Origional Trieste 1953-1963

DIVE LOG for the Origional TRIESTE
1953 -- 1963

1953 - Maiden Dive
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
1
 8/11/53 Castle Lammare Harbor . 26' . . A. Piccard J. Piccard Baptismal Test Submersion
2
 8/13/53 Castle Lammare Harbor' . 53' . . A. Piccard J. Piccard Test Dive
3
 8/14/53 Off Castle Lammare Di Stabia 40° 30' N
14° 12.5' E 		130' . Tenace A. Piccard J. Piccard First open Water Test Dive
4
 8/26/53 South of Capri Islanda . 3,540' . Tenace A. Piccard J. Piccard Technical & Observations
5
 9/29/53 Off Ponza Island . 50' . Tenace J. Piccard A.Tiraetta Test Dive
6
 9/30/53 South of Ponza Island . 10,300' . Tenace A. Piccard J. Piccard Technical & Observations
7
 10/02/53 South of Ischia Island . 2,150' . Tenace J. Piccard V. De Sanctis Toxic Fumes (Aborted)
8
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
9
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
10
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
11
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
12
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
13
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
14
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
15
 /54 Gulf of Naples . To 500' . . J. Piccard 8-15 Dives
P. Tardent
A.Pollini
Marie Piccard
Others 		Technical & Observations
16
 9/29/56 Off Castel Lammare
Di Stabia 		. 55' . . J. Piccard . Test Dive
17
 10/02/56 Off Castel Lammare
Di Stabia 		. 130' . . J. Piccard M. Kobr U. of Lausanne Biological Observations
18
 10/10/56 Gulf of Naples . 500' . . J. Piccard A. Pollini U. of Milan Oceanographic Observations
19
 10/12/56 B/T Capri & Ischia Island . 2,030' . . J. Piccard A. Pollini U. of Milan Oceanographic Observations
20
 10/13/56 So. of Capri Island . 3,600' . . J. Piccard A. Pollini U. of Milan Oceanographic Observations
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
21
 10/16/56 So. of Ponza Island 40° 32' N
13° 02' E 		6,550' . . J. Piccard A. Pollini U. of Milan Oceanographic Observations
22
 10/17/56 So. of Ponza Island 40° 37' N
12° 49' E 		12,110' . . J. Piccard A. Pollini U. of Milan Oceanographic Observations
23
 6/21/57 Off Castel Lammare
Di Stabia 		. 110' . . J. Piccard W Kiehlhorn Off.
Naval Researsh 		Technical (Compass Compensation)
24
 7/01/57 Off Capri Island 40° 25' N
14° 16' E 		860' . Tenace J. Piccard N Jerlov Swedish
Oceanographer 		Measurement of Light Penetration
25
 7/01/57 Off Capri Island 40° 26' N
14° 15' E 		985' . Tenace J. Piccard N Jerlov Swedish
Oceanographer 		Measurement of Light Penetration
26
 7/03/57 Off Capri Island 40° 30' N
14° 15' E 		1,970' . Tenace J. Piccard N Jerlov Swedish
Oceanographer 		Measurement of Light Penetration
27
 7/03/57 Off Capri Island 40° 30' N
14° 15' E 		3,600' 2hr 31min. Tenace J. Piccard R Dietz Off.
