tug boat offsets
I'm a student at the University of New Orleans, NAME, and was wondering if anyone knows where I can get offsets for a tug. I just need some numbers to put into RhinoCad so that I can get a basic design to follow for my design project.
There is an easier way if you just need a hullform model...
Lay a scan of stations (hit the library) as a BMP onto a rectangle and trace (polyline) the stations - rotate them 90 degrees - then with end onsnap on drop them onto the fairbody - loft thru them...
This is described at http://www.3drender.com/rhino/boathtml/index.htm ...
Free download these days...
Photo below should prove a challenge to model... - fantastic site - http://northstargallery.com/boneyard/boneyard11.htm ...
Lots of plans and profiles - no stations - http://www.ral.bc.ca/designs/designs.html - Robert Allen is just 'down the road' - he might send you some photocopies of stations if you tell him you are just modelling as a student ...
I am assuming you are talking about Rhino3D - if not - well...
You should look at the Model Resistance Data Sheets for 12 tugs, Data Sheets D-7, from the Society of Naval Architects and Marine Engineers. They cost $50 for non-members, and $25 for members. Good reason to join the society!) Your department library might even have them--they should. These should have lines plans of at least the basic model, and also the variations for the other 11 models.
Eric W. Sponberg
Sponberg Yacht Design Inc.
St. Augustine, Florida
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