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Yeah, but only one operator flies comemrical C-130's here, so what are you going to do? Barging wasn't significantly cheaper, and was very constrained. The ocean-going barge only has a single sailing date a year that goes to the closest regional hub, and the Chukchi is extremely shallow, so...

And again, we won't. The whole purpose of this thread was not to indirectly give myself permission because someone on the internet said it would be ok. The purpose was to see if there was a rule of thumb in order not to waste money on hiring a NA just to discover the gain, if any, was minimal...

OK, lets try this again. We our interested in this boat because it was essentially spec'd and designed to carry out the same missions as we want to use the boat for. The only real difference is that we are a secular organization so will not be proselytizing. Furthermore, the original...

ugg, just accidently closed my browser and lost the all but done post I had spent over an hour on in order to answer your questions and give more insight into our thought process/reasoning. I will redo it this evening after work. In the meantime, here are links to the design's webpage and a...

Thanks, Don't worry Ad-Hoc, no home-grown modifications. This boat will essentially be run like a commercial vessel, and I cannot see any insurance company being willing to insure a hull with a major DIY hull modification. Nor could we as medical professional operate a vessel in good...

I am working with a medical charity that wants to field a long-ranged, mid-sized (100-150 tons displacement) disaster response boat. They have found an aluminum motor-sailer schooner project boat that is to the stage of having its hull assembled to the tack welded stage. Their thought process...

Bajan, I am not tracking on the buoyancy. Displacement is equal to volume multiplied by the density of water right? Main hull is 9365 and each ama is 3456 for a total of 16277 cubic feet. If I multiply that by the weight of 1 cubic foot of sea water I get 480 long tons of buoyancy versus...

IIRC. estimated draft was 3-4 feet. Boat is intended as a yacht with extra space for conducting train-the-trainer type medical mission work. The hab deck does span the full beam, but interior layout is designed to place heavy items directly over the hull/amas rather than on the spans...

the 125 long tons is a weight estimated for the entire boat based off published rules of thumb for cargo, furnishings, and crew/passengers as well as published gear weights and calculating the structural weight based off of hull and deck square footages as well as a pessimistic estimate of...

Thanks Ad Hoc Bajan: I'm actually looking at Aluminum, but Colvin's was recommended by Karsten (IIRC) since many of the same concepts apply. The biggest design I am playing with is a 125 long tonner whose main hull is 216 feet with a constant beam of 8 feet from stern to 144 feet forward...

Hello, this is my first post-here. Last year I was going insane in medical school (training to be a PA) and so began to try to self-teach myself the rudiments of naval architecture as a diversion. I quickly found that I liked exploring the fringes of design rather than the main stream...