sub escape trainer Navy Diver 2nd Class Frank Phelan instructs students on the training exercises they will be performing during pressurized submarine escape training. Submariner students at Navy Submarine School on Naval Submarine Base New London in Groton, Conn., are taught how to survive during a submarine escape in a two-day class at Momsen Hall. SHARE IMAGE: Download Image: Full Size (2.3 MB) Tags: NMCS, DVIDS Bulk Import, training, divers, groton, submarine escape trainer Photo By: Navy Petty Officer 2nd Class Ignacio D. Perez VIRIN: 160816-N-TC437-0290.JPG Photo Gallery