RE: http://tech.military.com/equipment/view/152549/sh-60b-s...wk.html?eq_id=152549

I thought the SeaHawk had a dipping sonar(dome). However it was not mentioned in the article.

You're thinking of the SH-60F Oceanhawk http://tech.military.com/equipment/view/155034/sh-60f-oceanhawk.html

It's funny, I flew the SH-60F for 10 years and never heard it called the Ocean Hawk. All the Navy H-60 versions (B,F and H) were just called the Sea Hawk. The MH-60S is the first airframe I'm aware of that has a new name.

Nope. Everyone referred to them as "Seahawk" as a slang carryover from the first version of the Navy H-60, the SH-60B.

SH-60B = Seahawk
SH-60F = Oceanhawk
HH-60H = Rescuehawk
MH-60S = Knighthawk
SH-60R = Seahawk (full circle!)