Legend
So sad to hear the news. What a legend he was.
I remember, having explained some particular element of flight planning, he used to stare at his confused students and tell us that his five year old granddaughter used to leave the answers to these problems on the fridge in the morning!
If one still didn’t get it after another another explanation he would get out his notebook.....ask you who you wanted to fly for....(the student would reply XYZ airline)....and then Len would write down “note to self, never fly with XYZ airline!”
All in good humour of course.