Depth Charge Sink Rates

[Captain Nemo]

Originally Posted by Sailor Steve

I only dive to 70 meters. Even at the faster late-war sink rate it still takes a depth charge 30 seconds to reach that depth.

The quote above posted by Sailor Steve in a another topic got me thinking, are different types of ship dropped depth charges modelled in SH3/GWX or is only one type modelled? Doing some arithmatic, the sink rate quoted by Sailor Steve is 2.33 m/s for the later war depth charge. I think I read here some time ago that the the sink rate is 3 m/s for all ship dropped DC's. Can anyone clarify?

Nemo