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My first ever submarine kit was a Darnell Type XXI, I first saw Ron Perrot's series of articles in the first issues of Marine Modeling. I think it was in the late 80's. Every month a new article on ballast systems, or the few kits that were available. John Darnell had two other neat little systems, one was the automatic periscope, a cork on the bottom end of the periscope, so when the boat was surfaced, the weight of the scope and cork pulled the scope down and off course when the boat submerged, the cork extended or pushed the scope up. This was sometimes refined with a lever or seesaw to push a crew member up through the hatch on the surface and popped him down when diving. His boat locator was neat too, a float held in a recess in the hull held in with soap. If the boat was submerged for a long time, the soap would disolve and release the marker buoy. As usual simple things work best.
So lets not forget the UK pioneers, John Darnell, Ron Perrot and Martin Hartshorn, who's VIIC hull would be the basis of the OTW VIIC. Happy days!
I seemed to build more model before the internet and computers came along??????
OK. I’m quite sure this horse is dead so I guess it’s time to stop flogging it. The bottom line is that there are a variety of different types of ballast systems and the use of each is determined by the guy who’s building/using it. Each has its good points as well as bad points. It’s all a matter of personal preference. Let’s face it, some guys love Fords, some guys love Chevrolets. And some guys love teardrop shaped boats and others love WWII boats. And never the twain shall meet. Get over it.
Now, can we get back to doing whatever it was we were doing?
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