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Old 11-06-2015, 08:21   #1
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Some Recent Thermal Images from Surveys

Hi everyone. I was going through some of my thermal images from past surveys and found a few I thought you would all like to see and to show you how well this technology works for trouble shooting hulls, boat systems, and verifying that damage does or does not exist. I took these images during several surveys of power and sailing vessels with a "Flir" brand "E50" infrared thermal imaging camera. Here are a few:



This is a thermal image of a powerboat above. Using heat from the inside of the cabin (causing thermal conduction) I was able to see the fiberglass laminates and the deck frame work to look for suspected damage.



This is what core replacement look like in the deck of a sailboat (the darker rectangular shape). The new core was a PVC type core surrounded by the existing original Balsa wood core deck. It was unnoticeable on the bow deck until I turned the thermal imaging camera on.



This is a loose keel during the bottom inspection. This was a bolt on type keel on a 1981 Irwin. The keel bolts were loose when inspected from the inside of the main salon.



This is a thermal image of a large fuel tank as seen through the aluminum of the hull. Notice the transverse frames as well.



This is moisture / wood deterioration behind a bulkhead on a Bertram Sportfish in the aft main salon area near the window.

To most this technology is unknown. I also advise that anyone using the thermal imaging camera to scan your vessel or vessel's engine be at least a level one certified thermographer. There is a science to it. Shadows and reflective objects can be mistaken for anomalies. The images also need to be properly tuned based on the environmental conditions at the time the thermal images are taken to have the ability to identify actual anomalies. If not properly tuned, the anomalies can hide within the image as some anomalies may only be a few degrees in difference in temperature.
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Old 11-06-2015, 08:52   #2
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Re: Some Recent Thermal Images from Surveys

Impressive images. Quite a useful technology.


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Old 11-06-2015, 09:03   #3
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Re: Some Recent Thermal Images from Surveys

Excellent use of the IR technology. Thanks for sharing. I have a similar product made by Seek, but haven't found it as useful as I initially thought.
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Old 11-06-2015, 09:06   #4
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Re: Some Recent Thermal Images from Surveys

Very informative, thank you for sharing.
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Old 11-06-2015, 09:22   #5
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Re: Some Recent Thermal Images from Surveys

Do you have any connections with people around North Carolina that can render images of that caliber?

I'm involved in a refastening project on a wood hull that has been plywood sheathed, and we are interested in finding someone with this skillset to locate frames without doing as much demolition as conventional means would require.

Thanks,

Zach
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Old 11-06-2015, 10:01   #6
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Re: Some Recent Thermal Images from Surveys

Very nice! Thanks for your contribution to the forum.
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Old 11-06-2015, 10:15   #7
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Re: Some Recent Thermal Images from Surveys

I see that this works on aluminum boats. How about steel or galvanized steel?
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Old 11-06-2015, 10:17   #8
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Re: Some Recent Thermal Images from Surveys

John-
Have you found the thermal camera to be of any value in looking for water-logged rudders in sailboats?
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Old 11-06-2015, 10:59   #9
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Re: Some Recent Thermal Images from Surveys

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John-
Have you found the thermal camera to be of any value in looking for water-logged rudders in sailboats?
Yes. of course.
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Old 11-06-2015, 11:00   #10
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Re: Some Recent Thermal Images from Surveys

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I see that this works on aluminum boats. How about steel or galvanized steel?
Yes, works just as well. Heat (thermal radiation) can not escape itself.
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Old 11-06-2015, 11:12   #11
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Re: Some Recent Thermal Images from Surveys

Thank you for posting.. Very cool..
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Old 11-06-2015, 11:17   #12
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Re: Some Recent Thermal Images from Surveys

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Originally Posted by Zach View Post
Do you have any connections with people around North Carolina that can render images of that caliber?

I'm involved in a refastening project on a wood hull that has been plywood sheathed, and we are interested in finding someone with this skillset to locate frames without doing as much demolition as conventional means would require.

Thanks,

Zach
I do not know anyone in that neck of the woods. There are marine surveyors that use thermal imaging, but some are not certified or trained properly to use the cameras. Be sure you verify their certification and ask to see copies of their previous work. IR is a great way to locate them precisely however. Give me a call on this or send me an email.
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Old 11-06-2015, 11:20   #13
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Re: Some Recent Thermal Images from Surveys

What would be a typical ballpark figure to get one of these IR surveys on a 35-40ft boat?
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Old 11-06-2015, 13:29   #14
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Re: Some Recent Thermal Images from Surveys

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What would be a typical ballpark figure to get one of these IR surveys on a 35-40ft boat?
I just make thermal imaging part of most of my surveys. It only helps me do a better job. I do not charge extra, but if it is just thermal imaging work with no survey, my rate is typically $95.00 an hour.
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Old 11-06-2015, 19:55   #15
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Re: Some Recent Thermal Images from Surveys

Suenos Azules,

Thank you for posting those pics. I'd only heard the words before, didn't know what you'd actually get.

Ann
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