Specification:
- Displacement: 1.60 (26 cc)
- Bore: 1.32 (33.6 mm)
- Stroke: 1.16 (29.6 mm)
- Practical rpm: 1,800-10,000
- Output: 3.7 @ 9,000
- Weight: 32.6 (925 g)
- Recommended prop sizes: Aerobatic: 15x12-14, 16x10-14, 16.5x10-13
Sport: 17x10-13, 18x10-12

The state-of-the-art in sport/competition engines!

• All FX engines come with remote needle valve - the feature most asked for!
• A longer crankshaft provides more secure attachment for spinner, prop and nut
• Dual ball bearing construction adds durability and longevity
• Semi-square head shape creates more fin area to increase cooling capacity
• Each engine comes with a high-performance carburetor and muffler with adjustable exhaust direction and built-in pressure tap
• 61FX and 91FX feature a remote needle valve that can be positioned two ways, to help you avoid cowl modification and preserve your plane's scale lines; 160 FX remote needle can be mounted three ways