The Milkman
11-23-07, 10:16 PM
"The VIIC/41 model had a weight saving of 11.5 tons over the C model, and this was used to increase the thickness of the pressure hull from 18.5mm to 21mm. This increased the normal depth rating from 150 to 180 metres and the failure depth from 250 to 300 metres.
The VIIC/42 was never produced. This planned variant was to have extra power and a top speed of 18.6 knots. It was to have a heavier displacement - 999 tons surfaced/1,099 tons submerged - and a thicker pressure hull. Normal depth rating would have been 300 metres, and the failure depth would have been 500 metres. The VIIC/43 was to have been even more capable, but it too was never produced."
http://www.u47.org/english/u47_boa.asp?part=6
I never knew that those boats were planned to go that deep.
The VIIC/42 was never produced. This planned variant was to have extra power and a top speed of 18.6 knots. It was to have a heavier displacement - 999 tons surfaced/1,099 tons submerged - and a thicker pressure hull. Normal depth rating would have been 300 metres, and the failure depth would have been 500 metres. The VIIC/43 was to have been even more capable, but it too was never produced."
http://www.u47.org/english/u47_boa.asp?part=6
I never knew that those boats were planned to go that deep.