Naval Researsh 		Oceanographic Observations
28
 7/18/57 Off Capri Island 40° 30' N
14° 15' E 		3,600' . . J. Piccard R Lewis USN
Underwater Sound Lab 		Underwater Sound
Experiments (Hi Freq)
29
 7/20/57 Off Capri Island 40° 30' N
14° 15' E 		3,700' . . J. Piccard A Rechnitzer USN
Electronics Lab 		Biological Observations
30
 7/24/57 Off Capri Island 40° 30' N
14° 15' E 		3,540' . . J. Piccard M. Lomask Hudson Lab
Columbia U. 		Underwater Sound
Experiments (Low Freq)
31
 7/26/57 Off Capri Island 40° 32' N
14° 14' E 		555' . . J. Piccard Capt. Madison USN Demonstration
32
 7/26/57 Off Capri Island 40° 32' N
14° 14' E 		985' . . J. Piccard M. Kobr Biological Observations
33
 7/26/57 Off Capri Island 40° 32' N
14° 14' E 		1,480' . . J. Piccard A. Rechnitzer Biological Observations
34
 8/30/57 Off Castle Lammare
Di Stabia 		40° 42' N
13° 00' E 		175' . . J. Piccard R. Lewis Technicial
35
 9/02/57 Off Capri Island 40° 31' N
14° 28' E 		3,580' . . J. Piccard R. Lewis Underwater Sound Experiments
36
 9/09/57 Off Ponza Island 40° 35' N
13° 00' E 		9,200' . . J. Piccard R. Lewis Underwater Sound
Experiments
37
 9/11/57 Off Ponza Island 40° 35' N
13° 00' E 		985' 3hr. (aprox.) . J. Piccard R. Lewis Underwater Sound
Experiments with Trieste
Suspended in Mid-water
38
 9/19/57 Off Ponza Island 40° 35' N
12° 55' E 		10,500' . . J. Piccard M. Lomask Underwater Sound
Experiments
39
 9/21/57 Off Ponza Island 40° 30' N
13° 00' E 		9,850' . . J. Piccard R. Frassetto Hudson Lab
Columbia Univ. 		Underwater Sound
Experiments
40
 10/12/57 Off Capri Island 40° 30' N
14° 15' E 		3,850' . . J. Piccard A. Rechnitzer Biological Observations
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
41
 10/14/57 Off Capri Island 40° 31' N
14° 14' E 		3,400' . . J. Piccard G. Boteron
U of Lausanne 		Geological Observations
42
 10/14/57 Off Capri Island 40° 30' N
14° 14' E 		3,540' . . J. Piccard E. Frassetto Underwater Sound Experiments
43
 10/16/57 Off Sorrento penisula 40° 34' N
14° 21' E 		2,700' . . J. Piccard S. Digeglie
U of Bari 		Gravity Measurements
44
 10/17/57 Off Capri Island 40° 33' N
14° 14' E 		80' . . J. Piccard Capt.Salvi
Italian Navy 		Photography
45
 10/18/57 Off Capri Island 40° 34' N
14° 00' E 		720' . . J. Piccard Capt.Salvi
Italian Navy 		Demonstration
46
 10/18/57 Off Capri Island 40° 34' N
14° 00' E 		885' . . J. Piccard Capt.Stearns USN Demonstration
47
 10/18/57 Off Capri Island 40° 34' N
14° 00' E 		800' . . J. Piccard A. Baum Photography
48
 10/25/57 Off Castle Lammare
Di Stabia 		40° 42' N
14° 24' E 		300' . . J. Piccard Capt. Ventura
Italian Navy 		Demonstration
1957 - Trieste Purchased by US Navy and Moved to US
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
49
 12/17/58 San Diego Harbor 32° 41.8' N
117° 14.0' W 		70' . . J. Piccard A. Rechnitzer Test Dive
50
 12/20/58 Loma Sea Valley 32° 39.5' N
117° 23.0' W 		860' . . J. Piccard John Light
NBC News 		Demonstration & Photography
51
 5/12/59 San Diego Harbor 32° 41.8' N
117° 14.0' W 		50' . . J. Piccard Lt. Don Walsh USN Test Dive
52
 5/19/59 Loma Sea Valley 32° 40.2' N
