The Henlow instructor was Rob Legg, he formated alongside a Robin? whose pilot had collapsed and the non pilot passenger managed to get out a radio call, Rob talked him down and although the a/c ran off the runway there was little or no damage, a local radio enthusiast heard and recorded the event which got into the public domain and the BBC featured it in I believe the first episode of the 999 series. Rob was honoured for his actions by GAPAN in 1991. He was a popular instructor at Henlow.