Guess the usage?

Avalon Sea is an AHTS vessel of the sort I’ve not seen call in the sixth boro.  Any guesses on usage, age, and dimensions of the unit?

 

If it reminds you of the various semi-submersible vessels that’ve called here, great, because that’s what Boabarge 37 is.  It measures 499′ x 125′  with a draft of 30′.  She’s on long-term lease to the Irving Shipyard in Halifax.  Avalon Sea is one of seven vessels operating for Secunda Canada, self-described as “a harsh weather fleet vessels serving Canada’s offshore gas and oil projects.”   Avalon Sea measures in at 300’x 66′ and propelled by 15,500 hp.  To see how Irving Shipyard uses Boabarge 37, check this out.

Point Chebucto is based in the Strait of Canso, but out behind her are two transients:

Behind her are Bylgia, a Heerema tug measuring 236′ x 59′ with 202 tons bollard pull, and Maersk Mobiliser, launched in late fall 2018 and 311′ x 82′ and currently tending craneship Thialf out by Sable island.

 

Here Bylgia is hooking up to 400′ x 125′ cargo barge H-407.  For specifics on Heerema equipment, click here.

All photos thanks to Jack Ronalds.  As I’ve said before, if you want to see some of them right now, click here  for his Marine Traffic snaps and here for his general photos, not limited to maritime shots.  The connection between the Strait of Canso and NYC’s sixth boro was highlighted in this post from a few days ago.