Mention a partwork publication on any forum and within 3 replies, an “expert” will tell you that the things never complete their run and that no-one ever builds the models.
This will of course be based on absolutely no facts, but it won't stop them.
Well, just to prove the experts wrong, here's my dad's Bismark hull on the water a couple of days ago. Made from the “Build the Bismark” partwork that was out a few years ago, we've finally got paint on and gubbins in.
Progress has been intermittent as he's done other things along the way. Work takes place in fits and starts and there is more than you see here with most of the superstructure assembled and in boxes.
Anyway, the hulls is leak free and sails very nicely. Top speed is slightly higher than scale but not much. Quite a bit of lead was required to get the buoyant hull near waterline – a pound in the back and more in the front, with more to come when the model is ready for final weighting.
Steering is good with a reasonably tight turning circle of between 6 and 10 feet. Even at full lock, the narrow hull doesn't heel over much, although I'm sure this will change a bit once the upperworks are on.