Comedy actor and car fanatic Chris Barrie explores the development of truck engines. He examines 19th-century steam-powered machines and the advent of diesel in the 1930s, before turning his attention to Europe's largest modern vehicle - the Caterpillar 789. This monster has a capacity of 69-litre engine and 16 cylinders
The presenter explores the history of airships, from the early hot-air balloons of the Montgolfier Brothers, to the ill-fated transatlantic passenger liners of the 1930s. He also visits the historic hangars at Cardington, where he takes a ride on a sky hopper. Plus, a look at the Zeppelin company, examining its early bombers and new prototype cargo carrier