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Interview 1:30:44 - 2:07:08 Play 1:30:44 - More
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Bruce Applegate, Robert Ballard  

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Conversation; USS Yorktown search  

NPR/NGS Radio Expeditions
2 May 1998

    Latitude/Longitude
  • 30.59972   -176.56778
    Habitats
  • Ocean
  • Marine
    Channels
  • Mono
    Sampling Rate
  • 48kHz
    Bit Depth
  • 16-bit
    Recorders
    Microphones
    Accessories
    Equipment Note
  • Mono=2: 1=L, 2=R; Mono

Yorktown Log
DAT #2


001-052 rear deck ambi quiet talk up-launching MR1 115 ambi 157 Hello whopp whoop in distance 225 quiet ambi 420 hello testing 423 ambi 520 better ambi 900 steps across wet deck, Bruce talks in background 1100 Glenn on direction of sound bad bad 1214 Here we go! steps sloshing 12 38 Just so you guys know what we're gonna do, we're going to pay out this drogue buoy over the side, then, marching out this line here, pretty slow, 1 knot ..then let her steady up, then we'll deploy the towfish and that's when the dump truck, the tilt bed, goes up and down, fish'll go into the water, we'll payout 50 meters of that yellow line, at end, take towfish and put it on safety, attach depressor weight, at bottom of lrs (til bed) and it goes up and down again to deploy the weight, then, once that's in it's on the main tow wire and we'll payout a couple of hundred meters of that and then we're surveyin' 1338

****1623 Ok here we go; chains, rattle slosh, buoy splashes in 1740 sloshes1743

thrusters start (beep beep of radio locator) stops 1920

1956 marching out line 2205 stern water 2243bad bad

2405 radio comm 24 20

****2430 interesting sound-metal disc rolling on deek? 2445

2500 bad2501 (BA) you might want to have him slow up a bit, Kurt. OK ...right now course isn't important, don't care about the line CS we're about zero two zero right now 2540 ambi 2815-just keep walking it back, watch your feet 2828 stern water3000 perspective shift, back to stern water3015 3115 on deck, banging, voices 3149 Sadorf beep -Mark ships speed four point five, four point five, aye, still comin' up (distant) four and a half knots! deck ambi voices3328 (Sadoff) Nav, back deck, mark ships' speed? five knots. Aye.33 38 ambi voices shackle needed 3550 S-five point five speed? six knots, six knots ok launch it...clangs 3622 Tilt bed sound (mild}3730 slow transition to stern water, whine of line .

****3758 towfish slides in. stern water 4120 deck ambi good shackle sound 4312 bad (shearwater?)

(Ballard off mike) machinery noises, voices4858 here we go 4929 keep her comin' got it? we're going strait thru with the cable, then on the sheave, just walk it back ...

5150 metal banging ...Ballard off mike with Nate talking about the website, Ballard remarks about 'having the world look over your shoulder". 10434 Bruce after testing towfish -all right! We're looking good!10455 11000 stern water-beeps-

11118-bang...voices ...Clang of depressor weight-tilt bed (mild) Lower!11245 ratcheting voices 12150 stern water 55 clunk12216

(ARTIFACT)12234 clunk stern water 12314 (ARTIFACT), another12430 back to deck More artifacts-(mic not plugged in properly?) 13109 inside-Ballard-originally we were hoping a pixel was 16 meters talking with Bruce about swath width...3.2 k on a side (ARTIFACTS MOVE)

****13550 BB: alright. Well, the vigil begins. DM BA and BB talk 14516 wet lab ambi with voices in bkgrnd, door 14550ti4635 we used to have on the old analog:, system, could turn up volume to hear pulse and backscatter snd -this all dig BB boy sound fx, huh? why that banding? Artificial, Beam. So when do you post in increments or lines, every hour -Karen's working on that, right behind you. 14853 so we're looking at about 270 meters long, the Yorktown in longest dimension, so, about 12 pixels long at 10 sec rep rate and 15 pixels long at sec rep rate

****15610 (BA) so on the screen right now that line, that line that's about two tenths of an inch long, is the length of the Yorktown -a spit a dot - and hoping to see some ancillary structures like a crater. Debris field show up? Probably not. NC and the destroyer that's about a fifth the size of Yorktown, that wouldn't show up just a speck.

20509..this is pretty different from going out to do a standard geophysical
survey, you can passively watch and say, gee there's a volcano there's a fault, this is , we're looking for a specific target and it's pretty nerve-wracking, more nerve-wracking than I expected it would be.

20527 .. q this mic and the tv camera represent a bit of pressure?

yeah, not standard, but we'll deal with it.

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