A friend of my built one, it was a 2 seater. about 25000.00 dollars. it would cruise about 85mph. Had a enclosed cabin with a rear engine. After he got it all built he had it out at the local airport,and was making practice runs down the run way. At about 40 miles per hour it lifted off the ground an he was just watching it climb till it staled out when he lost air speed it went into a dive. By the time he figured what was wrong he put the power to it, it was to late. He bounced it off the ground three times, the first bounce he went up over a hundred feet in the air, the other two wiped out his landing gear. By the time it was over he had totally ruined a pretty little plane. One wing, the main air frame was bent, the brand Rotex engine had a prop strike with the frame. The landing gear which was designed to fold up or I would call crushed on a hard impact. He walked away from it with a swollen foot and a lower back pain for months. To this day that ultra light or sport plane is in his back yard. I have tried many times to talk him out of the motor, he want give me a price on it. He says it was totally his mistake, when he went to Florida to the factory and test flew them you take off at full power. He had it less than half when it lifted off the ground. He is lucky to be a live. But I still would like to have one.