Rate of Descent

captainprid · 03-31-10, 06:29 AM

Does anyone know the true rate of descent, I seem to be able to dive very fast from a periscope depth position when I am going 1/3 ahead

Catfish · 03-31-10, 07:06 AM

Hello,
the boats were able to dive very fast, in case they flooded additional "cells", even at low speeds - but they would then need pressured air, to bail (right expression?) those flooded cells again, at the desired depth.

So if you lose more pressured air after a fast dive, than as if you are going deeper dynamically through propulsion and rudder alone, i guess that should be ok.

Greetings,
Catfish

captainprid · 03-31-10, 07:25 AM

Cool thanks for that!!

johan_d · 03-31-10, 02:49 PM

To me it looks rather fast going from periscope depth to surface, or from 20 meters to surface.. faster then we got used to in GWX!

captainprid · 03-31-10, 05:25 PM

My thoughts too. I liked the suspense in GWX wondering if you could get down or to the surface in time to engage or hide

mookiemookie · 04-02-10, 08:54 AM

Sorry to necro this thread, but I just ran across this:

Quote:

Statements by various prisoners indicated that it is considered quite normal for a U-Boat to crash-dive to the usual 30 metres (98 ft.) in 28 seconds or less. One man said that "U 660" could reach this depth in 24 seconds, but others did not confirm this.

From an interrogation of prisoners from U-660.

03-31-10, 06:29 AM	#1
captainprid Watch Officer Join Date: Jul 2007 Location: Blackpool, England Posts: 347 Downloads: 23 Uploads: 0	Rate of Descent Does anyone know the true rate of descent, I seem to be able to dive very fast from a periscope depth position when I am going 1/3 ahead

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03-31-10, 07:06 AM	#2
Catfish Dipped Squirrel Operative Join Date: Sep 2001 Location: ..where the ocean meets the sky Posts: 17,766 Downloads: 38 Uploads: 0	Hello, the boats were able to dive very fast, in case they flooded additional "cells", even at low speeds - but they would then need pressured air, to bail (right expression?) those flooded cells again, at the desired depth. So if you lose more pressured air after a fast dive, than as if you are going deeper dynamically through propulsion and rudder alone, i guess that should be ok. Greetings, Catfish

03-31-10, 07:25 AM	#3
captainprid Watch Officer Join Date: Jul 2007 Location: Blackpool, England Posts: 347 Downloads: 23 Uploads: 0	Cool thanks for that!!

03-31-10, 02:49 PM	#4
johan_d Samurai Navy Join Date: Jul 2006 Location: The Netherlands Posts: 556 Downloads: 113 Uploads: 1	To me it looks rather fast going from periscope depth to surface, or from 20 meters to surface.. faster then we got used to in GWX!

03-31-10, 05:25 PM	#5
captainprid Watch Officer Join Date: Jul 2007 Location: Blackpool, England Posts: 347 Downloads: 23 Uploads: 0	My thoughts too. I liked the suspense in GWX wondering if you could get down or to the surface in time to engage or hide