117° 23.1' W 		720' 1309-1613
(3hr 4min) 		. J. Piccard A. Rechnitzer Biological Observations
53
 5/22/59 San Diego Trough 32° 37.6' N
117° 29.7' W 		4,100' 1330-1644
(3hr 14min) 		. J. Piccard Lt.Don Walsh Technical
54
 5/28/59 San Diego Harbor 32° 41.8' N
117° 14.0' W 		60' . . J. Piccard K Meckenzie
USN NEL 		Test Dive for underwater
Experiments
55
 5/29/59 San Diego Trough 32° 33.2' N
117° 27.0' W 		3,790' 1344-1738 (3hr 54min) . J. Piccard K Meckenzie
USN NEL 		Underwater Sound
Experiments
56
 6/05/59 Loma Sea Valley 32° 37.6' N
117° 22.2' W 		770' 1318-1445 (1hr 27min) . J. Piccard A. Rechnitzer Test Dive &
Biological Experiments
1959 -- Krupp Werke Sphere Installed
57
 9/11/59 San Diego Harbor 32° 41.8' N
117° 14.0' W 		62' . . J. Piccard Lt. L. Shumaker USN Test Dive after installation
of new sphere
58
 9/15/59 Loma Sea Valley 32° 40.2' N
117° 23.1' W 		590' . . J. Piccard A. Rechnitzer Biological Observations
59
 11/04/59 APR Harbor Guam 13° 29.5' N
144° 38.0' E 		70' . . J. Piccard Lt. L. Shumaker Test Dive
60
 11/10/59 West of Guam 13° 29.5' N
144° 38.2' E 		4,900' 1109-1537
(4hr 28min) 		USS Lewis J. Piccard A. Rechnitzer Test Dive & Ocean
Observation
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
61
 11/15/59 Sea of Guam 12° 52.8' N
145° 10.2' E 		18,150' 1015-1550
(3hr 35min) 		USS Lewis (DE 635)
USS Wandank 		J. Piccard Lt. D. Walsh Test Dive & Pilot Training/Qual
62
 12/14/59 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		65' . . J. Piccard J. Cawley, Gen Atomics Inc. Test Dive
63
 12/18/59 West of Guam 13° 30.1' N
144° 37.1' E 		5,450' 1045-1335
(2hr 50min) 		USS Lewis (DE 635)
USS Wandank 		J. Piccard Lt. D. Walsh Test Dive & Pilot Training/Qual
64
 12/29/59 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		100' 0925-1037
(1hr 12min) 		. Lt. D. Walsh Jensen Test Dive & Pilot Training/Qual
65
 12/29/59 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		100' 1138-1205
(0hr 27min) 		. Lt. L. Shumaker Degood Test Dive & Pilot Training/Qual
66
 12/29/59 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		100' 1315-1345
(0hr 30min) 		. Lt. D. Walsh A. Rechnitzer Test Dive & Pilot Training/Qual
67
 12/30/59 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		100' 0905-1001
(0hr 54min) 		. Lt. D. Walsh E. J. Michel MRCS USN Test Dive & Pilot Training/Qual
68
 12/30/59 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		100' 1057-1130
(0hr 33min) 		. Lt. L. Shumaker A. Rechnitzer Test Dive & Pilot Training/Qual
(Shumaker Qual)
69
 1/08/60 Marianas Trench
Nero Deep 		12° 40.0' N
145° 21.5' E 		22,560' 0954-1522
(5hr 28min) 		USS Lewis (DE 635)
USS Wandank 		J. Piccard Lt. D. Walsh Test Dive & Pilot Training/Qual
January 23, 1960 - Trieste Dives to 35,800 Feet
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
70
 1/23/60 Challenger Deep 11° 18.5' N
142° 15.5' E 		35,800' 0822-1658
(8hr 36min) 		USS Lewis (DE 635)
USS Wandank 		J. Piccard Lt. D. Walsh RECORD DIVE
71
 6/15/60 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		102' 1430-1501
(0hr 31min) 		. Lt. D. Walsh LCDR Winkler
