I am a Historical Interpreter at Fort Miles Museum at Cape Henlopen State Park in Delaware. Just to be certain that everyone understands, none of the towers here at Fort Miles, and not at any other WWII coastal defense fortifications, were used to spot submarines. This is an impossibility and would have been like looking for a broom handle popping out of the ocean. We educate the public on this by explaining that these towers are formally known as "Fire Control Towers" because they direct the fire of the guns onto surface ships. So, the guns and the towers were for spotting and directing fire on surface ships only. It is still a very wide-spread, pernicious, historical myth that these towers were used to spot submarines. They were not. Please spread the word.
Thanks,
Mike
michael.podgorski@delaware.gov