Top Queries / Hit List of all Search Strings / Hitliste der haeufigsten Anfragen
Rationale:
- Here we put together a hit list of the top most queries,
- i.e. all these search strings which the users key into a search engine,
- these strings are quoted here literally.
- (It means, we are not responsible for a cryptic syntax or a weird expression)
- But anyway we try to provide here a section with:
- Questions & Answers ( Q & A )
- to these search strings
- NB: except these strings we do not track anything else!
- i.e.: we do not set cookies or trace UserIds or IP adrs.
- That is: we are fully compliant to the german data privacy law (BDSG)!
- Promise!
Abbreviations / Abkuerzungen
here we used the following abbreviations for the A-sections:
- RG: Repetitive Group / Wiederholungs Gruppe
- SI: Surface Intervall / Oberflaechenpause
- NDL: No Decompression Limit / Nullzeitgrenze
- n.a.: not applicable
The following tables for Air Diving are used / folgende Tabellen fuer Luft-TG werden
benutzt:
- PADI RDP(r)
- USN old
- USN 2008
- DCIEM
- DECO 2000
Nota Bene:
please be aware that the letters of the RG are not interchangeable from the various tables!
I.e.: a "F" from the DCIEM is something completely different from a "F" in the DECO 2000 or the USN system
due to the different methods in calculating and the different decompression algorithms.
The only comparable parameters are the physical ones, for e.g. a time in minutes.
I.e.: varying NDL or varying length and/or depth of the deco stops.
Q & A:
(in increasing depth & times / nach zunehmender Tiefe & Grundzeiten)
(last update: 12/2016)
Q: 11 m 39 feet and stay for 46 minutes what would your pressure group?
A:
=> 11 m --> 12 m, 39 feet --> 40 feet
- PADI RDP: 12 m (NDL 147 min), 49 min --> RG K
- USN old: 40 ft (NDL 200 min), 50 min --> RG F
- USN 2008: 40 ft (NDL 163 min), 53 min --> RG F
- DCIEM: 40 ft (NDL 150 min), 60 min --> RG D
- ZH-86: 12 m, 125 min --> RG G, req. deco stop 3 m / 1 min
- DECO 2000: 12 m (NDL 140 min), 54 min --> RG E
Q: decompression time after a 90 minute 48 foot dive
A:
=> 48 feet --> 50 feet / 15,2 m (--> 16 m resp. 18 m)
- PADI RDP: RG n.a. (NDL 72 min)
- USN old: (50 feet / 90 min) RG K --> No Stop Dive
- USN 2008: (50 feet / 92 min) RG M -->No Stop Dive
- DCIEM: (50 feet / 100 min) RG I, deco stop: 10 feet / 6 min
- DECO 2000: (18 m / 90 min) RG n.a. deco stop: 3 m / 25 min
Q: 50' diving ndl
A:
=> 50 feet --> 15,2 m (--> 16 m resp. 18 m)
- PADI RDP: NDL 72 min
- USN old: NDL 100 min
- USN 2008: NDL 92 min
- DCIEM: NDL 75 min
- DECO 2000: (15 m) NDL 72 min, (16 m --> 18 m) NDL 45 min
Q: diving for 45 minutes on 16 meter
A:
- PADI RDP: RG O
- USN old: (60 feet / 50 min) RG H
- USN 2008: (55 feet / 50 min) RG H
- DCIEM: (18 m / 50 min) RG F
- DECO 2000: (18 m / 45 min) RG F
Q: decompression limit for 60 feet
ndl for 18m; what is the no decompression limit for 18 meters; decompression limit for 18
meters in diving; nullzeitgrenze fuer18 meter
A:
=> 60 feet / 18,2 m (--> 18 m resp. 21 m)
- PADI RDP: NDL 56 / 45 min
- USN old: NDL 60 / 50 min
- USN 2008: NDL 60 min
- DCIEM: NDL 50 min
- DECO 2000: NDL 45 / 31 min
Q: 18m/60ft for 40 min
A:
- PADI RDP: 41 min, RG P
- USN old: RG G
- USN 2008: 45 min, RG H
- DCIEM: RG E
- DECO 2000: 45 min, RG F
Q: decompression time 65 feet x 65 minutes
A:
=> 65 feet --> 70 feet / 21,3 --> 21 or 22 m
- PADI RDP: n.a.