ONR Code 466 		Test Dive & Pilot Training
72
 6/15/60 APRA Harbor Guam 13° 27.5' N
144° 39.0' E 		95' . . Lt L. Shumaker LCDR Kennedy
ONR Code 466 		Test Dive & Pilot Training
73
 6/21/60 West of Guam 13° 30.7' N
144° 37.0' E 		1,070' 1030-1300
(2hr 30min) 		. Lt D. Walsh A. Rechnitzer Shallow Sound Velocity Measurements
74
 6/25/60 West of Guam 13° 30.3' N
144° 36.4' E 		1,455' 1428-1536
(1hr 8min) 		. Lt L. Shumaker LCDR Kennedy Test Dive & Indoctrination
75
 7/01/60 East of Guam 13° 26.0' N
145° 31.0' E 		8,530' 1239-1713
(4hr 34min) 		. Lt D. Walsh A. Rechnitzer Sound Velocity Measurements
76
 7/01/60 South of Marinas Trench 13° 44.5' N
144° 53.5' E 		18,900' 0817-1538
(7hr 21min) 		. Lt L. Shumaker A. Rechnitzer Sound Velocity Measurements
77
 7/06/60 West of Guam 13° 28.2' N
144° 24.5' E 		1,140' 1145-1625
(5hr 40min) 		. Lt L. Shumaker A. Rechnitzer Sound Velocity Measurements (Shallow)
78
 7/09/60 West of Guam 13° 27.0' N
144° 32.1' E 		7,500' 1003-1704
(7hr 2min) 		. Lt D. Walsh A. Rechnitzer Sound Velocity & Gravity Measurements
79
 9/07/61 San Diego Harbor 32° 41.8' N
117° 14.0' W 		40' . . Lt D. Walsh EM1 Adams USN Test Dive
80
 9/12/61 San Diego Harbor 32° 41.8' N
117° 14.0' W 		69' . . Lt L. Shumaker ET1 Devoe USN Test Dive
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
81
 9/14/61 South 1/2 Op Area YY-4 32° 37.8' N
117° 20.9' W 		594' 1228-1345
(1hr 17min) 		. Lt D. Walsh Shumway Geology and Ocean Test
82
 10/11/61 San Diego Harbor 32° 41.8' N
117° 14.0' W 		48' . . Lt D. Walsh ENC (SS) Chandler Test Dive
83
 10/13/61 Op Area VV-6 32° 55.3' N
117° 20.9' W 		1920' 1047-1314
(3hr 27min) 		. Lt L. Shumaker R. Dill USN NEL Geographical Investigation Sediment Transport and Formation
84
 10/25/61 OP Area YY-3 32° 37.0' N
117° 30.0' W 		3.960' 1323-1617
(2hr 54min) 		. Lt D. Walsh La Fond Biological and Geological Observations
85
 12/07/61 San Diego Harbor 32° 41.8' N
117° 14.0' W 		40' . . Lt L. Shumaker Beagles Test Dive
86
 1/13/61 San Diego Harbor 32° 41.8' N
117° 14.0' W 		53' . . Lt L. Shumaker Barham Test Dive
87
 1/17/62 West 1/2 Op Area SS-2 32° 27.1' N
117° 28.4' W 		4,200' 0937-1339
(4hr 2min) 		. Lt L. Shumaker Barham Biological Investigations of Water Column
88
 2/14/62 Center Op Area SS-2 32° 27.5' N
117° 28.5' W 		4,200' 0858-1236
(3hr 38min) 		. Lt D. Walsh Barham Investigation of Midwater Biological Population & Seismograph Measurements
89
 2/28/62 Center Op Area SS-5 32° 18.5' N
117° 24.0' W 		4,200' 0750-1108
(3hr 18min) 		. Lt L. Shumaker Beagles Geographical and Biological Observations
90
 3/14/62 South 1/2 Op Area YY-1 32° 46' N
117° 28.0' W 		1,200' 0715-1052
(3hr 37min) 		. Lt D. Walsh Beagles Bottom Reflections, Characteristic of Acoustic Signals ,Geographical Observations and Sedament Samples
91
 3/21/62 Center & West Bndry Op Area VV-6 32° 55.0' N
117° 23.0' W 		1,920' 0856-1252
(3hr 56min) 		. Lt L. Shumaker R. Dill USN NEL Geological Investigation of Canyon Formation
92
 3/28/62 Center & N 1/2 Op Area SS-2 32° 31.2' N
117° 26.0' W 		3,768' 1137-1415
