Technology and Operations
This forum is for discussing technological & operational matters pertaining to U-boats.
Re: Lantern colours?
Posted by:
Vidart
()
Date: November 30, 2008 01:07PM
Hello
I suppose the rules that apply today aren't too much changed from the time of the VIIC's:
A top lantern should give white non-blinking light and should be visible 112.5 degrees to each side from straigt forward to 22.5 degrees abaft the beam.
A stern lantern should give white non-blinking light and should be visible 67.5 degres to each side from straight astern.
The port lantern should give red non-blinking light and should be visible 112.5 degrees from straigt forward to 22.5 degrees abaft the beam. From straight forward also between 1 and 3 degrees with decreasing intensity.
The starboard lantern should give green non-blinking light and should be visible 112.5 degrees from straigt forward to 22.5 degrees abaft the beam. From straight forward also between 1 and 3 degrees with decreasing intensity.
A vessel loger than 50 m should have 2 top lanterns, 1 stern lantern and side lanterns. A vessel shorter than 50 m does not have to use the stern top lantern.
There is a lot of other rules as well, but less important here I believe. When I served on a Kobben Class (length less than 50 m) in 1980, we used a white stern lantern. We mounted a top lantern on the periscope when surfaced during the night, and we had the usual side lanterns.
I hope this helps.
Cheers
Vidar
I suppose the rules that apply today aren't too much changed from the time of the VIIC's:
A top lantern should give white non-blinking light and should be visible 112.5 degrees to each side from straigt forward to 22.5 degrees abaft the beam.
A stern lantern should give white non-blinking light and should be visible 67.5 degres to each side from straight astern.
The port lantern should give red non-blinking light and should be visible 112.5 degrees from straigt forward to 22.5 degrees abaft the beam. From straight forward also between 1 and 3 degrees with decreasing intensity.
The starboard lantern should give green non-blinking light and should be visible 112.5 degrees from straigt forward to 22.5 degrees abaft the beam. From straight forward also between 1 and 3 degrees with decreasing intensity.
A vessel loger than 50 m should have 2 top lanterns, 1 stern lantern and side lanterns. A vessel shorter than 50 m does not have to use the stern top lantern.
There is a lot of other rules as well, but less important here I believe. When I served on a Kobben Class (length less than 50 m) in 1980, we used a white stern lantern. We mounted a top lantern on the periscope when surfaced during the night, and we had the usual side lanterns.
I hope this helps.
Cheers
Vidar
| Subject | Written By | Posted |
|---|---|---|
Lantern colours?
|
Cheradenine | 11/29/2008 11:28PM |
|
Re: Lantern colours?
|
Vidart | 11/30/2008 01:07PM |
|
Re: Lantern colours?
|
Cheradenine | 11/30/2008 09:10PM |
|
Re: Lantern colours?
|
dick | 12/17/2008 07:22PM |