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#Great Orme 21.12.17

Thu Dec 21, 2017 9:26 pm by Gary M Jones

Good flying this afternoon at the #Orme on this the shortest day of 2017. Wind was bang on the fav. slope probably about 25mph. Must put a ballast bolt in the model. Flight curtailed by the short day length !

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A plane question.

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A plane question.

Post by Mr Moff on Mon Nov 19, 2012 2:04 pm

I was just wondering if someone could explain this weird motor offset thing on planes?
I'm just trying to learn a few things while the weather is less than lovely outside.



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Re: A plane question.

Post by Guest on Mon Nov 19, 2012 2:14 pm

Google 'model aircraft engine side thrust' and variations.

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Re: A plane question.

Post by Mr Moff on Mon Nov 19, 2012 2:18 pm

Thanks Alan, I'll do it now.
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Re: A plane question.

Post by Tim on Mon Nov 19, 2012 10:52 pm

Put VERY simply the offset is there to counteract the effect of the swirling air of a rotating prop hitting the tailfin like a corkscrew, producing more pressure on one side of he fin than the other.....and effectively "yawing" the 'plane to the left - it also helps to counter the torque effect of the model trying to rotate around the engine.

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Re: A plane question.

Post by Mr Moff on Mon Nov 19, 2012 10:57 pm

Thanks Tim, it makes sense now.
I've learned something new today.
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Re: A plane question.

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