Actually i used the plans above for making these 1/32 plans.
The mesurments of this PVC pipe 125 mm,i will use this for making my WTC.
This the new Revell IX-C/40 scale 1/72 comes out in November 2015,
and i am very happy with it.
These four pictures below where taken at the Nürmberg Toyfair,
i believe it was in 2015.
Here are some real pictures of the U-Boats that actually had a schnelltauchback.
U-190 without athe schnelltauchback.
No picture of her bow with a STB.
According to Axel Niestlé,she had an STB.