the Frank Close-Fit
Method or the Lewis Forms (aka. conformal mapping) Method to determine
the hydrodynamic properties of the hull. . We do not offer the option
to specify a mix of Boundary Element and Lewis Forms methods. Earlier
versions of ShipmoPC offered the Frank Close-Fit method. Version
3.x replaces this method with the Boundary Element method.
How is the wave data defined?
data can be defined using standard Wave Spectra, such as Bretschneider,
JONSWAP, six-parameter, or ten-parameter spectra. Alternatively,
the user can specify an external file defining the wave spectrum.
Can I produce response predictions for local areas away
from the C.G.?
ShipmoPC calculates motions, speed, and accelerations for local
positions, including off-centerline points. The program also will
predict frequencies of deck wetness, keel emergence, and slamming.
Finally, the program will produce habitability indices such as motion-induced
What are the differences between ShipmoPC v2.x and ShipmoPC
version of ShipmoPC has a number of changes from version 2.x. The
new version uses the most recent version (version 7) of the DREA
program SHIPMO. This calculation engine has a number of changes
from the older versions. The Frank Close-fit method of computation
has been replaced by the Boundary Element method, and loads at designated
longitudinal locations can now be calculated. Older ShipmoPC version
2.x files can still be used with the new version.
ShipmoPC come with any documentation ?
Yes, ShipmoPC is packaged with a comprehensive User Manual.
kind of printers does ShipmoPC support ?
ShipmoPC prints using the standard WINDOWS printer drivers.
there special prices for certified educational institutions ?
Yes, we offer a special price schedule for educational institutions.
The discount is 50%.
We purchased a former version of ShipmoPC. What about upgrading
We offer a special price schedule for past purchasers of ShipmoPC.
Consult our price list for the applicable upgrade cost.
What about training?
our experience that with the guidance of the user manual, the directions
in the program interface are comprehensive enough that a new user
can operate the program with relative ease. Training sessions for
user groups can be organized by special arrangement.
Can input data from previous versions be converted and/or imported into the new version?
Yes, input data from previous versions is compatible with upgrade versions of ShipmoPC.
Is a demo disk available ?
Yes, contact us to receive a demo of ShipmoPC at no charge, or download a demo version from this website