Radio-controlled thermal engine O.S. GF30 engine spark plug

Bougie O.S. GF30 71669020

I find this reference particularly important on a 4-stroke gasoline engine like the GF30, because this type of engine requires very regular combustion to maintain all its flexibility and realistic sound.

With the original O.S. spark plug, the engine benefits from more stable, cleaner, and consistent operation at all speeds.

This spark plug has been designed to withstand:

• high temperatures of gasoline engines,
• long operating periods,
• significant vibrations of large RC engines,
• specific constraints of 4-stroke engines.

A spark plug specially calibrated for the GF30 engine

Unlike a universal standard spark plug, reference 71669020 is perfectly suited to the characteristics of the GF30 engine:

• compression ratio,
• operating temperature,
• electronic ignition,
• 4-stroke gasoline combustion.

I often notice that a perfectly suited spark plug allows for:

• easier starts,
• much more stable idling,
• fewer engine cuts,
• a more linear increase in speed.

On a 4-stroke gasoline RC plane, this stability becomes essential to maintain precise and realistic control.

Ideal combustion for 4-stroke RC engines

The O.S. GF30 engine is appreciated for its smooth behavior, high torque, and very realistic sound.

The O.S. 71669020 spark plug directly contributes to this quality of operation by ensuring homogeneous and constant combustion.

I find that this spark plug particularly helps to:

• maintain clean idling,
• improve acceleration,
• reduce ignition misses,
• optimize gasoline combustion.

It is perfectly suitable for pilots looking for an enjoyable, reliable, and long-lasting engine.

Differences with a classic nitro glow plug

Unlike glow plugs used on methanol engines:

• this plug works with electronic ignition,
• it is designed for gasoline,
• its thermal resistance is much higher,
• it withstands the constraints of 4-stroke gasoline engines.

A classic nitro plug would not function properly on a GF30 engine and would quickly risk deterioration.

Why use an original O.S. spark plug?

I always recommend using a manufacturer's spark plug on high-end 4-stroke gasoline RC engines. With this O.S. reference:

• perfect compatibility,
• optimal engine performance is maintained,
• operation remains consistent,
• overall reliability is improved.

The manufacturing quality of O.S. Engines remains a recognized reference in the world of aeromodeling.

Recommended Applications

• 4-stroke RC gasoline airplane
• Warbird RC
• Semi-scale airplane
• Sport aerobatic airplane
• Large-scale RC airplane

Compatibility

This spark plug is specially designed for:

• O.S. GF30 engine,
• 4-stroke RC gasoline engines with electronic ignition.

Advantages of the O.S. GF30 71669020 spark plug

• Perfect compatibility with the GF30
• Very good engine stability
• Excellent thermal performance
• Smooth idle
• Clean combustion
• Easy starts
• High quality O.S. Engines
• Ideal for 4-stroke RC gasoline airplanes