Short flight with B engine t' gauge wind. Landed on roof o' school, me bucko, but someone helped get it down. "ERR" when measurin' speed and height. Blimey! Blimey! High powered launch. Landed in a backyard. Begad! Blimey! Rocket body landed on t' roof and got stuck in a gutter. Unable t' find nosecone. Low powered flight with video camera in t' body. Two misfires with igniter before successful launch.