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What model size?


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I have a NIB Merco 61 spark ignition petrol motor and would like to build a vintage model for it. 

Just for floating around on calm evenings of course.  Had thought of a KK Falcon but they are 10a penny. 

I have a few old timer gasser plans from the US, but really need to have an idea of the size / weight that the engine will cope with whilst leaving a bit extra for the odd windy day or for getting out of trouble.   Any help appreciated.

 

John M

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Yes it's interesting in that it has a micro switch bolted just in front of the exhaust outlet and operated by a cam on the throttle arm so that at low (25% or less) throttle it retards the ignition to stop it being too advanced at tickover and stopping and throwing a prop.  Says run it in on a 13x6 prop but can go up to a 16x6.

Thanks for the weight guide Denis.

 

John M

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