The tragic loss of Robert Kronfeld at Lasham in 1948 is well documented but here are some interesting links G.
the nurflugel one is a gold mine.
http://www.vintagegliderclub.co.uk/vgc_news/bat.htm
http://www.nurflugel.com/nurflugel/nurflugel.html
http://www.froyle.com/oddities.htm
W