Season 3 · Episode 4 — Windmill
The Techno-Teachers go up against The Manic Mechanics to see who can harness the forces of Mother Nature and build a windmill to power a machine crucial to life as we know it — a coffee grinder! One team constructs a conventional fan-bladed windmill, while their opponents go for a vertical-axis Savonious rotor. Quick on-screen sketches reveal which is best for which wind conditions. But a half-hour before the competition, the weather services release a gale warning, forcing one team to clip the blades off their windmill for fear of having them ripped off. But at competition time, the wind doesn't get over 2 miles per hour.
Season 3 episodes
E1The teams each have to build a machine capable of demolishing a set of industrial outbuildings at an old power station in Norwich. Sadly, n…
E2Teams must build a nonpiloted flying vehicle that can accurately drop paint bombs on a target on the ground. Both teams need to go with rad…
E3In this challenge, The N.E.R.D.S. (New England Rubbish Deconstruction Society) — the first American team to compete in the show — take on T…
E4The Techno-Teachers go up against The Manic Mechanics to see who can harness the forces of Mother Nature and build a windmill to power a ma…
E5This time, a team called Filth goes up against the winner of Demolition (Chaos Crew or Beach Boys) to design and build a machine that can t…
E6Brothers in Arms go up against the winner of Bomber (3 Revs a Minute or Mothers of Invention) in a challenge to build a vehicle that can ca…
E7There's an acre of wheat to cut and collect. This semifinal Junkyard challenge sends the competitors down to the farm to see who can build…
E8In the second semifinal match, the challenge is to make a vehicle that drives on steam power. One team finds a weird little three-wheeled c…
E9In the championship match, the two surviving teams see who can build a boat that will go across a lake and put out a fire in a burning buil…
E10Drag racing. Nothing gets a Junkyard Warrior's blood stirring like sheer speed. In this special match-up, the Season 3 champs go up against…
E11