General Discussions  
This is the place to discuss general issues related to the U-boat war or the war at sea in WWII. 
Re: underwater navigation into a harbor
Posted by: Steve Messenger ()
Date: July 26, 2014 01:54AM

I would refer to the attack Prein made on Scapa Flow, as a reference. A pre-war knowledge of the harbor, by a member of the crew, would be most helpful.
A knowledge of the Hudson River and tides (high and low) would help.
Depending on the date in 1942, in your novel, black-out conditions may have not been enforced by the government. Lights of the city are helpful in navigation.
Following a freighter's wake could be used to enter the harbor.
The time of year also has an effect on navigation. Winter storms provide a chop to the waves, concealing periscope observations. A calm summer day, with the Hudson River almost as smooth as glass, could reveal a periscope easier.
In a practical sense, a Captain may have better luck, by staying off shore from the harbor and use the city lights as a backdrop illumination for passing freighters.
Probst!

Options: ReplyQuote


Subject Written By Posted
underwater navigation into a harbor markos88 07/24/2014 10:51PM
Re: underwater navigation into a harbor Steve Messenger 07/26/2014 01:54AM
Re: underwater navigation into a harbor markos88 08/11/2014 05:43PM


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.
 **         *******    ******    **    **  ********  
 **        **     **  **    **    **  **   **     ** 
 **               **  **           ****    **     ** 
 **         *******   **   ****     **     **     ** 
 **               **  **    **      **     **     ** 
 **        **     **  **    **      **     **     ** 
 ********   *******    ******       **     ********