How the Entire Smoke System Works

1. The pilot activates the smoke system via a switch or lever on their RC transmitter.

2. This signal commands the smoke pump to turn on.

3. The pump draws smoke oil from the bottle/tank through the weighted pickup line.

4. The pump sends a steady stream of oil through the injection line to the exhaust.

5. The oil hits the hot exhaust pipes and vaporizes, creating a dense, white smoke trail.

6. When the pilot turns the switch off, the pump stops, and the smoke trail ceases after a brief residual burn-off.

   Types of Smoke Oil Tanks/Bottles

   • Dedicated Smoke Tanks: These are purpose-built containers sold by hobby brands (e.g., Sullivan, Dubro, Fortitude). They are the gold standard, featuring:

     • Pre-installed, robust fittings for the pickup and vent lines.

     • Welded seams for maximum durability.

     • Perfectly sized caps with reliable gaskets.

   • Repurposed Beverage Bottles: A popular and cost-effective DIY solution in the hobby. A 0.5L or 1L soda bottle (like a Coke bottle) is used because it is incredibly strong, lightweight, and has leak-proof threads.

     • Important: Specialized aluminum caps with fittings for fuel lines are sold to adapt these bottles for use as smoke or fuel tanks. Never try to drill your own holes in a standard bottle cap—it will leak.

   • Integrated Tanks: Some aircraft have smoke tanks built into the structure of the wing or fuselage, sealed with a special coating.