I've read many books about the Skunkworks etc and never heard mention of a KWM-1 on the U-2 but sure enough it appears in the U-2 manual. http://www.dailymail.co.uk/news/article-2259423/The-child-like-cartoons-helped-pilots-fly-secret-U-2-spy-planes-Soviet-Union-height-Cold-War.html Tom