120AX  | Specification:
- 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: 14x10 APC, 15x6 APC
| 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 — 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 — 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.
|
 With the 120AX and .91 side by side, you can see how they're virtually identical in size — but you'll enjoy a big difference in performance! |  With the 120AX, there's no need to buy an expensive aftermarket muffler! The included Power Box™ muffler comes with two adapters — one of which turns the muffler 90° to become a "Pitts style." | | |
Engines 
