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Posted: 8/9/2016 9:05:54 PM EDT
[#1]
Quote HistoryQuoted: Awesome thread. For some reason I've always been fascinated with shipwrecks ever since I was a little kid. |
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Posted: 8/9/2016 9:07:41 PM EDT
[#2]
Quote HistoryHudson River water landing? That's awfully shallow. |
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Posted: 8/9/2016 9:14:59 PM EDT
[#3]
Quote HistoryQuoted:
Hudson River water landing? That's awfully shallow. Quote HistoryQuoted:
Hudson River water landing? That's awfully shallow. Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. |
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Posted: 8/9/2016 9:18:31 PM EDT
[#4]
Civil War Ironclad USS Monitor, then...
...and now... 
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Posted: 8/9/2016 9:26:14 PM EDT
[#5]
Quote HistoryQuoted:
Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. Quote HistoryQuoted:
Quoted:
Hudson River water landing? That's awfully shallow. Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. L10-11 |
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Posted: 8/9/2016 9:29:47 PM EDT
[#6]
USS Utah, before the Pearl Harbor attack...
...and now... 
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Posted: 8/9/2016 9:31:38 PM EDT
[#7]
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Posted: 8/9/2016 9:35:33 PM EDT
[#8]
Quote HistoryQuoted:
USS Utah, before the Pearl Harbor attack... https://padresteve.files.wordpress.com/2010/12/utah-in-1935.jpg ...and now... http://www.intoceansys.co.uk/uploads/img4e609ec1ae006.jpg The before photo is earlier than her final configuration when she sank. They had 5"/25 mounts forward on turrets 1 and 2 and 5"/38 enclosed mounts aft on turrets 4 and 5. They also had I think one 1.1" mount, some 20mm mounts and 8 .50 caliber machine guns. |
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Posted: 8/9/2016 9:36:12 PM EDT
[#9]
I just started the Dirk Pitt series by Clive Cussler so this appeals to me.
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Posted: 8/9/2016 9:36:14 PM EDT
[#10]
HMHS Britannic, before...
...and after... 
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Posted: 8/9/2016 9:37:04 PM EDT
[#11]
Quote HistoryQuoted:
L10-11 Quote HistoryQuoted:
Quoted:
Quoted:
Hudson River water landing? That's awfully shallow. Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. L10-11 Judging by the lat and longitude, that's a Tupolev 154. Former private plane of the communist ruler of Bulgaria. Now an artificial reef in the Black Sea. |
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Posted: 8/9/2016 9:43:34 PM EDT
[#12]
Quote HistoryQuoted:
Judging by the lat and longitude, that's a Tupolev 154. Former private plane of the communist ruler of Bulgaria. Now an artificial reef in the Black Sea. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
Hudson River water landing? That's awfully shallow. Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. L10-11 Judging by the lat and longitude, that's a Tupolev 154. Former private plane of the communist ruler of Bulgaria. Now an artificial reef in the Black Sea. WINNER, WINNER, CHICKEN DINNER! 
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Posted: 8/9/2016 10:03:44 PM EDT
[#13]
...a Confederate blockade runner:
...presumed to be the Agnes E. Frye: 
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Posted: 8/9/2016 10:16:06 PM EDT
[#14]
Quote HistoryQuoted: Down and side imaging technology is awesome. It has really advanced in the past 10 years. Some of the new fishing graphs can produce amazing images, when properly set up. Most can be had for around 1k. https://farm9.staticflickr.com/8849/28802854821_8e0eaf233b_b.jpg I get distracted when looking for fish and find myself spending time checking out old bridges, cars, silos etc... On the bottom of the lake. Lots of images from "consumers" posted here |
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Posted: 8/9/2016 10:17:01 PM EDT
[#15]
I remember seeing images of something that looked like the Millenium Falcon years ago that had everyone freaked out. Pretty sure it was in the Baltic.
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Posted: 8/9/2016 10:28:19 PM EDT
[#16]
Quote HistoryQuoted:
Did you find my guns? 
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Posted: 8/9/2016 10:38:40 PM EDT
[#17]
Here's some of my images that I've shot at work:
http://www.bosargediving.com/our-services/sonar-services/ |
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Posted: 8/10/2016 3:14:28 AM EDT
[#18]
Quote HistoryQuoted:
Here's some of my images that I've shot at work: http://www.bosargediving.com/our-services/sonar-services/ Cool!!! |
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Posted: 8/10/2016 3:20:54 AM EDT
[#19]
DO24? |
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Posted: 8/10/2016 4:10:12 AM EDT
[#20]
Quote HistoryQuoted: Last one looks like buzz lightyear. |
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Posted: 8/10/2016 4:32:04 AM EDT
[#21]
Very cool. When I was a kid, I used to imagine how neat it would be if they could drain the ocean and you could just walk around and explore what was down there. This is almost as good.
