I have found a few movie clips from britishpathe's website.All feature either a glimpse,or a magnificent array of Irvin Flying Jackets being worn.Here are a few links to them,so you can all watch:
http://www.britishpathe.com/record.php?id=22994
http://www.britishpathe.com/record.php?id=22914
http://www.britishpathe.com/record.php?id=54167
http://www.britishpathe.com/record.php?id=22571
http://www.britishpathe.com/record.php?id=22938
