USN Decompression Tables & Procedures.pdf - Watchuseek, World's ...

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Introduction-2 Introduction Development of the USN Decompression tables – 1915: First set of decompression tables developed by French and Stillson for the USN Bureau of Construction and Repair – 1935: Second generation tables developed by Hawkins, Shillings, and Hanson – 1937: Third generation tables developed by Yarborough – 1951: Fourth generation developed by Van Der Aue – 1956: Fifth generation tables developed by Des Granger, Dwyer, and Workman developed with a UNIVAC computer and tested with approximately 600 man-dives at the USN EDU
Introduction-3 Introduction Development of the USN Decompression tables Con’t. – 1993: New probabilistic (versus deterministic) tables developed, but rejected by Naval Sea System Command (too conservative) – 1999: Latest version of USN Air Decompression Tables released. Includes new tables for traveling to altitude following dives – Future: New Nitrox Tables are being developed
Page 1 and 2: US Navy Decompression Tables and Pr
Page 3: What are decompression tables? Intr
Page 7 and 8: Table Definitions-2 Definitions Dec
Page 9 and 10: Dive Table Rules All dive schedules
Page 11 and 12: USN No-Deco No Deco Tables-2 Tables
Page 13 and 14: Description, cont. USN No-Deco No D
Page 15 and 16: Questions 1 and 2: USN No-Deco No D
Page 17 and 18: Question #3: USN No-Deco No Deco Ta
Page 19 and 20: Question #4: USN No-Deco No Deco Ta
Page 21 and 22: USN Repetitive Dive Tables-1 Tables
Page 27 and 28: Application--RNT: USN Repetitive Di
Page 31 and 32: USN Repetitive Dive Tables-11 Table
Page 33 and 34: D e p t h RGD SIT Diagramming Dives
Page 35 and 36: Know the dive table terms and abbre
Page 37 and 38: Standard air decompression tables M
Page 39 and 40: Description: USN Decompression Tabl
Page 41 and 42: 60 USN Decompression Tables-4 Table
Page 43 and 44: 60 USN Decompression Tables- Tables
Page 45 and 46: 60 USN Decompression Tables-8 Table
Page 47 and 48: USN Decompression Tables-10 Tables
Page 49 and 50: Minimum SIT-2 SIT Question: A diver
Page 51 and 52: - Step 6: Use SIT Table to determin
Page 53 and 54: Answer to question #1: 55’ 55’
Page 55 and 56:
Example SI Special Rule-2 Rule F 0:
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Answer question #1: Yes, using the
Page 59 and 60:
40’ Answer question #2 : Using Sp
Page 61 and 62:
Dive Sequencing-2 Sequencing Always
Page 63 and 64:
Learn when to use which dive table
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Brief SIT Safety stops Cold or ardu
Page 67 and 68:
Safety Stops Definition: Precaution
Page 69 and 70:
Cold or Arduous Dives-2 Dives When
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Ascent Variations The normal rate o
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Diving At Altitude-2 Altitude The U
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Flying After Diving-2 Diving R equi
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Flying After Diving-4 Diving Exampl
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Omitted Decompression-1 Decompressi
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Cont: Omitted Decompression-3 Decom
Page 83 and 84:
RNT Table Asterisks - 2 To avoid pu
Page 85:
Key Key Points If the SIT is less t
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