Translations:KAVAN AP06A - Instruction Manual/83/en

High Altitude

It is a fact with all model engines, big or small, that they will not produce the same amount of power at high altitudes as they do at low altitudes. This is because engine compression is reduced due to lower air density at higher altitudes. To improve the power output we recommend using a higher nitro content fuel. Preferably 25% - 35% nitro content.