- USN old: 70 feet, 70 min, RG L --> deco stop: 10 feet / 14 min
- USN 2008: 70 feet, 70 min, RG N --> deco stop: 20 feet / 24 min ( 13 min with 100 % O2)
- DCIEM: 70 feet, 70 min, RG J --> deco stops: 20 feet / 3 min + 10 feet / 19 min
- ZH-86: 21 m, 70 min: deco stop: 3 m / 24 min ( with the Buehlmann safety factor)
- DECO 2000: 21 m, 70 min, RG n.a. --> deco stop: 6 m / 5 min + 3 m / 16 min
- DECO 2000: 21 m, 70 min, RG n.a. --> deco stop: 6 m / 9 min + 3 m / 24 min (with the Buehlmann safety factor)
Q: 40 mins at 20 m dive
A:
- PADI RDP: RG R --> safety stop required
- USN old: 70 feet, RG H --> No Stop Dive
- USN 2008: 70 feet, 42 min, RG I --> No Stop Dive
- DCIEM: 21 m, RG F --> deco stop: 3 m / 5 min
- DECO 2000: 21 m, 41 min, RG F --> deco stop: 3 m / 5 min
Q: max time for 20 meter dive rgbm
A:
assume: dive with AIR at SEA LEVEL
- 1) the table from RGBMdiving.com
- 60 feet: 55 min RGBM NDL
- 70 feet: 45 min RGBM NDL
- max. depth on 2nd. dive always: - 30 feet (MINUS 30 feet!)
- min. SI: + 3 h
- 2) the NAUI RGBM Air table:
- table entries: 70 feet / 21 m
- 1 st. dive: 40 min RGBM NDL
- 2 nd. dive: n.a. (max depth 50 feet / 15 m: 80 min RGBM NDL)
- 3 rd. dive: n.a. (max depth 30 feet / 9 m: 150 min RGBM NDL )
- min. SI: + 1 h!
- safety stops required at 15 feet +/- 3 feet for 3 min.
Q: decompression stop after 16 minutes at 26 meters
A:
no deco stops required, safety stop recommended
- PADI RDP: --> 30 m, NDL 20 min
- NAUI RGBM: --> 27 m, Max Dive Time (MDT): 25 min
- USN old: --> 27 m, NDL: 30 min
- USN 2008: --> 28 m, NDL: 30 min
- DCIEM: --> 27 m, NDL: 20 min
- DECO 2000: --> 27 m, NDL: 18 min
Q: 30 m no deco
A:
assume air, immediate descent
- PADI RDP: 20 min, safety stop required: 3 min @ 5 m
- USN old: 100 feet; 25 min
- USN 2008:100 feet; 25 min
- DCIEM: 15 min
- DECO 2000: 15 min
- RGBM: 20 min, safety stop required: 3 min @ 15 feet
Q: NDL 30 m with EAN32, Nitrox 32
A:
assume SEA LEVEL, immediate descent
- Deco 92 EAN32: 24 min
- DECO 2000 (EAD @ 24 m): 23 min
- PADI RDP EAN 32: 30 min, safety stop required: 3 min @ 5 m
- NAUI EAN32: 30 min
- RGBM: 30 min, safety stop required: 3 min @ 15 feet, 2nd dive to only 21 m!
Q: decompression obligation scuba 100 feet 60 minute
A:
assume AIR
- DECO 2000: n.a.
- ZH-86: 9 m/3 min, 6 m/13 min, 3 m/35 min
- DCIEM: 30 ft/6 min, 20 ft/9 min, 10 ft/43 min
- USN 2008: 20 ft/81 min
Q: no deco time limit 28% at 130 ft
A:
assume 28% means EAN28
- for e.g. NOAA NITROX 28%: 15 min
- pls. cf. entry #[149], page A-4
- EAD = [ (1 - fO2)/0.79) * (Depth + 33) ] - 33
- or any other AIR table, at EAD = 119 feet
Q: 40 m NDL
A:
assume air, immediate descent
- PADI RDP: 9 min, safety stop required: 3 min @ 5 m
- USN old: 130 feet; 10 min
- USN 2008:130 feet; 10 min
- DCIEM: 39 m: 8 min; 42 m: 7 min
- DECO 2000: 39 m: 9 min; 42 m: 7 min
- RGBM: 10 min, safety stop required: 3 min @ 15 feet
Q: air dive 43 m, 50 minute bottom time, water temperature 11 degree
A: assume 45 m or 150 feet instead of 43 m due to cold water
- PADI RDP: n.a.