(2hr 38min) 		. Lt D. Walsh Barham Investigate Biological Pattern of Water Column, Micro-Seasmograph Measurements
93
 4/04/62 VV-6 32° 54.7' N
117° 21.5' W 		1,920' 1107-1523
(4hr 16min) 		. Lt L. Shumaker R. Dill Gographical Observations
94
 4/27/62 San Diego Harbor 32° 41.8' N
117° 14.0' W 		64' . . Lt D. Walsh LCDR. D. Keach Pilot Training
95
 4/27/62 San Diego Harbor 32° 41.8' N
117° 14.0' W 		64' . . Lt D. Walsh LCDR. D. Keach
Lt. G. Martin 		Pilot Training
96
 6/05/62 San Diego Harbor 32° 41.8' N
117° 14.0' W 		40' . . Lt D. Walsh LCDR. D. Keach Pilot Training
97
 6/06/62 Op Area YY-3 32° 37.2' N
117° 23.3' W 		1,000' 1240-1407
(1hr 27min) 		. Lt D. Walsh LCDR. D. Keach Pilot Training
98
 6/14/62 Op Area YY-3 32° 37.0' N
117° 30.5' W 		3,600' 1355-1601
(2hr 6min) 		. LCDR. D. Keach Lt. G, Martin LCDR D. Keach Qualified Pilot Training
99
 6/20/62 San Diego Harbor 32° 41.8' N
117° 14.0' W 		72' 1332-1358
(2hr 6min) 		. Lt. G, Martin Tague Lt. Martin Qualified Pilot Training
100
 6/28/62 Op Area YY-3 32° 37.7' N
117° 29.5' W 		4,050' . . Lt. G, Martin LCDR D. Keach Pilot Training
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
101
 7/06/62 Op Area VV-5 32° 53.1' N
117° 25.8' W 		2,220' 0647-0951
(3hr 4min) 		. LCDR D. Keach Buffington Geographic Study of Cross Section of La Jolla Canyon
102
 7/13/62 Op Area VV-5 32° 27.7' N
117° 28.5.2' W 		1,970' 0905-1234
(3hr 29min) 		. Lt. G. Martin R.Dill Study Sediment Distribution,Minor Topography of La Jolla Canyon
103
 7/20/62 Op Area SS-2 32° 27.7' N
117° 28.5' W 		4,080' 0817-1201
(3hr 44min) 		. LCDR D. Keach Braham Studo of Deep Scattering Layer, Biological Net Haul
104
 7/27/62 Op Area VV-5 32° 54.9' N
117° 23.0' W 		2,250' 0830-1201
(3hr 31min) 		. Lt. G. Martin R. Dill Explore Microtopography and sediment distribution inside La Jolla Canyon. Test hydrophones for AGSS-555
105
 8/03/62 Coronado Submarine Canyon SS-2 32° 27.5' N
117° 22.0' W 		3,480' 0852-1237
(3hr 45min) 		. LCDR D. Keach R. Dill Geological Investigation
106
 8/09/62 Op Area YY-1 32° 45.9' N
117° 23.1' W 		1,200' 1340-1614
(2hr 34min) 		. Lt. G. Martin Hamilton Geological Observations of submarine Canyon, Series of measurements on AGSS-555 Hydrophones
107
 8/19/62 Op Area SS-2 32° 34.5' N
117° 25.0' W 		2,200' 1226-1528
(3hr 2min) 		. LCDR D. Keach Moore Geological Observations Shear Vane Meter Experiments, Tests of AGSS-555 Hydrophones
108
 8/22/62 Op Area YY-1 32° 43.3' N
117° 23.5' W 		1,200' 1323-1700
(3hr 37min) 		. Lt. G, Martin Hamilton Joint Seafloor Sound Refraction Measurements with U?W NEL Acustic Branch
109
 8/31/62 Op Area SS-2 32° 32.5' N
117° 27.0' W 		4,140' 1326-1613
(3hr 17min) 		. LCDR D. Keach Hamilton Sound Attenuation & Refraction in Sea Floor Sediments. Calibration of Deep water
110
 9/07/62 Op Area SS-2 32° 32.0' N
117° 26.1' W 		4,170' 1333-1643
(3hr 10min) 		. Lt. G Martin Barham Sound Attenuation & Refraction in Sea Floor Sediments. Calibration of Deep water
111
 9/12/62 Op Area YY1-2 32° 49.5' N
117° 21.0' W 		300-450' 1321-1605
(2hr 44min) 		. LCDR D. Keach Moore Geological Investigation of Continental Shelf Edge of Southern Calif.
