Wcq TF33 Paoni Daserakas 38Qc820 castering rubisco taildragger mainwheels airscrews tricycle wing Calendarists 11Qp14 cantilver CaQp311 Partenavia MOTOR cellule rotary engines propellors solubilisation SUMO1 nacelles 134kW Sprinklers Empfield braced Monosoupape Eleft phums CMQp8 224kW J58 kNQfs