Tag Archives: Engines

O.S. Engine® 55HZ-R Heli Engine

Demanding 3D helicopter flying, with constant, vigorous attitude and throttle changes, requires an engine with a steady, dependable fuel supply. O.S. answers the call with the 55HZ-R Heli Engine, featuring the Demand Regulator System (DRS) for instantaneous response and outstanding...
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DLE 170cc Twin Gas Engine

The DLE Twin requires less investment up front and less space to mount while giving modelers value-adding extras:
  • Electronic ignition system simplifies starting and maximizes performance at all throttle settings.
  • Horizontally opposed cylinders deliver smooth, virtually vibration-free operation.
  • Other performance features include advanced...
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New O.S. Engines

21XZ-B & 21XZ-B SPEED The 21XZ-B engines represent the next level in high performance engine technology.
  • The 21XZ-B boasts improved fuel mileage and a long stroke for superior torque.
  • A 21J2 three-needle carburetor includes a 7-mm restrictor.
  • The 21XZ-B Speed has been tuned...
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Saito FG-20 4-Stroke

ENGINE TEST BY:Mike Hoffmeister Why to Buy First, the FG-20 features an all-new, purpose-built Saito pumper-type carburetor, which is much more compact than a butterfly type pumper carburetor, making the engine easier to fit into a wide variety of aircraft types. Also, with...
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