RCU Forums - Whats the rest?

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Went flying with my 12 year old son yesterday. We absolutely had a blast. He soloed about amonth ago, and is really flying well (good?). We were doing a little follow the leader (with me following him). That is a lot harder than it looks. I have seen some videos, and those guys make it look easy. Anyway, my son looks at the can of Power Master and says "Dad, what is the other 67%"? I said "what"? He said "if the fuel is 15% nitro and 18% lubricant, what's the rest, the other 67%"? I said, "I don't know. Good question, I will see if I can find out". The can doesn't really say what it is. So, does anybody have an answer that I can give to a 12 year old? He really likes this hobby, and I don't want to steer him wrong.
Thanks

RE: Whats the rest?

It is methanol, which is an alcohol.
There is a detailed definition, with many links, on the Wikipedia site:
http://en.wikipedia.org/wiki/Methanol
Methanol, also known as methyl alcohol, carbinol, wood alcohol, wood naphtha or wood spirits.............

RE: Whats the rest?

^^whoops--beat me by 2 seconds....:)

RE: Whats the rest?

Thanks for the replys.