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  • AX55

More muscle for .40 sized airplanes.

Increase displacement in your 40-size model the easy way: just drop in a 55AX engine! You'll enjoy more horsepower for swinging bigger props ™ which means improved 3D, precision and sport flying. Best of all, there's no modifications required!

  • Mounts directly into the bolt pattern for a 46AX.
  • A diagonally-placed needle eliminates the need for a remote needle valve.
  • The 5-sided, angular head design looks great and significantly increases surface area for better cooling.


The Power BoxTM muffler has a generous sized chamber and larger sound baffle to significantly reduce exhaust noise without stealing power. ABL (Advanced Bimetallic Liner) uses two O.S.-developed alloys to provide a durable barrier between the brass liner and piston.

Stock Number:
Displacement: 0.545 cu in (9 cc)
Bore: 0.91 in (23 mm)
Stroke: 0.85 in (21.5 mm)
Practical rpm: 2,000-17,000
Output: 1.68 hp @ 16,000 rpm
    14.29 oz (405 g) w/o muffler
    18.52 oz (525 g) w/ muffler
Includes: #8 glow plug, 40J carburetor, Power Box E-3070 muffler
Recommended Props: 12x7, 12x8, 13x6, 13x7

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  • מותגים O.S Engines
  • קוד מוצר: OSMG0556
  • זמינות: במלאי
  • 750.00₪

  • ללא מע"מ: 641.03₪