Engine O.S. – 120AX

Perfect for 3D, precision and sport flying!

It’s the “no mod” way to ratchet up horsepower for more flying fun!
The 120AX fits in the same space as a .91 ?X while boasting 20% more displacement.
That means it can turn bigger props with ease, resulting in improved 3D, precision
and sport flying. Boost your plane’s performance, without compromising weight
or mounting space ?X bolt in a 120AX and see the difference for yourself!

Delivers 20% more power than a .91, and with new CCD technology will bolt right
where the .91 used to be.

At 21 ounces, the 120AX is a very minimal weight increase over a .91.

The new angular head design not only looks great, it significantly increases
surface area for better heat transfer.

Specifications:

• Stock Number: OSMG0650
• Displacement: 1.20 cu in (20 cc)
• Bore: 1.197 in (30.4 mm)
• Stroke: 1.083 in (27.5 mm)
• Practical rpm: 1,800-9,500
• Output: 3.1 hp @ 9,000 rpm
• Weight: 21 oz (650 g)
• Includes: #8 glow plug, 70D dual-needle carburetor, E-5020 Power Box muffler
  w/two adapters
• Recommended Props: 14×10 APC, 15×6 APC