Hot news from Engine Clinic columnist Clarence Lee: we've just received word that O.S. has a new 3ci, 4-cylinder, inline 4-stroke engine under development: the IL-300. Three prototypes have been built and the engine is scheduled for release in July 06, to commemorate the 70th anniversary of O.S. Engines. Specs include a 25.8mm bore, 24mm stroke and 50.2cc displacement (.306.2ci). Not exactly a lightweight, the engine weighs a tad over 5 pounds and swings props in the 18x8 to 20x10 range.
It’s an icon at airshows around the world and Performance Series engineering is sure to make this ARF replica of the Extra 330S a popular modeler at the flying field! Adventurous pilots eager to “step up” to a large, 3d-capable model will find that it’s easy to execute any extreme maneuver imaginable – and […]