[Pearls Before Swine]

“2 nautical miles away”.

That’s a figure I’ve been waiting to hear. Now, is that 2 nautical miles going to work where the ocean is more than 2 miles deep? I dunno.

Anyway, if you forget about depth, and do spherical packing of 2 mile spheres on the ocean map, you can see it’s a real needle-in-the-haystack search. It’s no wonder they are jumping on the flimsiest sightings of sea garbage as the black box battery life winds down.

[Tenacious 1]

Anyway, if you forget about depth, and do spherical packing of 2 mile spheres on the ocean map, you can see it’s a real needle-in-the-haystack search.

I made this point before. Originally they were covering a search are about the size of Ohio. Then it expanded to two areas about the size of Texas. Now they seem to be back to searching an area the size of North America. That's like looking for a 1/2 carrot diamond on a dry sandy beach.

[al baby]

Reminds me of the saying and I have no idea who said it but looking out over the expanse of ocean no land in sight Wow that’s a lot of ocean and the other guy says and thats just the top of it

[Sacajaweau]

All you have to do is pick a spot and wait. These ships know the flow and they know it is in "paths".

Obviously, this is a hopeless hunt.

Maybe check some other places....like Pakistan.

[ltc8k6]

http://en.wikipedia.org/wiki/Underwater_locator_beacon

9M-MRO would have been 37.5Khz

[ltc8k6]

Also this:

http://rjeint.com/pdf/DK120.PDF

[spel_grammer_an_punct_polise]

“Now, is that 2 nautical miles going to work where the ocean is more than 2 miles deep?”

That would depend upon sea conditions at depth, temperature gradients, etc. If, for example, the temperature of the water is somewhat nearly being the same from surface to depth then the sound can travel for greater distances. If there is a layer of significant difference in temperature then the ping of the black box may not penetrate the temperature gradient.