The older or newer ATFs?
Loyalhanna has a set of plans available,
http://www.taubmansonline.com/LHDPOWHATAN.htm
I would verify whether you get frame/hull sections with that.
Someone else posted that "The Scale Shipyard makes ATF hulls
http://scaleshipyard.com/Catalog%20P...html#WHU-A%207
[8D]
I have built a hull similar to the older ATF, for the ASR-7 USS Florikan.
The plans I used came from
http://floatingdrydock.com/