I built my first Landsailer from a crashed hang glider about 30 years ago after seeing Iceboats on a TV commercial. I pretty much thought I was the only one in the world with one. After sailing on a large, empty parking lot a few times a couple of guys with factory-built Mantas showed up and burst my bubble. I've built countless aluminum tube homebuilts and a Mike Hampton Fed 5. Puurchased a US Fed 5, a BloKart a NZ Rocket and a Ludic. I still have the Rocket and Ludic.
