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Old Sep 25, 2011, 05:32 PM
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OS75 for a Great Planes Zlin 526

I am considering a Zlin 526, but I have a OS75 engine. The plane is rated for a 46-55. I wonder if my engine will fit and if it will not be too heavy. Thanks.
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Old Sep 25, 2011, 09:12 PM
Fueled by Arabica Beans
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Joined Oct 2008
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What company makes the plane? The 75AX is a good deal heavier than a 55AX (half a pound), you probably will need some tail weight. Can't say for sure without information on the model itself whether that would be too much extra weight.
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Old Sep 26, 2011, 02:56 AM
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I have a Zlin 526 with a Enya .60 from just after the stoneage. it flighs great! No need to put that big engine in it!
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Old Sep 26, 2011, 06:52 PM
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Chill,

It's a Great Planes Z-526 Zlin Akrobat ARF. 56"

I have a 75 OS AX from a previous plane that crashed and I am looking for a plane for my 75.

Thanks,
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Old Sep 26, 2011, 07:11 PM
Fueled by Arabica Beans
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United States, NY, Syracuse
Joined Oct 2008
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Gotcha, well it wouldn't be totally insane. Looking at the specs they estimate 6.75 lbs on the heavy end, and say yours ends up half a pound hevier, at 7.25 lbs the wing loading would come in around 26 oz /sq ft, so it will definitely carry a little steam on landing. If you do it (and I'd be tempted realistically) Throw in some extra triangle stock to reinforce the firewall and make sure to be liberal with the epoxy.
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