Herman Michael Tannert, a long-time Lincoln resident, died peacefully at home on July 2 at age 89. Mike was the cherished husband of Joanna Hopkins; father of Michael (now deceased, of South Harwich, MA.); David (of Macerata, Italy) and Kathryn Tannert Niang (of NYC); step-father to Carol Evans Linburn (of San Francisco); and grandfather to five treasured grandchildren. Mike lived a very active life professionally, athletically, and personally. Born in Sydney, New York, he grew up in Middletown, Rhode Island, where he excelled academically, became a crack rifle shot in his high school NROTC program, and played the violin in the RI State Youth Orchestra. He served in the U.S. Navy's Electronics Training Program (the "Eddy Program") Aug.,1945 to July 1946, and then attended Rensselaer Polytechnic Institute, graduating with a B.S. in Electrical Engineering. During the Korean War he joined the Air Force, which sent him to Germany to design and locate the Ground Control Approach radar systems for American pilots flying in the European theater. Back in the U.S., Mike joined GTE (now General Dynamics) as an engineer, eventually becoming Program Manager for large military programs for the U.S. Government in the Communications Systems Division in Needham, MA. Among other programs, he was involved in producing the lighting system for the moon-shot lunar module, the closet-sized mobile communications equipment for field commanders in Desert Storm; and the building of large radar systems for the Middle East. Meanwhile as a hobby, Mike ascended over twenty 4000-meter peaks on mountaineering skis in the Swiss, French and Italian alps with his Swiss guide and dear friend Rony Inderbinen of Zermatt. While savoring both the pleasures and dangers of exploring the high mountains together, they also rescued other climbers. An avid hiker as well as skier, Mike led groups of friends on adventures in the U.S., and over 30 hiking, skiing and cultural excursions with his wife Joanna in Switzerland, Austria, and Germany for the Appalachian Mountain Club. He was a long-time member of both the AMC and the American Alpine Club. Mike was a man of strong ethical values, accomplishments, humor, and passion, as shown in his 2015 memoir "For the Love of Mountains". Donations in Mike's memory may be sent to Alzheimer's Disease Research, 22512 Gateway Center Drive, Clarksburg, MD 20871, or the AMC, 5 Joy St., Boston, MA 02108. A service will be held in the fall.