I have a cruiser friend who has two D400's on a
monohull mounted on poles on each side of the stern. He says he gets a beat frequency
noise from them and that they are always fighting each other from the perspective of both voltage regulation and wind
interference. He mentioned that it may have not been a good idea.
I guess mounting two on
catamaran sterns may mitigate the beat frequency
noise and wind
interference and the regulation problem can be dealt with easily.
However, I would not want to live on, or anywhere near, a
boat with three Air-X. These are as rude of a cruising
boat item as open frame generators left running on
deck all night. Yes, I know I will take flak from that, but I will continue to tilt at that windmill of getting owners to understand they piss everyone else off, even though they have "become accustomed to the noise" or "enjoy knowing when the wind has picked up in the middle of the night" or "that's the sound of free energy" or any other selfish explanation that they give.
Mark