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Slideshow: Nautical Robots Go With the Flow
4/25/2013

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Saab's Seaeye Falcon DR remotely operated vehicle (ROV) is used in a wide variety of applications, including oil & gas exploration, scientific exploration and data-gathering, and environmental monitoring. Its depth rating is 1,000 m (3,280 ft), and its maximum tether length is 1,100 m (3,608.9 ft) with a 14 mm (0.55 inch) diameter umbilical, although longer options can be achieved with custom umbilicals. It runs on a single-phase, universal auto-sensing, self-selecting input of 100-270V AC at 2.8 kW. The polypropylene chassis, measuring 635 mm x 600 mm x 1,055 mm (25 inch x 23.6 inch x 41.5 inch) is robust and lightweight for buoyancy and lack of corrosion. The robot's launch weight is 100 kg (220.5 lb), payload is up to 15 kg (33 lb), and top speed is more than 3 knots. 6,400 lumens of LED lights with variable density can be tilted to vary intensity, linked to the video camera's 180-degree tilting mechanism. Data and video are transmitted via F2 fiber optics. Powered by five magnetically coupled thruster units with a combined forward thrust of 50 kgf, the Seaeye Falcon DR has a 1:1 power to weight ratio. Standard sensors include auto depth and heading, pitch and roll, and compass.   (Source: Saab)
Saab's Seaeye Falcon DR remotely operated vehicle (ROV) is used in a wide variety of applications, including oil & gas exploration, scientific exploration and data-gathering, and environmental monitoring. Its depth rating is 1,000 m (3,280 ft), and its maximum tether length is 1,100 m (3,608.9 ft) with a 14 mm (0.55 inch) diameter umbilical, although longer options can be achieved with custom umbilicals. It runs on a single-phase, universal auto-sensing, self-selecting input of 100-270V AC at 2.8 kW. The polypropylene chassis, measuring 635 mm x 600 mm x 1,055 mm (25 inch x 23.6 inch x 41.5 inch) is robust and lightweight for buoyancy and lack of corrosion. The robot's launch weight is 100 kg (220.5 lb), payload is up to 15 kg (33 lb), and top speed is more than 3 knots. 6,400 lumens of LED lights with variable density can be tilted to vary intensity, linked to the video camera's 180-degree tilting mechanism. Data and video are transmitted via F2 fiber optics. Powered by five magnetically coupled thruster units with a combined forward thrust of 50 kgf, the Seaeye Falcon DR has a 1:1 power to weight ratio. Standard sensors include auto depth and heading, pitch and roll, and compass.
(Source: Saab)

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Ann R. Thryft
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Re: Variety of water worthy robots
Ann R. Thryft   4/29/2013 12:35:19 PM
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Rob, you've got it: shapes and their movements in water are extremely important, probably as much so as on land, but with a different set of requirements. The FILOSE fish robot made this clearer to me.



Elizabeth M
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Re: Nautical Robots
Elizabeth M   4/29/2013 4:41:29 AM
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Great slideshow, Ann. It's interesting to see the diversity and technology range of these robots, even while they share some features in common.

notarboca
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Re: Nautical Robots
notarboca   4/28/2013 3:23:51 PM
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Nice slideshow. A very interesting range of design styles and the thought that went into them.  All the sensor payloads are a science unto themselves.  One of the most interesting facts was that one of them had a magnetically coupled powertrain; great way to keep leaks from occurring under propulsion.

jmiller
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Re: NAUTICAL ROBOTS
jmiller   4/28/2013 2:54:04 PM
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You bring to light several of the challenges designing for underwater.  Thanks for sharing.

jmiller
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Re: NAUTICAL ROBOTS
jmiller   4/28/2013 2:51:57 PM
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Interesting thought.  How many of us think about what it would be like to design for robots underwater.  We are so used to thinking about designing in air.  Quite a challenge to design for underwater.  The drag, the water dynamics.  All of that could be quite a challenge.  We'd have to all go back to some of those fluid dynamics equations.  Great thought.

jmiller
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Re: Anti-submarine warfare
jmiller   4/28/2013 2:48:09 PM
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I too have had to spend some time in a few submarines.  And I agree it must be rough.  I always wondered if there wasn't a height limit on those serving in submarines.

jmiller
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Re: Anti-submarine warfare
jmiller   4/28/2013 2:48:00 PM
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I too have had to spend some time in a few submarines.  And I agree it must be rough.  I always wondered if there wasn't a height limit on those serving in submarines.

jmiller
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Re: Variety of water worthy robots
jmiller   4/28/2013 2:44:57 PM
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Sometimes it's interesting how no matter how much we try to make things better, it's the original that performs just fine.  In some cases, I don't know if there can  be improvements, in others, I think it's the fact that the original can do 95% of the job and the other 5% aren't really missed.

 

jmiller
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Re: Variety of water worthy robots
jmiller   4/28/2013 2:44:53 PM
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Sometimes it's interesting how no matter how much we try to make things better, it's the original that performs just fine.  In some cases, I don't know if there can  be improvements, in others, I think it's the fact that the original can do 95% of the job and the other 5% aren't really missed.

 

jmiller
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Platinum
Re: Variety of water worthy robots
jmiller   4/28/2013 2:32:50 PM
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I agree.  Does God's design have some unique abilities or benefits that science just can't duplicate or improve on.

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