Sean Feast is a PR consultant and military aviation historian, and is the man behind the book 'A Thunder Bird in Bomber Command' - the story of Lionel Anderson's life and death in the second world war.

Lionel inspired his younger brother Gerry to create Thunderbirds, and many of your favourite hero characters like Scott Tracy, Steve Zodiac, Mike Mercury and Troy Tempest.

This episode is a fascinating and highly personal insight into a little-discussed influence in Gerry Anderson's life - and arguably one of the most important.

No news this week, one listener email, and an excellent Randomiser to finish off 2018. Happy new year to all of our wonderful listeners!