Gottfried Fischer (U-505)
Yesterday the echo sounder broke down. Just our luck. Repaired it and fitted new neon lighting-tube. For a few days now we have been "enjoying" the tropical heat. Everybody is perspiring freely. Even in the bunks it takes only a few minutes until everything is soaked wet. From sweat, mind you! Water temperature is 29° C. The temperature inside the boat is 35-40° C. And this is only the beginning. The heat is so intense that I sometimes wish I could shed my skin.
25 April 1944