The new season of this endlessly popular series takes to the air with the U-2 Dragon Lady – a secret Cold War spy plane with a troublesome crash record; the AV-8B Harrier – the vertical takeoff 'jump-jet' which changed the face of military air combat; and the KC-135 Stratotanker – the gigantic air tanker which travels the world refuelling jets in mid air, at speeds of over 550mph. Strap in, this is an aircraft lover’s dream ticket!