The Parnall Elf is a scaled model of 476 mm wingspan for CO2 or Electric motor and free flight, the Miles Messenger is a scale model of 16" wingspan for rubber motor and free flight and the Slip Slida is an unorthodox catapult glider of 12" wingspan for free flight. This is a double sided and single sided sheet an original plan in new condition, magazine is in good condition with minimal wear. See photograph for detail