I've had my PPL for many years, flown various airplanes, most of my training was in a 152. Now i'm interested in buying an ultralight because of the cost and lack of red tape. I am looking at either a Challenger single, or an Aerolite 103. What i would like, is to hear a detailed, step by step description of a little flight in either one of those aircraft, or maybe a similiar type. I'm just trying to figure out what the main differences are between a 152 and a UL when it comes to actually taking to the sky with one. Also, i heard that a 4 stroke will be an available option for the Aerolite in about a year.. has anyone heard anything about this? I'd rather go with a 4 stroke if at all possible, but if not, has anyone had good/bad experiences with the F33? Any information will be greatly appreciated!