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Cox Engines Forum  :: Models and Modeling :: Models and Modeling

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Post  Ivanhoe Sat May 05, 2012 6:04 am

Here's an idea to try is your .020 or .049 is proving too powerful for that undersized model you built!

Reducing Engine Power Prop_d11

Thin aluminium disk clamped to prop to reduce it's efficiency, of course, in my opinion, it's always better to build the right sized model!
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Post  Ken Cook Sat May 05, 2012 6:17 am

My father built many glo powered freeflighters. I myself never built a engine powered freeflight. I love rubber power though. You just can't imagine unless you see it first hand how high a Cox .020 freeflight plane can go on a 10 second run. It's truly amazing. Even with the plane trimmed to fly in a circle it's very easy to lose it if it grabs a thermal. I've lost rubber power models the same way. A great example here of modeler's ingenuity to tame the engine. Ken
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Post  Ivanhoe Sat May 05, 2012 7:46 am

shawn cook wrote: My father built many glo powered freeflighters. I myself never built a engine powered freeflight. I love rubber power though. You just can't imagine unless you see it first hand how high a Cox .020 freeflight plane can go on a 10 second run. It's truly amazing. Even with the plane trimmed to fly in a circle it's very easy to lose it if it grabs a thermal. I've lost rubber power models the same way. A great example here of modeler's ingenuity to tame the engine. Ken

You should see the rate of climb of a racing .15 powered open power model!
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