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Resolution. and the bluefin is a great tool for getting relatively high resolution over a small area. to give you an indication of scale, if you put deep tow sonar in the water, everything done by the bluefin could have been achieved in a single day. admittedly without the great resolution, that's great enough to find the 777. >> david, what do you think? >> you know, i think that's right. i agree with rob on that. the concern i have, though, is that what you don't want to find yourself in is another situation where you might have the wrong tool. i'm not saying deep towed sonar is the wrong to...

General public. this is identification that has to be calibrated and analyzed and put into some meaningful form. so i'm not sure that is really a reasonable request. but tapes? absolutely. >> final one to you here, talking about this underwater search if nothing comes up on mission ten what do you think should happen next? >> the next thing is a more strategic approach. a broad scale search of the vessel that last 300 miles or so to give you an indication, everything that blue pin has done to date could have been achieved in one day with a deep tow side scan sonar.

The navy may have diplomatically agreed with you. >> i think it's good practice to have a layer of redundancy when you're operating out on the ocean far from land. we have all of our eggs in one basket, the bluefin-21. that's operating at the very edge of its operational limits. those limits might be looked at with the manufacturer but it's not going to change the number of assets that we have on scene. >> rob, you heard him say, they have the orion, the towed sonar ready to go, it can go deeper than bluefin. that seemed like a pretty direct call that if the aussies wanted, it's there and the ...

>> and the weather is rough today. that means they can't put the submarine in the water. which is -- i don't know. it works underwater. that's kind of hard to understand. >> well, so like a lot of things, the riskiest time for these types of systems is during launch and during recovery. and the rougher the seria, the higher the sea stake, the more likely for instances, for instance, a collision with a ship. when an auv and slip collide, the ship wins every time. >> i can see that. is there any sub meantry technology that can be used along with this drone submarine that might make the task fast...