There was a gentleman Floyd Cramer in my area that was a customer at the hobby shop I worked at, who was a master machinist and built several of his own radial engines and powered large R/C biplanes with them. We discussed the Morton engines and he told me that there was a problem with the gearing on the valve train. He had the factory drawings and combined with his own experience and knowledge was going to build up a better working copy of the Morton and was going to use off the hook R/C car spur gears for the valve train. Easier and quicker than hobbing your own gears! I believe he said the Morton was a scaled down Kinner, and it does kind of resemble one. He build his own scaled down Kinner to power a Kinner Sport biplane that was just down right awesome! Floyd also built the first working Wankel rotary model engine. Some doubted his claim of being the first and pointed out that Graupner put out a Wankel engine, but Floyd had submitted photos and a description of his engine to American Aircraft Modeler magazine a few years before that to prove it. I don't think Floyd is still with us, and I wonder what happened to his collection of stuff if he has passed on.
Type at you later,
Dan McEntee