workBENCH: Interested in giant-scale models? Powered by a gas burning Zenoah G-23, Hangar 9's IMAA legal PT-19 has the hallmarks of being the perfect model for a transition to this demanding branch of the sport. Gasoline, kill switches, servo torque requirements - even their placement - are topics to bring you up to speed on giants. Our modifications to this ARF rendition of Fairchild's superb aircraft mean you can hone both the routines and the flying skills needed to safely participate in this aspect of the sport, while applying the tricks learned, as you work to build the giant-scale model you've always dreamed of!