Dive Tables

[LynnhavenDiver]

I'm currently working on the book for my SSI Open Water classes. They told me to get it done at home so thats what I'm doing. I had a question about some dive table exercises. I just need some people that are familiar with dive tables to check my work.

1. a.)Suppose you make a dive to 51 feet (15.5 metres) for 31 minutes. What is your group designation?
My answer: G
b.) After a surface interval of one hour, what is your new group deisgnation?
My answer: F
2. a.)Using your nrw group designation from question 1, suppose you want to make a second dive to a dept of 40 feet (12 metres). What is your adjusted no-decompression time limit?
My answer: 69 minutes
b.)What is your residual time (RT)?
My answer: 61 minutes


Thank You,
Brandon

 

[Jason Ooi]

welcome to scuba board
Did your instructor teach you how to use the dive table? self study is good start but dive table is complex need instructor brief by each terms and standard rules.:huh:

I'm currently working on the book for my SSI Open Water classes. They told me to get it done at home so thats what I'm doing. I had a question about some dive table exercises. I just need some people that are familiar with dive tables to check my work.

1. a.)Suppose you make a dive to 51 feet (15.5 metres) for 31 minutes. What is your group designation?
My answer: G
b.) After a surface interval of one hour, what is your new group deisgnation?
My answer: F
2. a.)Using your nrw group designation from question 1, suppose you want to make a second dive to a dept of 40 feet (12 metres). What is your adjusted no-decompression time limit?
My answer: 69 minutes
b.)What is your residual time (RT)?
My answer: 61 minutes

 

[LynnhavenDiver]

I haven't started my class yet. I was just trying to figure out whether I'm using the tables right or not. I start my open water class on march 3rd.

 

[Jason Ooi]

Hi,
Dive table is more complex need Instructor to brief.:05:

I haven't started my class yet. I was just trying to figure out whether I'm using the tables right or not. I start my open water class on march 3rd.

 

[LynnhavenDiver]

March 3rd

 

[H2Andy]

yup... you are correct

you correctly adjusted upwards when faced with an in-between depth/time

 

[LynnhavenDiver]

Thanks, H2Andy. That will give me a little bit of reassurance when i start class in a couple of weeks.

 

[Rick Inman]

Learning the tables before class is a good idea. It's easy and doesn't require an instructor. Here's some good down-loadable software to teach you, test you and check your work. It's got all the tables, including SSI. And it's free!

http://scuba.about.com/gi/dynamic/offsite.htm?site=http://www.flash.net/~table/table

 

[Ron Brandt]

Learning the tables before class is a good idea. It's easy and doesn't require an instructor. Here's some good down-loadable software to teach you, test you and check your work. It's got all the tables, including SSI. And it's free!

http://scuba.about.com/gi/dynamic/offsite.htm?site=http://www.flash.net/~table/table

I believe Larry at Scuba Toys wrote that.

Mention you are a Scuba Board Member and get a discount.

www.scubatoys.com

This is one great program and I used it to study for my instructors course.

Ron

 

[Scuba Brad]

Ron we do the same thing..........just memtion Scuba Board and we'll take care of you.

Happy Diving