Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
Re: Torpedo and torpedo tube dimensions
Posted by: Dan Odenweller ()
Date: November 13, 2003 02:36PM

Generally speaking, the mminimum torpedo tube length is set by the weapon, the actual tube length by the layout of the tube in the boat.



An excellent reference for USN fleet boats can be found at:

[www.maritime.org]



and on pages 18 and 19 we find:

"finish the tube to the diameter of 21.125 inches,"

and

" torpedo tubes are of two lengths, bow tubes being 252 inches, stern tubes 276 inches, over all length, not including doors. The effective length (the greatest length of the torpedoes that can be loaded into the barrel) for a barrel 252 inches over-all would be 250.81 inches; for a barrel 276 inches over-all, the effective length would be 274.81 inches"

on page 124 we find that:

"Torpedoes are divided into three groups according to the location of the guide stud, the distances from the tail to the front of the guide stud being 109.0 inches, 141.44 inches, or 150.44 inches, depending upon the length of the torpedo,"

and

"The torpedo tubes described in this pamphlet were designed primarily for the Mark 14 torpedo, which has the front of the guide stud 141.44 inches from the end of the tail, hence they will accommodate such torpedoes without any adjustment or alteration of either the tube or the torpedo. The length of this torpedo has been increased to 246.0 inches, but this increase in length does not in any way affect the operation of the torpedo tube."


Seems like some definitive answers on German tubes and fish were provided, in metric units. Conversions to English units and rounding errors may explain the confusion. Thus:

53.46cm / 2.54 cm/in = 21.047 inches - rounded to 21 inch, and then back

21 inch * 2.54 cm/in = 53.34 cm - rounded to 53.3 cm


Dan

Options: ReplyQuote


Subject Written By Posted
Torpedo and torpedo tube dimensions ROBERT M. 11/04/2003 05:30AM
Re: Torpedo and torpedo tube dimensions Ken Dunn 11/04/2003 11:38AM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/05/2003 04:24AM
Re: Torpedo and torpedo tube dimensions ryan 11/06/2003 12:03AM
Re: Torpedo and torpedo tube dimensions J.T. McDaniel 11/06/2003 01:16AM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/06/2003 07:45AM
Re: Torpedo and torpedo tube dimensions Rainer Bruns 11/06/2003 03:17AM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/06/2003 07:01AM
Re: Torpedo and torpedo tube dimensions Maciej Trybus 11/06/2003 08:03PM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/07/2003 04:30AM
Re: Torpedo and torpedo tube dimensions Maciej Trybus 11/11/2003 09:11AM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/12/2003 06:17AM
Re: Torpedo and torpedo tube dimensions Ken Dunn 11/12/2003 12:32PM
Re: Torpedo and torpedo tube dimensions Natter 08/28/2011 03:56PM
Re: Torpedo and torpedo tube dimensions Natter 08/28/2011 03:58PM
Re: Torpedo and torpedo tube dimensions Maciej Trybus 11/06/2003 08:27PM
Re: Torpedo and torpedo tube dimensions Natter 08/28/2011 04:03PM
errors due to metric-inch conversion? Ingo 11/10/2003 08:58AM
Re: errors due to metric-inch conversion? ROBERT M. 11/10/2003 03:15PM
Re: Torpedo and torpedo tube dimensions Dan Odenweller 11/13/2003 02:36PM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/15/2003 04:12AM
Re: Torpedo and torpedo tube dimensions Dan Odenweller 11/15/2003 04:54AM
Re: Torpedo and torpedo tube dimensions ROBERT M. 11/15/2003 07:29PM
Re: Torpedo and torpedo tube dimensions Dan Odenweller 12/12/2003 11:46PM
Re: Torpedo and torpedo tube dimensions ROBERT M. 12/13/2003 03:29AM
Re: Torpedo and torpedo tube dimensions Dan Odenweller 12/13/2003 05:07AM
Re: Torpedo and torpedo tube dimensions Dan Odenweller 12/15/2003 02:08PM
Re: Torpedo and torpedo tube dimensions. ROBERT M. 12/15/2003 09:09PM
Re: Torpedo and torpedo tube dimensions. Dan Odenweller 12/20/2003 12:08AM
Re: Torpedo and torpedo tube dimensions. Natter 08/28/2011 04:19PM


Your Name: 
Your Email: 
Subject: 
Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically.
 ********   ******   **    **  **    **  ******** 
 **        **    **  ***   **  ***   **  **       
 **        **        ****  **  ****  **  **       
 ******    **        ** ** **  ** ** **  ******   
 **        **        **  ****  **  ****  **       
 **        **    **  **   ***  **   ***  **       
 ********   ******   **    **  **    **  ********