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post #11 of 25 Old 12-23-2013
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Re: UAV Recon Possibility

I think that sounds like a fun idea, plus you could record some spectacular sailing footage from overhead.

This video was filmed from a similar UAV, just to give an indication of the capabilities. Watch it in 1080P if capable...

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post #12 of 25 Old 12-23-2013
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Re: UAV Recon Possibility

I thought we all had one of them as standard .... How do ya think I got this picture ??



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post #13 of 25 Old 12-23-2013
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Re: UAV Recon Possibility

"This video" appears as a blank white box here, under MSIE10. With no URL, no image properties displayed for it. Lots of linked videos do that, any idea why? What that link should look like as a URL?
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post #14 of 25 Old 12-26-2013 Thread Starter
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Re: UAV Recon Possibility

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Originally Posted by hellosailor View Post
A Parrot quadcopter, with a 1/2 ounce fishing weight and eight or ten feet of fishing line dangling beneath it, perhaps?
The "dipping sonar" approach I referred to above, would use the Hummingbird Smartcast RF25 with the transducer float hanging from a length of fishing line attached to the UAV's skids:


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post #15 of 25 Old 12-26-2013
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Re: UAV Recon Possibility

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Using an Unmanned Aerial Vehicle for forward reconnaissance of potentially difficult anchorages/passes may be becoming a possibility
These quadcopters are waterproof and can land in, and takeoff from water. Mount a GoPro camera and a wireless depthfinder on one:

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post #16 of 25 Old 12-26-2013
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Re: UAV Recon Possibility

I'm with sea breeze, search and rescue.
Remember the kids washed off the rocky shore in Spain? Deploy about five in all directions , have a better chance of at least spotting them before they succum, maybe have it deploy a floatation with mark.
Remember the Nina, she could still be out there. Deploy a few hundred. If we can buy them for toys, and "anchorage spotters" then we should be able to get it together to save some lives, eh?


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post #17 of 25 Old 12-26-2013
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Re: UAV Recon Possibility

HyLyte I'm all for the Hummingbird, but until you get the weight down to the same half-ounce as a fishing sinker...Remember, payload determines your speed, range, costs, and anything else about your drone. And the size of the yacht necessary to launch and recover it. :-)
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post #18 of 25 Old 12-27-2013
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Re: UAV Recon Possibility

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Seems to me these UAV's, particularly the longer-legged ones, would be ideal for searching for endangered missing persons. I mean, if they can look for, and actually attack people in other countries, why not have a couple for search and rescue?
And Frogwatch, Yves Gelinas did something similar, albeit without wireless....they called it film back then, aboard his boat (Jean du Sud) many, many years ago. He used a kite.
Of course, several of the highly advanced military drones in service over the last couple of decades are capable of such duty, and could be tasked to SAR. There have been cases of them being used for other purely civilian purposes, such as the Predator used by the California Air National Guard to assist with the Rim Fire in and around Yosemite just a few months ago.

However, the type of Radio Controlled (RC) Quadcopter in this thread has flight times measured in minutes, typically not much over 10 minutes. To extend flight times, you can use a higher capacity battery (measured in MAH, miliamp-hours), but there is a point at which the several curves of lift capacity, battery capacity, and total aircraft weight put a finite limit on flight time.

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post #19 of 25 Old 12-27-2013 Thread Starter
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Re: UAV Recon Possibility

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Of course, several of the highly advanced military drones in service over the last couple of decades are capable of such duty, and could be tasked to SAR. There have been cases of them being used for other purely civilian purposes, such as the Predator used by the California Air National Guard to assist with the Rim Fire in and around Yosemite just a few months ago.

However, the type of Radio Controlled (RC) Quadcopter in this thread has flight times measured in minutes, typically not much over 10 minutes. To extend flight times, you can use a higher capacity battery (measured in MAH, miliamp-hours), but there is a point at which the several curves of lift capacity, battery capacity, and total aircraft weight put a finite limit on flight time.
The flight time of the UAV referred to in my original post (#1) is reported as 25 minutes out of the box by the manufacturer.

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post #20 of 25 Old 12-27-2013
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Re: UAV Recon Possibility

Do a Google search. You'll find many companies selling RC quadcopters to LE and other agencies for SAR operations.
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