The Recreational Dive Planner Instructions for Use Jane

The Recreational Dive Planner Instructions for Use Jane E. Spencer MSDT 45434

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

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

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

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

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

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

Sample Problems - Table 2 o 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 o 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 o A diver in pressure group P will be in what pressure group after a 55 minute surface interval? P : 55

Sample Problems - Table 2 o 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 o 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 o 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 o 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 o 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 o 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 o 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 o 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 o 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 o 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 o 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 o Avoid confusion and make sure you don’t miss steps. Surface Interval Pressure Group after Dive 1 between dives (hours Pressure Group after Surface and minutes) Interval Pressure Group after Dive 2 : Depth RNT Depth +ABT TBT Bottom Time Dive 1 Bottom Time Dive 2 Find the RAT!

Planning Multiple Repetitive Dives o Indicate the final pressure group upon surfacing after the following series of dives. M 1: 00 D 40’ 50’ Depth +ABT 25 +60 TBT 85 RNT Depth 40 S 60

Planning Multiple Repetitive Dives o Indicate the final pressure group upon surfacing after the following series of dives. : 24 50’ 55’ Depth RNT Depth 50 +ABT 30 TBT +

Planning Multiple Repetitive Dives o Indicate the final pressure group upon surfacing after the following series of dives. U : 24 O 50’ 55’ Depth +ABT 47 +30 TBT 77 RNT Depth 50 X 30

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

Minimum Surface Interval o Find the minimum surface interval required to complete the following series of dives. Q 1: 21 C 60’ Depth RNT Depth 40 +ABT 40 TBT +

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

Minimum Surface Interval o Find the minimum surface interval required to complete the following series of dives. S : 11 P 40’ 50’ Depth RNT Depth 60 +ABT 70 TBT +

Special Rules o o o 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 o o 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.