Radio-controlled engine O.S. G5 Special GGT15 Spark Plug

Bougie O.S. G5

I find this concept particularly interesting for RC airplane pilots who are looking for:

• a simpler engine,
• less onboard electronics,
• reduced weight,
• more reliable installation,
• more economical fuel consumption than a traditional methanol engine.

The O.S. G5 glow plug plays an essential role in the engine's operation.

It ensures the self-ignition of the fuel/oil mixture thanks to a specific design adapted to the constraints of the GGT-15 engine.

A different technology from traditional RC glow plugs

Unlike a standard nitro glow plug:

• the G5 works with gasoline,
• it does not require an ignition module,
• no electronic sensor is needed,
• the engine maintains a simplified operation.

This hybrid technology developed by O.S. Engines allows to obtain the benefits of a gasoline engine while maintaining the ease of use of a glow engine.

I also notice that this solution greatly reduces:

• the risks of electronic failure,
• the overall weight of the model,
• the complexity of wiring in the RC airplane.

Why use a specific G5 glow plug?

The O.S. GGT-15 engine operates with a compression and combustion very different from traditional nitro engines.

A standard glow plug would not allow to achieve:

• a stable combustion,
• a reliable start,
• an appropriate temperature,
• a consistent operation with gasoline.

The G5 plug has been specially calibrated to withstand:

• gasoline combustion,
• higher temperatures,
• operation without electronic ignition.

It ensures:

• a stable idle,
• excellent throttle response,
• consistent combustion,
• improved engine reliability.

An excellent choice for lightweight gasoline RC airplanes

I find this technology particularly relevant for medium-sized radio-controlled airplanes where weight remains an important factor. The absence of electronic ignition allows:

• weight savings,
• a cleaner installation,
• fewer onboard components,
• simplified maintenance.

The GGT-15 engine equipped with the G5 plug then becomes a very interesting solution for:

• • sport RC airplanes,
  • warbirds,
    • semi-scale airplanes,
    • advanced training aircraft,
    • models requiring a compact gasoline engine.

Differences with a classic nitro glow plug

Compared to a standard glow plug:

• • • the G5 better withstands the stresses of gasoline,
    • the filament design is specific,
    • the thermal behavior is completely different,
    • it is designed to operate without electronic ignition.

A classic nitro glow plug used on a gasoline engine would typically cause:

• • • difficult starts,
    • irregular combustion,
    • engine cuts,
    • premature wear.

Compatibility

This plug is specially designed for:

• • • O.S. GGT-15 engine,
    • gasoline applications without electronic ignition,
    • RC thermal gasoline airplanes.

Why choose the O.S. G5 plug?

I consider this plug as an essential component to fully exploit the potential of the O.S. GGT-15 engine.

It allows you to benefit from:

• • • the economic advantages of gasoline,
    • simplified installation,
    • excellent reliability,
    • a lighter and cleaner engine.

It is also a very interesting solution for pilots who want to reduce the electronic complexity of their remote-controlled airplane.

Key Features

• • Operation with gasoline without electronic ignition
  • Specially designed for the O.S. GGT-15 engine
  • Simplified installation
  • Reduced onboard weight
  • Stable and reliable combustion
  • Very good idle
  • Exclusive O.S. Engines technology