This week's challenge is to build motorised flame flingers capable of hurling burning projectiles at our shooting gallery of combustible targets. The projectiles are packed with solid rocket fuel burning at 1,000 degrees centigrade, so it's not just the targets that are at risk; the machines are too!
Colin Herriett is a Cornish armourer. He makes and demonstrates authentic medieval weaponry, including cannons and trebuchets, swords and suits of armour. He's a big beardy bloke who's not unlike Brian Blessed. He's appeared on television a number of times for Windfall Films, including Pirates and The Royal Institution Christmas Lectures.
