Regarding the post of Darius, I'm not sure German Hs 126 were carrying bombs during their missions, but it may a misprint for Hs 123 (don't remember if some were used during the Greek campaign) or it could be a Greek Hs 126 (some were in service at the start of the Italian-Greek war in 1940, and so may have flown over the frontline this day.
A new case for me, reminding modern computers: when an intelligent weapon just proves dumb...
http://www.royalnavyresearcharchive....CORT/BITER.htm