- USN old: 150 ft., 50 min; deco stops: 30 ft/12 min, 20 ft/23 min, 10 ft/51 min; TTS = 89 min
- USN 2008: 150 fsw, 50 min; descent rate = 75 fpm/23 m per min; deco stops: 50 ft/3 min, 40 ft/15 min, 30 ft/28 min, 20 ft/170 min; TTS = 220 min
- USN 2008: 150 fsw, 50 min; descent rate = 75 fpm/23 m per min; deco stops: 50 ft/3 min, 40 ft/15 min,
in-water decompression with 100 % O2: 30 ft/15 min, 20 ft/45 min; TTS = 88 min with in-water O2
- DCIEM: 45 m, 50 min; deco stops: 15 m/6 min, 12 m/7 min, 9 m/8 min, 6 m/27 min, 3 m/73 min; TTS = 121 min
- ZH-86: table n.a., ends at 24 min
- DECO 2000: table n.a., ends at 22 min
- ZH-83 (predecessor of ZH-86); 45 m, 50 min; deco stops: 15 m/5 min, 12 m/7 min, 9 m/15 min, 6 m/27 min, 3 m/41 min; TTS = 98 min
- ZH-83 (predecessor of ZH-86); 45 m, 60 min; cold water correction;
deco stops: 18 m/ 2 min, 15 m/6 min, 12 m/12 min, 9 m/20 min, 6 m/29 min, 3 m/50 min; TTS = 121 min
- ZH-86: computer simulation with DIVE V 2_99, 45 m with depth safety factor, 50 min;
deco stops: 18 m/2 min, 15 m/7 min, 12 m/14 min, 9 m/21 min, 6 m/36 min, 3 m/68 min; TTS = 153 min
- DECO 2000: computer simulation with DIVE V 2_99, 45 m, 50 min;
deco stops: 18 m/3 min, 15 m/10 min, 12 m/11 min, 9 m/14 min, 6 m/42 min, 3 m/101 min; TTS = 186 min
Q: 15 mins @ 60 metres air
A:
assume: immediate descent, sea level
- PADI RDP: n.a.
- USN old: 200 ft., 15 min; deco stops: 30 ft/1 min, 20 ft/4 min, 10 ft/10 min; TTS = 19 min
- USN 2008: 200 fsw, 15 min; descent rate = 75 fpm/23 m per min; deco stops: 30 ft/2 min, 20 ft/22 min; TTS = 31 min
- DCIEM: 60 m, 15 min; deco stops: 12 m/5 min, 9 m/6 min, 6 m/8 min, 3 m/16 min; TTS = 35 + 6 min
- ZH-86: 60 m, 15 min; deco stops: 12 m/2 min, 9 m/4 min, 6 m/6 min, 3 m/15 min; TTS = 31 min
- DECO 2000: 60 m, 14 min; deco stops: 15 m/1 min, 12 m/2 min, 9 m/4 min, 6 m/6 min, 3 m/14 min; TTS = 32 min
Q: 20 min @ 60m decompression air
A:
assume: immediate descent, sea level
- PADI RDP: n.a.
- DECO 2000: n.a.
- USN 2008: 200 fsw, 20 min; deco stops: 40 ft/5 min, 30 ft/6 min, 20 ft/43 min; TTS = 61 min
- DCIEM: 60 m, 20 min; deco stops: 15 m/5 min, 12 m/5 min, 9 m/6 min, 6 m/10 min, 3 m/33 min; TTS = 59 + 6 min
- ZH-86: 60 m, 21 min; deco stops: 15 m/3 min, 12 m/4 min, 9 m/6 min, 6 m/11 min, 3 m/28 min; TTS = 52 + 6 min
We are not quite sure, how to answer these ones competently: :-))
--> "german" original:
dekompresionszeit nach tauch ganz bei 60 m
"english" version, correspondingly:
decompresiontime after div whole with 60 m
as well this one:
--> "german" original:
o2 verbrauch empirischer wert fick für berechnung
"english" version, correspondingly:
o2 consumption empirical value fuck für calculation