O.S. leads the way in advanced 4-stroke engine technology, and you’ll see for yourself when you mount the FSa-72II in your model! Sport flyers will enjoy greater performance, while scale pilots will experience more realistic flight. Plus, everyone will benefit from the FSa-72II’s deep, rich sound. Tighter tolerances and updated engineering reduce maintenance and ease set-up.
Prop Range 12x7-8 - 14 x 6-7
RPM Range 2,400 - 12,000 rpm
Engine (Only) Weight 476 g)
Displacement 0.719 cu in (11.79cc)
Bore 1.063" (27mm)
Power Type Glow
Plug Type O.S. type F
Stroke 0.811 in (20.6 mm)
Muffler Weight 54g