Good post. 
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Posted: 8/10/2016 4:38:06 AM EDT
[#22]
I got to look at tons of sidescan when I was diving. It was....
Super boring because most of it looked like this.   |
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Posted: 8/10/2016 9:59:16 AM EDT
[#23]
Quote History |
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Posted: 8/10/2016 10:03:12 AM EDT
[#24]
Quote HistoryQuoted:
I got to look at tons of sidescan when I was diving. It was.... Super boring because most of it looked like this.
http://www.offshore-technology.com/contractor_images/11190/images/146831/large/rock-2.jpg That's what makes these images so interesting. Imagine, after seeing miles and miles of...
...you suddenly see this... 
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Posted: 8/10/2016 10:33:48 AM EDT
[#25]
Quote HistoryQuoted: Here's some of my images that I've shot at work: http://www.bosargediving.com/our-services/sonar-services/ |
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Posted: 8/10/2016 10:38:29 AM EDT
[#26]
pretty damn cool
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Posted: 8/10/2016 10:43:59 AM EDT
[#27]
Awesome thread
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Posted: 8/10/2016 10:44:54 AM EDT
[#28]
"Is that a U Boat"? [chico]"Thats a notta my boat" [/chico] |
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Posted: 8/10/2016 10:47:13 AM EDT
[#29]
Quote HistoryQuoted:
Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. Quote HistoryQuoted:
Quoted:
Hudson River water landing? That's awfully shallow. Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. Coordinates on the photo put it in the Black Sea off the coast of Bulgaria. ETA: Already noted above. |
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Posted: 8/10/2016 11:01:15 AM EDT
[#30]
Awesome pics and thread.
Surprised we still can't find the nuke we lost off of Georgia. |
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Posted: 8/10/2016 11:02:53 AM EDT
[#31]
Quote HistoryQuoted:
First pic: Ford Trimotor, or possibly a JU-52? Trimotor: https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQCC9y6FV_Z7Qs5Lr78__7q95n1O4n6n75DiDhCd5scbbCUAnHZ Ju-52: http://g02.a.alicdn.com/kf/HTB1luxCIVXXXXbUXVXXq6xXFXXXf/MD-010-WWII-German-JU-52-transport-aircraft-bombing.jpg Looks like the top view of a Do 24 to me...... https://en.wikipedia.org/wiki/Dornier_Do_24 |
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Posted: 8/10/2016 11:03:44 AM EDT
[#32]
Quote HistoryQuoted: Awesome pics and thread. Surprised we still can't find the nuke we lost off of Georgia.  I'm on it. |
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Posted: 8/10/2016 11:07:12 AM EDT
[#33]
Any more info on the bodies? That's surprisingly creepy especially the way the shadows are cast
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Posted: 8/10/2016 11:09:59 AM EDT
[#34]
I need to borrow that to find my lost guns.
Damn boating accident. 
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Posted: 8/10/2016 11:12:16 AM EDT
[#35]
Quote HistoryQuoted: Awesome pics and thread. Surprised we still can't find the nuke we lost off of Georgia. They are buried deep down under silt |
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Posted: 8/10/2016 11:16:50 AM EDT
[#36]
Quote HistoryQuoted:
http://www.geotech1.com/forums/attachment.php?attachmentid=13384&d=1285895680 "Is that a U Boat"? [chico]"Thats a notta my boat" [/chico] Not likely. U-boat would have a single surface mounted gun. Unless it somehow came off while sinking. |
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Posted: 8/10/2016 11:25:05 AM EDT
[#37]
This is so cool
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Posted: 8/10/2016 11:37:13 AM EDT
[#38]
Quote HistoryQuoted:
Why the shadow? (Not a composite image?) artifact of side scanning - the object blocks the scanner, hence the shadow |
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Posted: 8/10/2016 11:41:36 AM EDT
[#39]
Quote HistoryQuoted:
Without having to say it, a good number of people here will be able to identify THIS one... http://waittfoundation.org/wp-content/uploads/2015/06/MSN018A_BOW-SIDE4-R99m.jpg Ah yes. The SS Minnow. Finally! |
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Posted: 8/10/2016 11:43:14 AM EDT
[#40]
