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OS .61FSR ABC

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Old 01-11-2009, 11:29 PM
  #1  
rainedave
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Default OS .61FSR ABC

Ok, time for another old, out of production engine test.[8D]

This is one of the easiest starting, smoothest handling sixties I own. Certainly, the three adjustment #7M carb has a lot to do with it.

Temp: 57°
Powermaster GMA 5/22
OS #8 plug
APC 11x7
12,964 w/stock muffler
1.4hp
7.96lbs. static thrust

This is about 300 or so stronger than my ringed .60SR.

David
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Old 01-12-2009, 12:17 AM
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Default RE: OS .61FSR ABC

Powermaster GMA 5/22
What is this?
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Old 01-12-2009, 12:32 AM
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rainedave
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Default RE: OS .61FSR ABC

It's George Aldrich "signature" C/L stunt fuel. I use it in all my old engines because of the castor content.

http://www.powermasterfuels.com/products/GMA.html

David
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Old 01-12-2009, 01:39 AM
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Default RE: OS .61FSR ABC

rainedave , do you know if this fuel (GMA 5/22) would be a good option to run a MVVS .61 with tuned pipe ???

I'm on the market for the best fuel to this engine (still NIB ).


Thanks .
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Old 01-12-2009, 08:29 AM
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Default RE: OS .61FSR ABC

nothing like a good running strong engine[8D]
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Old 01-12-2009, 09:48 AM
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Default RE: OS .61FSR ABC

SpeedBoy, I think the 5/22 would be fine. You might ask DarZeelon what he recommends. But, being European, I think they are designed for low or no nitro. I would use a fuel with castor oil.

David
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Old 01-12-2009, 12:55 PM
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Default RE: OS .61FSR ABC

Thanks Dave. I have used Powermaster fuels exclusively for at least two decades and have never seen the GMA fuel before.
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Old 01-12-2009, 03:14 PM
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Default RE: OS .61FSR ABC

Thanks David , I sent a PM to DarZeelon already
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