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Here's one of my favorite RC sub videos on YouTube.
during the submerged run as the sub is moving towards the camera you can hear a clunking sound just like an old truck. I just wondering what's making that sound, is it the prop (so called blade rate ) or just the reduction gear?
during the submerged run as the sub is moving towards the camera you can hear a clunking sound just like an old truck. I just wondering what's making that sound, is it the prop (so called blade rate ) or just the reduction gear?