Mystery Yacht

Hmm.... just found a clearer pic of the exact same boat on Flickr: http://www.flickr.com/photos/xdjio/528756386/in/pool-osanpo/ Definitely looks like a hydro-foil. If that water wasn't so murky I'm sure your picture would show the foils.

I've Googled "Nevka Hydrofoil" without much luck... Nevka is the name of a river apparently, so turns up pretty often.

So far I've got these:
http://de.scientificcommons.org/18392533 (no pics)
http://www.kommersant.com/p495206/r_1/Georgia_Bursts_the_Banks/ (mentions the Abkhazian Navy has 12 Nevka hydrofoils)
http://www.foils.org/hysport.htm (down near the bottom it mentions "nevka", built late 60s - early 70s maybe, 35 ft 11 in long)

We have (er... had) one of our own ya' know: Bras d'Or

It's currently sitting here: http://www.mmq.qc.ca/a_propos_en.html I've not yet had a chance to visit.

The type in your first picture was used extensively as a ferry service in the Greek islands during the '70's. However, they did have a habit of breaking down and had to be towed to port by local fishing boats.

What is this....?

Is it displaying a diamond day shape? Certainly looks military.

My guess would be Stephens, but thats only a guess. She's a handsome craft.

It sure doesn't resemble any Chris Craft I've ever seen.
I would guess '50s era?

The bow looks a bit like a Mathews, but I don't think they made anything that big...

I would guess research. The day shapes on the mast designate her as "Restricted In Maneuverability Due To The Nature Of Her Work".

Here on the Eastern Shore of Maryland, equipment that looks like that is planting crops.

Mmmm,...

..., sea grass to promote (Asian) oyster beds by chance?

"Officials in Maryland and Virginia are poised to make a decision about whether to introduce the Asian (Suminoe oysters from Asia) Oyster to the Chesapeake Bay. The Eastern Oyster, a native species is endangered due to disease and over harvesting. Officials say that the Asian Oyster won’t get the same diseases and that they will boost the harvest. "​

Had'em - so big, kinda meaty, so,.., so, foreign. Yikes!
Coming to a restaurant near you:
http://www.dnr.state.md.us/dnrnews/infocus/oysters.asp
Cheers!
Eric
(betterthancherrystoneclamsthatzforsure)