Sorry to hear your modeling efforts are suppressed at the moment { I can identify} but I am more happy to see you stopping by and still checkin' us out.
Our good MATT, as you can see, is doing his usual bang-up job of investigatiing the subject and is apparently exercising efforts to coax whatever technical information the U.S. Navy officially has in this regard.
Now, to answer your question about my P-Series pontoon barge build, I must confess that I still do not possess at the moment the means with which to take and/or post photos.....I will try to fix this, but at the moment, I am still 'strapped'.
But, for the record, I have indeed already constructed 3 of the 6 pontoons of my 6 X 18 pontoon configuration in 1/35th scale.
AND, more importantly {for me}, I have done so with absolutely NO monetary investment whatsoever!.......... 
Enough of my rants and rambles........
Tread.
