Been there, done that...
... and lived to talk about it, even. While cruising into Eastern Bay in the Chesapeake, trying to put in to St. Michaels on Memorial Day weekend. We encountered a fog bank that dropped visibility to just about twice our waterline length. First operation was to drop and furl sails, start auxillary, idle slowly forward. The GPS at the helm was not acquiring a consistent signal, but we had a chart plotter below at the helm station. We donned life vests and whistles, an MOB strobe, got out the ditch bag, readied the EPIRB, and grabbed an air horn as well as an old fashioned mouth type horn that was my granddads. The boat was equipped with a bell and electric horn at the helm. I blasted fog signals at regular intervals from the bow with the mouth horn. The boat was also equipped with the cylinder type radar reflectors hoisted on pennant halyards whenever at sail.Oh, I forgot to mention that we were in the middle of the return leg of the Annapolis to St. Michaels regatta! Fortunately, we were headed up wind and many boats in the regatta were flying brightly colored spinnakers as they passed in the opposite direction! Boy, is a white hull and white sail hard to see verses a colored spinnaker or hull! Note to self- get hull painted bright red!I posted my wife at the helm with a small handheld radio, her best girlfriend at the nav station with a radio as well, and myself at the bow of the boat with a strobe, horn, whistle, flashlight, handheld radio, a handheld bearing compass and a flare gun. (good thing i did not fall overboard with all that gear in my pockets and around my neck). I was tethered to the jib halyard with a harness just in case I lost my footing. The purpose of me at the bow was to increase the visibility distance between our vessel and any approaching vessels or obstructions. We were sailing a 42 footer without radar and only had 80 to 100 feet of visibility. From the bow to the helm we lost at least 30 feet of visibility just due to boat length.The person at the nav station was working with paper charts, a chart plotting GPS and a cruising guide to identify waypoints as they approached. They would call out the way point or obstruction and it's approximately distance and bearing as it approached over the handheld, I would report back when I saw it come into view and the actual bearing and distance. The helmsman would hear this and was able to adjust heading if needed. When another boat became visible to the bowman, I would report it's heading and position to the helmsman, along with any course change needed. The helmsman was reading the depth guage and knotmeter readings to the nav station at periodic intervals to ensure that they were in keeping with the charts amd chartplotter info., and then she recorded them on paper and then plotted approximate position on the paper chart. There was no yelling! No panic! Just a little cautious banter as postion changes, depth readings and boat sitings were observed and passed on via the handheld radios.By the way, these are those inexpensive little Motorola radios that are available at any department store or marine supply store. We use them for anchoring and docking to eliminate the need to yell. That is the one thing I have learned from sailing with two women crewman frequently - NO YELLING!We made it safely to the harbor through some very heavy traffic, docked safely at our prearranged location, stepped ashore for a fine meal and enjoyed reliving the excitement of the day over cocktails and dinner. My treat of course for a much deserving crew!