You can see my drawing of the
Alberich tile here:
http://en.wikipedia.org/wiki/Anechoic_tile
Free-Flooding Vent Patterns
Free-Flooding Vent Patterns for
U-1105,
U-1106,
U-1107,
U-1304,
U-1306 and
U-1308 (or Type VIIC/41's with the
Alberich coating).
Below are the Free-Flooding vent patterns for the U-boats above. The vent patterns are base on photographs of
U-1105. In the images below, they display the standard Free-Flooding vent patterns for a Type VIIC’s (bottom drawings) and the new layout for boats with the
Alberich coating (top drawings). The German’s made the vents bigger, and had fewer of them for boats with
Alberich coating.
Stern Vents
Bow Vents
Diesel air inlet vents on the main bridge casting.
Fig. 1. The standard diesel air inlet vents on the main bridge casting for Type VIIC/41’s.
Fig. 2. The shape and size of the diesel air inlet vents on the main bridge casting for Type VIIC/41’s with the Alberich coating.
If you need any more information on this let me know, happy to help.
Simon