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Nitro - Gas Helicopters Discuss helicopters, setups and power systems for gas-nitro helicopters.

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Old 08-06-2010, 08:45 PM   #11
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Re: What % nitro to use?

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Originally Posted by zvman View Post
Hey guys, for someone starting out learning to hover and only wants to get into sport flying, is there any problem using 15% nitro fuel? I know it will not produce as much power as 30%, but does a beginner require that extra power and expense? Are there any problems using 15% vs 30%? The engine is an OS 55, on trex 600. Thanks.
When I started with my old Kyosho Concept 30 DX, and OS 32, 15% was all I ran. That was more than enough power to learn to hover, fly around and get into basic aerobatics. Once you get into 3D, then you need more power... for hovering, no need for it.

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Old 08-07-2010, 07:27 AM   #12
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Re: What % nitro to use?

I've been using CP 15% heli for general flying around with good results. It works fine and is relatively easy on the wallet.

I mix the 12.5% and 30% CP fuel (50/50) for serious practice. My engines are very happy with the resulting oil/nitro content. The extra power allows bigger maneuvers and helps mask my mistakes with the left hand better. The engines tune up nicer and run more consistent as well. Keep in mind that these differences are not large and unless you're trying to do some very accurate and consistent flying, it would be difficult to realise the benefits. It's certainly more expensive and not necessary for general flying and practice.

Some really good fliers (not me), have spent a lot of time and effort searching out the optimum combination, and the above mix seems to be the standing consensus. I just take their word for it and it works well for me.
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