A hovercraft is a platform supported by a cushion of air. A blower forces air down & under the platform. A skirt traps the air under the platform for optimum floatability. A second engine will power a propeller which will provide the drive force to make the hovercraft go forward. The crucial systems will be the skirt and the propeller. The skirt needs to be relatively airtight & the corners must be attached in an S shape to trap the air. The propeller must be facing the proper direction or else it will spin but not push the hovercraft along.

Bothe teams are building essentially the same machine. The only difference being the Scrap Daddies are using 2 engines (one for their blower and one to propel them foreward) while the Long Brothers are using a single engine to divert 1/3 of their air under the platform and 2/3 of the air out the back for motion.

Helping the Texas Scrap Daddies is Terry Chapman	Here to lend a hand to the Long Brothers is Bob Wind
The Long Brothers will use this shroud from a jet engine to divert some air down and some out the back	Two working engines. As most of you know, this is the most important thing.
Our judge is Chris Fitzgerald	That lightwieght material will make the perfect skirt
The Scrap Daddies work away on their support frame	This is how the corners must be connected to keep the air trapped
Did you remember to thread the needle?	That shroud needs to go on a major diet and fast!
By turning the welder to full power, the tip slices through the aluminum at 10,000 dergees	In the single most amazing thing of any series, the Scrap Daddies' expert makes a propeller when they can't find one
The Scrap Daddies inspect the top deck of their hovercraft	George informs the teams that their construction time is over