: To evade Allied naval patrols, U-977 stayed continuously submerged for 66 days using its newly fitted schnorkel (air intake mast).
The journey is best known for its incredible endurance phase: U-Boat 977.The U-Boat That Escaped to Argentina
: The crew endured constant diesel fumes, fluctuating air pressure, and extreme humidity, which brought many to the brink of nervous breakdowns. : To evade Allied naval patrols, U-977 stayed
: After surfacing near the West African coast and crossing the equator in late July, the submarine finally surrendered at Mar del Plata , Argentina, on August 17, 1945. Controversy and "The Hitler Myth" U-boat 977: Heinz Schaeffer: Amazon.com: Books : To evade Allied naval patrols