Anyhow here's how it worked:
There were a series of cannons/mortars mounted on a ship (usually a merchant), each mortar had about 50 to 100 or so feet of cable coiled up inside of it. Now when a German plane came in to bomb the ship, the lower the plane was the better chance it had to hit the ship, so when the plane was at it's lowest and closest to the ship somebody would activate this system which would fire all of the mortars at once and thus send up a sheet of cables that the plane would have to fly through. Now as we all now an Iron cable wrapped up in a propeller will really ruin a bombers day. >:(
The end result was that word got around, and since no pilot really wanted to have to fly into this veritable wall o' steel they were forced to drop their bombs from a height out of range of the system, thus greatly reducing their accuracy and reducing losses on merchant shipping due to air attacks.
So the question I'm asking is, Am I on crack here?