In January 1946, Swiss glider pilot Siegbert Maurer attempted to break a glider rekord. On the Albis Pass, across lake Zürich from our club, he started his Moswey III in sub-zero temperatures and with a strong northern wind (Bise). The aim was to stay airborne for more than 28 hours and 7 minutes. Staying airborne in a glider for a long time wasn’t uncommon in this days. Trying to do so in the midst of a cold winter was. Unfortunately he was forced to land after “only” 17 hours, in the early morning of Wednesday 16 January. It wasn’t the performance of his glider that forced him to land, but his fear for serious injury after his legs started showing signs of frostbite.
There’s a nice article on this attempt, including some cool Moswey III pictures, in the Neue Zürcher Zeitung. Unfortunately only in German and you need to register to get access. But worth a read.