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Old 01-12-2013, 03:19 AM
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Altered1
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Default RE: Canard configuration airboat CG ?

For my flatty, the CG (or more correctly) balance point with a full load of batts and fuel, is 1/3 of the hull length from the rear. The prop is close to this point too.

A 3 pointer is tentatively my next build, so I cannot comment exactly , but the closer the prop is to the balance point will make largest differences to any trim modifications, as you are pivoting the prop around the balance point too.

So you are going with the sponsons to the rear ? Several successful designs have the prop up front in puller configuration, down the back puller or pusher as well.... All have different CG requirements.