It's hot and muggy---More nitro or less nitro? that is the questiom.
I've been feeding my B .40 5% nitro and 23% oil & castor mix. A couple years ago in the hot weather Jan and I postulated that less nitro would let the engine run cooler/better in hot humid weather.
What are your thoughts on this please.
Hi Frank
Most alway we go up on nitro when it gets into hot months,
Reasons are, when it gets hot and humid , power goes down, in order to get it back some people turn the needle in leaner, this just makes for a hotter running engine.
If you add nitro, it give more power and lets you run the needle at a richer setting thus not making the engine run hotter. It also requires you to run more fuel thru the engine for the same amount of flight time, thus cooling it more.
Regards
Randy