Quote HistoryQuoted: It's not 3d but it appears that way. Think of the sounds waves as a laser, it will bounce off the object back towards the transmitter. The sound will never reach where the "shadow" is so it registers as no response or "nothing there". Quote HistoryQuoted: Quoted: Quoted: Quoted: Why/how does it show shadows? It's not really a shadow, more of a blank area that is shown because the sonar waves can't penetrate the object. So is it a 3D recreation of the image? If the sonar source was casting the shadows, why don't the photos, or whatever they are, show the perspective that is casting the shadow? I'm not sure I'm writing this correctly, but it appears that the picture is from a different perspective than the sonar is pointed. It's not 3d but it appears that way. Think of the sounds waves as a laser, it will bounce off the object back towards the transmitter. The sound will never reach where the "shadow" is so it registers as no response or "nothing there". His point is it appears the image collector (or whatever it is called) is in a different location from the sonar source. (e.g. towed sonar, but image collector on bottom ship). If both were in the same position, it too shouldn't see the "shadow". |
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Posted: 8/10/2016 11:45:50 AM EDT
[#41]
Great thread, thanks OP
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Posted: 8/10/2016 11:50:08 AM EDT
[#42]
Quote HistoryQuoted: First pic: Ford Trimotor, or possibly a JU-52? Trimotor: https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQCC9y6FV_Z7Qs5Lr78__7q95n1O4n6n75DiDhCd5scbbCUAnHZ Ju-52: http://g02.a.alicdn.com/kf/HTB1luxCIVXXXXbUXVXXq6xXFXXXf/MD-010-WWII-German-JU-52-transport-aircraft-bombing.jpg |
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Posted: 8/10/2016 3:25:06 PM EDT
[#43]
Quote HistoryQuoted:
Me too. I love diving wrecks. Quote HistoryQuoted:
Quoted:
Awesome thread. For some reason I've always been fascinated with shipwrecks ever since I was a little kid. Same here
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Posted: 8/10/2016 3:31:46 PM EDT
[#45]
Quote HistoryQuoted: Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. Quote HistoryQuoted: Quoted: Hudson River water landing? That's awfully shallow. Doubtful. That looks like a 727: three-engined, T-tailed jet, or one similar to it. |
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Posted: 8/10/2016 3:40:52 PM EDT
[#46]
Quote HistoryQuoted: His point is it appears the image collector (or whatever it is called) is in a different location from the sonar source. (e.g. towed sonar, but image collector on bottom ship). If both were in the same position, it too shouldn't see the "shadow". Quote HistoryQuoted: Quoted: Quoted: Quoted: Quoted: Why/how does it show shadows? It's not really a shadow, more of a blank area that is shown because the sonar waves can't penetrate the object. So is it a 3D recreation of the image? If the sonar source was casting the shadows, why don't the photos, or whatever they are, show the perspective that is casting the shadow? I'm not sure I'm writing this correctly, but it appears that the picture is from a different perspective than the sonar is pointed. It's not 3d but it appears that way. Think of the sounds waves as a laser, it will bounce off the object back towards the transmitter. The sound will never reach where the "shadow" is so it registers as no response or "nothing there". His point is it appears the image collector (or whatever it is called) is in a different location from the sonar source. (e.g. towed sonar, but image collector on bottom ship). If both were in the same position, it too shouldn't see the "shadow". Side scan sonar works on distance to target with a highly directional component to the bounce back. So... a line near the water surface is the path of the unit attached to the boat. From that line, it's angle from horizontal and distance along each position on the line. When you get bounce back at 10 degrees down you might have 120 foot bounce back. At 10.001 degrees down you might have 123 foot bounce back. This is noted in the data. Then, when the image is created, those angles and distances are calculated out, and you get a "view from the top" picture of the bounce back intensity. It's this angle translation math that generates the shadow. The sending and receiving unit are pretty close together. It's that the resolution of the sonar is used to calculate an image from a different point of view. |
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Posted: 8/10/2016 3:42:06 PM EDT
[#47]
Cool!
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Posted: 8/10/2016 3:46:00 PM EDT
[#48]
Cool pictures. I've always thought it would be cool to be able to temporarily drain a body of water so you could walk the bottom and check everything out.
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Posted: 8/10/2016 3:55:55 PM EDT
[#49]
Quote HistoryQuoted: Cool pictures. I've always thought it would be cool to be able to temporarily drain a body of water so you could walk the bottom and check everything out. |
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Posted: 8/11/2016 8:03:12 PM EDT
[#50]
I've spent the past few nights looking at different images now
I had a unit mounted on my Jon boat that I would fish and hunt out of all up and down pool 14,15 and 16 on the Mississippi and have found some cool things on the bottom of the river. |
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