The information on this page was taken from "The World Book Encyclopedia, @ 1962". The records are out of date, but they give an idea of what the gang would be wearing at the various depths. ---ki (XMP)

Diving Records-depths are in feet and the date is when the record was set

Skin diving (no air supply) -- 127.95 (1956)

Helmet diving (breathing air) -- 304 (1915)

SCUBA (breathing air) -- 328 (1957)

Articulated diving bell -- 400 (1930)

Helmet Diving (breathing oxy-helium mix) -- 600 (1956)

Bathysphere -- 3600 (1934)

Benthascope -- 4500 (1949)

Bathyscaphe -- 35800 (1960, Nota Bene: this record was set in the Mariana Trench)

Average Temperatures

depth (ft) --- temp (F)

600 -------- 60.7 (plus/ minus 56 degrees)

1200 -------- 50.1

1800 -------- 44.7

2400 -------- 41.8

3000 -------- 40.1 (+/- 22 degrees)

3600 -------- 39.1

5400 -------- 36.8 (+/- 15 degrees)

7200 -------- 35.8

9000 -------- 35.3 (+/- 7 degrees)

12000 ------- 35.2

Pressure - Pressure increases one ton per square inch for every mile below the surface. 35,640 ft is the deepest known point in the ocean.