the shape of those torpedoes was okay really, but I soon discovered I would probably be unable to drill some evenly spaced holes at the 2/3 of the length of the thing.
But well I had foressen this and prepared some PE ring (soldered of course) beforehand. So I had to destry the shape in order to insert those metal rings.. and then to cover the parts with a fresh layer of Magic Sculp. I let dry and then sanded again.. Then I drilled a few holes around the tail of each of my 3 torpedoes and proceeded to glue each and every blade of the propeller. Finally I glued in place all the tail bits.. Now I have to sand an extra bit where the superglue overflowed -and I also have to add quite a few details