which function in Catia to use to create easilly un eliptical shape tip for my propeller blade?

Please see in the picture below my printscreen.

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3 Answers

The tip can be done several different ways, using different functions. I think I'd try a Multi-Section Surface for more control. But a Fill surface might be the fastest/easiest method.

 
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First make three points two in edges of the propeller and other one is in to some extent from mid-point of propeller. At last joint them by spline function.

 
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