This is the Red Line RL-1.00 Ringed Heli Engine from Thunder Tiger.

FEATURES: XC2 (Extreme Composite Coating) cylinder liner etched with special
            criss cross pattern
          Designed for stable hovering and thrilling 3D manuevers in .50 -
            .90 size helicopters
          Precision balanced crankshaft is nickel plated to reduce corrosion
          Lightened hypereutetic machined Al-Si ringed piston
          Knife edge, high strength connecting rod
          Two needle valve carburetor with both hex and FT driver head at same
            side for easy adjustment, push/pull throttle lever pre-installed
          Machined aluminum oversized heat sink head
          Three year limited warranty beginning at date of purchase

INCLUDES: Red Line RL-1.00 Ringed Heli Engine, Carburetor with Thermo
            Insulator Gasket, R3 Glow Plug, 2.5 & 3mm Hex Wrenches, Box Wrench
            and Instructions

REQUIRES: Fuel: Heli blend, 10-30% nitro and 20% lubricant content
          Glow Starter, Glow Plug Wrench, Fuel Tubing and Field Equipment

SPECS:    Displacement: 1.00 cu in (16.38cc)
          Bore: 1.14" (29.0mm)
          Stroke: 0.98" (24.8mm)
          Practical RPM: 2,000 - 16,000
          Output: 14,500 RPM/3.91BHP
          Weight: 22.0oz (625g)
            Carburetor Settings, note carb is preset at factory and normally
            does not require large readjustments
             Needle Valve: 3 turns open from fully closed position
             Mixture Metering Screw: 1/2 - 1/8 turn counter clockwise to
              richen mixture or 1/2 - 1/8 turn clockwise to lean mixture
          Distance/Mounting Hole Centers Same Side: 0.96" (24.5mm)
          Distance/Mounting Hole Centers Opposite Side: 2.04" (52mm)
          Width Below Mounting Tabs: 1.76" (44.8mm)
          Width at Mounting Tabs: 2.44" (62mm)
          Height Mounting Tab/top of Cylinder Head: 3.43" (87.2mm)
          Height Crankcase Bottom/top of Cylinder Head: 4.31" (109.5mm)
          Center of Crankcase to Front Bearing: 2.19" (55.5mm)
          Backplate to Front Bearing: 3.46" (88.3mm)
          Cylinder Head Width: 2.05" (52mm)
          Crankshaft Size: 5/16-24 UNF

                                                                   jxs 02/29/12
                                                                         ir/jxs