Are Depth Soundings Accurate?

Dignan · 03-29-11, 06:25 AM

I'm starting to think the depth soundings are not very accurate. Maybe this is on purpose to simulate the innacuracy of the depth sounder.

I did a test dive the other day in 100m of water (according to depth sounding). I set dive for 80m. At about 75m I hear a loud crunch

....my sub hit the bottom. I think the depth readings are actually about 25m more than they really are. Anyone else confirm this?

03-29-11, 06:25 AM	#1
Dignan Seasoned Skipper Join Date: Mar 2008 Posts: 698 Downloads: 262 Uploads: 0	Are Depth Soundings Accurate? I'm starting to think the depth soundings are not very accurate. Maybe this is on purpose to simulate the innacuracy of the depth sounder. I did a test dive the other day in 100m of water (according to depth sounding). I set dive for 80m. At about 75m I hear a loud crunch....my sub hit the bottom. I think the depth readings are actually about 25m more than they really are. Anyone else confirm this?