112
 9/21/62 Op Area SS-2 32° 30.25' N
117° 25.5' W 		3,120' 1225-1525
(3hr 00min) 		. Lt. G Martin Hamilton Sound Velotity & Attenuation Measurements,Shear Vane Measurements of Seafloor Sediments
113
 10/17/62 Op Area YY-1 32° 50.5' N
117° 24.0' W 		1,380' 1300-1634
(3hr 34min) 		. LCDR D. Keach Barham Observation of the Deep Scattering layer in Conjunction with Acoustic and Radio Wave Meas. , AGSS-555 Transducer Test
114
 10/22/62 Op Area YY-1 32° 53.7' N
117° 30.4' W 		2,430' 0736-0933
(1hr 57min) 		. Lt. G. Martin Buffington Geological Investigation of Submarine Canyon, Cosmic Ray Meas., VLF Recorder, Biologicat Observations
115
 10/31/62 Op Area YY-1 32° 47.0' N
117° 28.0' W 		2,100' 1327-1657
(3hr 30min) 		. LCDR D. Keach Hamilton Sound Speed through Sediment, Sediment Shear Strength Meas. Low Freq Radio Meas. Magnetic Meas. Cosmic Ray Meas.
116
 3/63 San Diego Harbor 32° 41.8' N
117° 14.0' W 		69' 1535-1548
(0hr 13min) 		. LCDR D. Keach Mason Post Overhaul of Trieste and Equipment
117
 5/04/63 Continental Shelf Delmar 32° 57.3' N
117° 18.6' W 		336' 1025-1331
(3hr 6min) 		. LCDR D. Keach Buffington & Barnett Test and& Scientific Topography of Continental Shelf and Slope
Trieste Conducts First Search for Wreackage of the
USS Thresher (SSN-593)
118
 6/04/63 Murray Basin Atlantic 42° 32.0' N
69° 51.0' W 		720' 0932-1039
(1hr 7min) 		. LCDR D. Keach Walker Check Integrity of Hull, Components & New Equipment, Training for Thresher Search
119
 6/24/63 North Atlantic 42° 32.0' N
69° 31.0' W 		8,500' up-1552
(?) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) Lt. G. Martin K. Mackenzie USNEL Thresher Search
120
 6/26/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 0830-1435
(6hr 5min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) Lt. G. Martin K. Mackenzie USNEL Thresher Search
Dive #
Date
Location
GeoPosition
Depth
Duration
Support Ship
Pilot
Observer
Remarks
121
 6/27/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1146-1745
(5hr 59min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) LCDR D. Kach K. Mackenzie USNEL Thresher Search
122
 6/29/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 00755-1411
(6hr 16min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) Lt. G. Martin K. Mackenzie USNEL Cash Thresher Search
123
 6/30/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1315-1800
(4hr 45min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) LCDR D. Keach Capt. F. A. Andrews K. Mackenzie Thresher Search
124
 8/23/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1400-1831
(4hr 31min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) LCDR D. Keach K. Mackenzie Thresher Search
125
 8/27/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1443-1945
(4hr 31min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) Lt. G. Martin K. Mackenzie, LCDR A. Gilmore Thresher Search
126
 8/28/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1145-1815
(6hr 30min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) LCDR D. Keach CDR Jw Davies, LCDR A. Gilmore
127
 8/29/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1255-1930
(6hr 30min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) Lt. G. Martin CDR JW Davies, James Thresher Search
128
 9/01/63 North Atlantic 41° 44.4' N
64° 57.0' W 		8,500' 1445-1900
(5hr 15min) 		USS Presearver (ARS-8) USS Fort Snelling (LSD-30) LCDR D. Keach Lt. B. Henifin, James Thresher Search
September 1, 1963 Last Dive by the Origional Trieste