D9

I've allways wondered what the D9 was and found a picture of in fremantle harbour before it sank in 1962


Posts: 318

Date Joined: 13/10/10

 That's cool, I've got a

Tue, 2020-09-01 18:17

 That's cool, I've got a sidescan image I got earlier in the year, seeing a photo of the dredge makes the image I've got make more sense

sunshine's picture

Posts: 2150

Date Joined: 03/03/09

Actually sank twice

Tue, 2020-09-01 19:29

And was arrested by a local marine assessor Gerry Woodcock who was required to nail the arrest warrant to the mast. But it didn't actually have a mast so he had to tape it on.   the second sinking was very suspect ! 

Posts: 539

Date Joined: 28/11/16

Geez that’s a decent size

Tue, 2020-09-01 20:03

Geez that’s a decent size cheers 

Posts: 675

Date Joined: 21/05/12

 30x10m

Wed, 2020-09-02 12:34
little johnny's picture

Posts: 4294

Date Joined: 04/12/11

Sunshine wasn’t one

Tue, 2020-09-01 20:59

Of them investigated . They found bungs out . ( insurance job ?) pretty sure d9 was responsible for sucking up all ballast from ships( limestone) and scattering it in middle of sound ( hence the name gravel patch). Could be wrong

Posts: 331

Date Joined: 29/04/18

 I was using the  satellite

Wed, 2020-09-02 06:07

 I was using the  satellite setting on my maps on me phone  the other day having a look at the sound and yeah you can see in the middle real clear that the spread of rock on the bottom  is in a almost like pattern formation ,like it was put there , looks cool might be what you were talking about johnny 

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 Happy dayz 

Posts: 90

Date Joined: 27/07/16

I'd actually forgotten about

Wed, 2020-09-02 08:10

I'd actually forgotten about the gravel patches, I now remember being told about them about 30 years ago and they were the place to go for pinkies.

little johnny's picture

Posts: 4294

Date Joined: 04/12/11

When ships dumped

Wed, 2020-09-02 10:33

Ballast it use to form big lumps ( pinnys) of limestone. D9 use to come along suck them up and scatter them in middle of sound ( what I was told) true or not unsure. The bubbles out front off alcoa . Use to be fresh water coming from underground fresh hitting salt water use to cause bubbles. Didn’t happen all the time . Once again only what I was taught. One of the old timers who I fished with when I was young fished it for many years . Always caught pinks on spot . Some days it use to fizz like mad apparently ? Never seen it fizz who knows ?. I suppose all industry now have recovery bores shoreline. This could have stopped flow of fresh water entering the sound ?

Posts: 1091

Date Joined: 05/05/06

Ive seen it bubble around

Wed, 2020-09-02 10:50

Ive seen it bubble around there somewhere, we didnt know what was going on. Just assumed it was an outlet or something.

sunshine's picture

Posts: 2150

Date Joined: 03/03/09

There are at least three aquifers that flow into the Sound

Wed, 2020-09-02 15:21

Really odd coming up to them whilst diving as the fresh distorts light due to different water density.   the sand in those areas actually moves like bubbling  

sunshine's picture

Posts: 2150

Date Joined: 03/03/09

Spot on

Tue, 2020-09-01 21:32

And yes the sea cocks were "mysteriously " open ........ 

Posts: 331

Date Joined: 29/04/18

 Thanks for sharing that mate

Wed, 2020-09-02 06:01

 Thanks for sharing that mate i always  thought the d9 was a bulldozer that had come off a ship ,you  learn something new every day 

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 Happy dayz