Equipment on our CR 400DS sailing yacht -- Sailing yacht CR 400DS pilothouse equipment: Note: Equipment mentioned on our site or installed on our sailing yacht does not automatically indicate it is either a good product or endorsed by The Mad Dogs! Interphase Forward Looking Sonar The Mad Dogs have equipped the sailboat Mad Dog Voyager with dual Color Twinscope stations; one inside at the Navigation Station and one outside in the cockpit. The SE-200B Color Twinscope Forward Looking Sonar by Interphase operates like an underwater radar. The color display shows a graphical representation of what it “sees” underwater, using color to indicate the strength or solidness of the object reflecting the sonar signal. A moving beam, electronically controlled inside of the underwater transducer, sends a 90 degree arc sweeping in front of our sailboat or from side to side. When in Vertical mode, the beam is projected and sweeps from straight ahead to directly beneath our boat, displaying an underwater sonar image of everything that it encounters.   This is very useful for determining the shoaling edge of the shoreline, locating underwater projections, rocks, etc. We haven’t found any sunken treasures with it yet, but we are always hopeful… In Horizontal mode, the Interphase transducer sends a 12 degree beam sweeping from side to side showing us what it encounters in a 90 degree sector directly ahead and to the sides of the boat. Horizontal mode is excellent for navigation skinny passes, narrows, etc. Although we have had to send one of the units back to Interphase for repairs on two occasions and have sent the other unit back once for repairs, it is an instrument we would not sail in shallow waters without. The potential to navigate areas that are poorly charted or have questionable depths has greatly extended our ability to explore new and interesting locations that would have otherwise been unreachable. Traveling the oceans with forward looking Sonar On ocean going trips the unit will also alert of potential dangers in the water including shipping containers that have been lost by containerships. The Mad Dogs Exploring to inspire www.TheMadDogs.com