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USS Ruff MSC(O)-54
Coastal Mine Sweeper (Old)
Formerly USS YMS-327 and USS Ruff AMS-54
Installed 26 Nov 2006. Latest Update 11 Aug 2018.
New or revised information is in bold.
For a history of the USS Ruff, see the Ruff excerpt from the
Dictionary of Anerican Naval Fighting Ships
Click on images to see larger versions and other details.
YMS-327 location near Okinawa on 04 May 1945
USS Ruff Recollections - Jun 1960-Nov 1961
Installed on 07 Jul 2018. Latest Update, 21 Jul 2018.
When I reported for duty aboard USS Ruff, at the Naval Reserve Training Center
at Everett Washington, Ruff was undergoing a refitting at the Lake Union Drydock
in Seattle. (Rumor control had it that 13th Naval District personnel were using
Ruff for anti-submarine warfare drills.)
Until Ruff was released from Lake Union our skeleton crew commuted daily between
Everett and Seattle. I was the ship's regular navy electronics technician.
Once we got our ship properly installed at Everett we participated in underway reserve
training exercises one weekend each month, remaining overnight in various Puget
Sound sea ports.
Each summer the ship sailed to Long Beach Naval Station (California) for a week of
intensive mine sweeper training and evaluations.
Squawking "EMERGENCY" on IFF
On our first return trip from Long Beach (summer 1961) we were driving over and under waves.
Several in our crew were "feeding the fish" and one or two seamen were
trying to find some guy named "O'Rourke."
At about 0900 I got drenched by a portside gunwhale-jumping wave.
Rather than digging out a fresh set of dungarees I decided to dry out in the chart
house where our electronics equipments would serve as space heaters.
Afer a while I realized that I more heat was needed.
There was one electronics system that we had not been using. I turned it on as well. It was
our new radar associated Identifcation Friend or Foe (IFF) transponder system.
About a half hour later our ship received a message from 13th Naval District (in Seattle)
which said, in essence, "Continental Air Defense Command informs us that they have a
destroyer type craft near the mouth of the Columbia River squawking emergency on IFF."
13th Naval District wanted to know, "Is that you?"
Best I could tell, it couldn't be us because when I trained on IFF repair three years earler
(in 1958) we were told that only airplanes could squawk emergency and that you had to
push a special detent-type button to activate it. We weren't an airplane and we didn't have
Unbeknownst to me, in 1960, IFF signaling architecture apparently underwent an upgrade.
Looking way back on the issue, I now realize that Air Defense Command didn't have
a problem with the idea that a ship could squawk emergency. I didn't know what
four-digit code served as an emergency indicator. I think I had set our transponder
response code to either 0000 or 7777. If it was 7777, then the code may have had the final
two digits zeroed internally, changing it to 7700, which nowadays IS the emergency code.
At this point I exercised the system's ON/OFF switch.
Our skipper grilled me on whether we could be the squawker. "I don't think so." (Based
on the airplane only scenario.) "You don't think so?!" . . . "No Sir, It's not us."
Our reply to 13th Naval District was "Negative."
Perhaps it should have been "Oops!"
About an hour before sunset a Navy PBY patrol plane overflew us. We and the aircrew somehow didn't
establish radio comms but the airplane had a morse code signal light in a pod slung under its port
The light repeatedly flashed "I F F I N T."
We took that to mean IFF Interogative? We gave them thumbs down "negatives."
After two or three passes they departed our area, seemingly satisfied.
In July of 2018 I used Wikipedia, Google, and Google Earth to identify and locate
radar sites that could have tagged the offending ship. My best candidate so far is
Mount Hebo Air Force Station
in northwestern Oregon. According to Wikipedia that site was in use from 1957 to 1979. Ruff was likely in
its ocean surface coverage area when I turned on my auxilliary heater.
Map of Oregon showing location of Mount Hebo AFS
Ruff Photos in Chronological Order
Everett Harbor - Everett, WN - 1964
San Francisco, CA - 1964
The "Galley" - Main Deck - 1964
Long Beach, CA? - 1965?
Puget Sound, WN - 1966
17 Nov 2014 Comments from Phillip Hays
I saw your list of ship's crew for the USS Ruff MSCO-54.
Officer In Charge of Ruff Decommissioning
I was her last Officer in Charge in 1969. I was a boot Ensign on the USS
Cape MSI-2 [Mine Sweeper Inshore] for nine months when the Navy decided
to get rid of the MSIs. The Mine Squadron had to do something with me so
they assigned me as Officer in Charge for decommissioning the USS Ruff.
The engines had been removed before I came aboard so my function was
just to sign paperwork. I didn't know anything about decommissioning a
ship, and everyone else knew that too. So I told the Chief in charge
that I would stay out of his way and let him do his job. If he needed me
for anything he could find me sunning on the top of the pilot house.
I think I was there for about a month and then they sent me to the USS
Oklahoma City CLG-5 in Japan.
There were about a dozen fellows working on the Ruff for
decommissioning. I don't know if any of them were assigned to the Ruff
or if they were part of a shipyard crew. The ship was decommissioned
somewhere on the north side of Terminal Island in the Los Angeles Inner
Phillip Hays, October-November 1969, Ensign, Officer in Charge