120AX Special

"Special" features give this 120AX even more power!

Experience up to 8% more power in the same displacement with the 120AX Special!

velocity stack
The velocity stack installed on the carburetor intake as standard contributes further acceleration at high RPM.
Additional machining
Additional machining, approx. 1mm deeper is done to enlarge the intake port. The new port timing contributes higher RPM.
0.1mm thick head gasket
0.1mm thick head gasket is employed to increase the compression ratio which contributes power increase at high RPM.
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Stock Number: OSMG0652
Displacement: 1.218 cu in (19.96 cc)
Bore: 1.197 in (30.4 mm)
Stroke: 1.083 in (27.5 mm)
Practical rpm: 1,800-9,500
Output: 3.3 hp @ 9,500 rpm
Includes: #8 glow plug, 70D carburetor
Recommended Props: 15x10-12 or 16x8-10
 

Primary Accessories

Stock Number Mfr Number Product Description Quantity Needed
 APCQ1512   LP15012  APC 15x12 Pattern Propeller 1
 GPMQ4131   GPMQ4131  Great Planes Silicone Fuel Tubing Standard 3' 1
 GPMQ4150   GPMQ4150  Great Planes Ultra Precision Fuel Filter 1
 OSMG2845   29122500  O.S. Muffler Power Box 120AX 1

Field Equipment

Stock Number Mfr Number Product Description Quantity Needed
 GPMP2012   GPMP2012  Great Planes Standard ProGlo Starter w/Charger 1
 PAAP1453   PT31  Pacer Zap After-Run Engine Oil 1 oz 1

Optional Accessories

Stock Number Mfr Number Product Description Quantity Needed
 APCQ1608   LP16080  APC 16x8 Pattern Propeller 1
 APCQ1610   LP16010  APC 16x10 Pattern Propeller 1
 MASQ1166   MA1680B  Master Airscrew 16x8 Beechwood Propeller 1
 XOAQ1608   PJA16X8  Xoar Props 16x8 PJA Series Beechwood Propeller 1
 ZINQ1350   903  Zinger 15x10 Wood Propeller 1