This is the GT33 Gasoline Aircraft Engine with Muffler and Rear Carburetor
                              from O.S. Engines.

FEATURES: Electronic ignition accepts LiFe, LiPo, NiCd and NiMH power and also
            offers low voltage warning
          Rear mounted Walbro carburetor-NOTE the choke valve rod shown on
            page 12 of the manual is not included
          Pitts style E-5030 aluminum muffler black in color, 5dB lower in
            noise than the competition
          Two year limited warranty through Hobby Services beginning at date of
            purchase

INCLUDES: GT33 Gasoline Aircraft Engine with Muffler, Carburetor, CM-6 Spark
            Plug and Instruction Manual

REQUIRES: 2-cycle oil, see SPECS
          Ignition Battery: 4.8-6.0V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack
            LiPo battery requires voltage regulator
          Propeller: 18x10-12, 19x10, 20x8-10, use 18x8 prop for break-in
          Mounting standoffs, length depends on aircraft
          Gasoline safe fuel tubing and fuel filter

SPECS:    Displacement: 2.013 cu in (32.98cc)
          Bore: 1.417" (36mm)
          Stroke: 1.276 (32.4mm)
          Crankshaft thread size: 5/16-24
          Total Weight: 2.7lbs (1230g)
            Engine, 34.72oz (984g)
            Muffler, 5.65oz (160.5g)
            Ignition: 3.70oz (105.0g)
          RPM Range: 1,800 - 8,000
          Output: 3.9 PS, 3.85 HP/9,000rpm
          Gasoline/Oil Mixture: 30:1 - 50:1
            25:1 fuel/oil mixture if brand of oil states 50:1 mix
          Replacement Spark Plug: NGK CM-6 or Denso U20M-U
          Height, Crankshaft Center to Exhaust Outlet: 6.1" (156.1mm)
          Height, Crankshaft Center to Muffler Body: 4.1" (105.4mm)
          Height, Crankshaft Center to Muffler Mounting Holes: 2.1" (54.4mm)
          Height, Crankshaft Center to top of Cylinder Head: 4.3" (109.2mm)
          Length, end of Crankshaft to Carb: 7.7" (196.6mm)
          Length, end of Crankshaft to Backplate: 6.2" (158.9mm)
          Length, end of Crankshaft to Center of Engine: 4.9" (125mm)
          Length, Prop Washer to Center of Engine: 3.3" (84.5mm)
          Length, Prop Washer to Carburetor: 6.1" (156.2mm)
          Length, Prop Washer to Backplate: 4.7" (118.5mm)
          Width, Muffler Body: 4.5" (114mm)
          Width, Crankshaft Center to Exhaust Outlet: 1.2" (31.5mm)
          Cylinder Head Diameter, front to back: 2.5" (62.8mm)
          Cylinder Head Diameter, side to side: 2.6" (66mm)
          Mounting Hole Centers top to bottom: 2.1" (54mm)
          Mounting Hole Centers side to side: 3" (76mm)

                                                                   jxs 04/28/11
                                                                         ir/jxs
                                                              updt jxs 11/11/11