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Author Topic: F1N-150 for Cat II+ - with flaps or without?  (Read 178 times)
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Tapio Linkosalo
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« on: September 13, 2018, 01:53:17 AM »

Planning of trying F1N-150 in November, in a 18 meter football hall. Should I plan to make a model with fixed wing and spiral climb, or go with flaps and bunt?
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Olbill
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« Reply #1 on: September 13, 2018, 07:40:30 AM »

Probably solid with Ishii airfoil if you've got some light balsa.
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Tapio Linkosalo
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« Reply #2 on: September 13, 2018, 10:48:37 AM »


Thx. Where can I find coordinated for the Ishii airfoil?

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Olbill
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« Reply #3 on: September 13, 2018, 11:16:40 AM »

I've lost the coordinates. Anyway I think he made the coordinates from the airfoil instead of vice versa. Here are drawings on a grid. Also a few of his Cat 2 F1N's.

He makes his wings by hand without templates. There are some YouTube videos of Ishii carving a wing but I can't find them right now. He says it takes him 2 hours to make a wing.

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Re: F1N-150 for Cat II+ - with flaps or without?
Re: F1N-150 for Cat II+ - with flaps or without?
Re: F1N-150 for Cat II+ - with flaps or without?
Re: F1N-150 for Cat II+ - with flaps or without?
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Tapio Linkosalo
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« Reply #4 on: September 14, 2018, 02:15:39 AM »

150mm wing should be faster to carve... :-) But anyways, the airfoil looks complicated. How much would the performance suffer if I tried some stanfoil'ish airfoil?

 
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Olbill
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« Reply #5 on: September 14, 2018, 07:55:26 AM »

Tapio
I apologize but I didn't see the 150 in your question. All the info I sent was for F1N. I have no experience with F1N-150. There are a lot of plans on the Facebook group "Everything about F1N".
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