Docstoc

Sample Problems - Table 1

Document Sample
Sample Problems - Table 1 Powered By Docstoc
					The Recreational Dive
Planner




                Instructions for Use
                    Jane E. Spencer
                       MSDT 45434
Sample Problems - Table 1
 A dive to 43 feet for one hour yields
  what pressure group?



      43’



            :60
Sample Problems - Table 1
 A dive to 43 feet for one hour yields
  what pressure group?
                  S



      43’



            :60
Sample Problems - Table 1
 A dive to 28 feet for 70 minutes
  yields what pressure group?



      28’



            :70
Sample Problems - Table 1
 A dive to 28 feet for 70 minutes
  yields what pressure group?
                  N



      28’



            :70
Sample Problems - Table 1
 A dive to 60 feet for 40 minutes
  yields what pressure group?



      60’



            :40
Sample Problems - Table 1
 A dive to 60 feet for 40 minutes
  yields what pressure group?
                  Q



      60’



            :40
Sample Problems - Table 2
 After a dive you are in pressure group J. What
  will your new pressure group be after a 32
  minute surface interval?
                J   :32
Sample Problems - Table 2
 After a dive you are in pressure group J. What
  will your new pressure group be after a 32
  minute surface interval?
                J   :32   E
Sample Problems - Table 2
 A diver in pressure group P will be in what
  pressure group after a 55 minute surface
  interval?
                P   :55
Sample Problems - Table 2
 A diver in pressure group P will be in what
  pressure group after a 55 minute surface
  interval?
                P   :55   F
Sample Problems - Table 2
 A diver in pressure group I will be in what
  pressure group after a surface interval of four
  hours?
                P 4:00
Sample Problems - Table 2
 A diver in pressure group I will be in what
  pressure group after a surface interval of four
  hours?
                P 4:00 A
Sample Problems - Table 3
 If you are in pressure group K after your
  surface interval, and you are planning a dive to
  60 feet, what is your adjusted no
  decompression limit?
                         K


                   60’
Sample Problems - Table 3
 If you are in pressure group K after your
  surface interval, and you are planning a dive to
  60 feet, what is your adjusted no
  decompression limit?
                             K


                       60’



   29
   26      ANDL = 26
Sample Problems - Table 3
 After a surface interval you are in pressure
  group P and planning a dive to 50 feet. What is
  your adjusted no decompression limit?


                         P


                   50’
Sample Problems - Table 3
 After a surface interval you are in pressure
  group P and planning a dive to 50 feet. What is
  your adjusted no decompression limit?


                            P


                      50’



   50
   30     ANDL = 30
Sample Problems - Table 3
 If you’re in pressure group M after a surface
  interval, what is the residual nitrogen time if
  you’re planning a repetitive dive to 60 feet?


                          M


                    60’
Sample Problems - Table 3
 If you’re in pressure group M after a surface
  interval, what is the residual nitrogen time if
  you’re planning a repetitive dive to 60 feet?


                            M


                      60’



   33
   22      RNT = 33
Sample Problems - Table 3
 Following a surface interval, you’re in pressure
  group T. What would be your RNT for a
  repetitive dive to 50 feet?


                         T


                   50’
Sample Problems - Table 3
 Following a surface interval, you’re in pressure
  group T. What would be your RNT for a
  repetitive dive to 50 feet?


                            T


                      50’



   63
   17      RNT = 63
Drawing the Dive Profile
 Avoid confusion and make sure you don’t miss
  steps.        Surface Interval
                        between dives         Pressure Group
       Pressure Group   (hours and minutes)   after Surface
       after Dive 1                           Interval
                                                       Pressure Group
                                                       after Dive 2
                             :




                                                                  RNT
      Depth                 Depth
                                                                +ABT

                                                                  TBT
              Bottom Time           Bottom Time
                                                               Find the RAT!
          Dive 1                         Dive 2
Planning Multiple Repetitive Dives
 Indicate the final pressure group upon
  surfacing after the following series of dives.


                        1:00
                    M           D    S



       50’              40’
                                          RNT    25
       Depth            Depth
                                         +ABT   +60
               40               60        TBT      85
Planning Multiple Repetitive Dives
 Indicate the final pressure group upon
  surfacing after the following series of dives.


                    :24




       55’          50’
                                         RNT
       Depth        Depth
                                        +ABT   +
               50           30           TBT
Planning Multiple Repetitive Dives
 Indicate the final pressure group upon
  surfacing after the following series of dives.


                        :24
                    U           O    X



       55’              50’
                                          RNT    47
       Depth            Depth
                                         +ABT   +30
               50               30        TBT      77
Minimum Surface Interval
 Find the minimum surface interval required to
  complete the following series of dives.


                    :




      60’          60’
                                      RNT
      Depth        Depth
                                     +ABT   +
              40           40         TBT
Minimum Surface Interval
 Find the minimum surface interval required to
  complete the following series of dives.



                   Q   1:21    C



      60’              60’
                                      RNT
      Depth            Depth
                                     +ABT   +
              40               40     TBT
Minimum Surface Interval
 Find the minimum surface interval required to
  complete the following series of dives.


                    :




      50’          40’
                                      RNT
      Depth        Depth
                                     +ABT   +
              60           70         TBT
Minimum Surface Interval
 Find the minimum surface interval required to
  complete the following series of dives.


                        :11
                   S           P



      50’              40’
                                      RNT
      Depth            Depth
                                     +ABT   +
              60               70     TBT
Special Rules
 Flying after diving – wait 12 hours or for
  repetitive dives and/or multiple days wait
  18 hours (suggested)
 Cold – add 10 feet
 1000’ altitude limit for RDP
 Safety Stop – always do a safety stop
 A Safety Stop is REQUIRED for dives 100’
  plus or within three letter groups of NDL, or
  NDL
 Ascend no faster than 60 feet per minute
Emergency Decompression
 If a no decompression limit is exceeded by
  no more than 5 minutes, an 8 minute
  decompression stop at 15 feet is
  mandatory. Upon surfacing the diver must
  stay out of the water for at least 6 hours.
 If a no decompression limit is exceeded by
  more than 5 minutes a 15 foot
  decompression stop at 15 feet is urged (air
  supply permitting). Upon surfacing the
  diver must remain out of the water for at
  least 24 hours before making another dive.

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:3
posted:5/8/2013
language:English
pages:31