Fun fly

Quorneng
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02 Mar 2026 09:35 #76 by Quorneng

Replied by Quorneng on topic Fun fly

Normally the aileron is always included in the wing chord after all when driven by a RC servo it is aerodynamically irreversible so part of the wing but with that wing section and a "plate" full span aileron a "good" CG could be anybodies guess.

Thanks: Eric, Klipkopwildlife

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Klipkopwildlife
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I'm supposed to be retired!

02 Mar 2026 13:33 #77 by Klipkopwildlife

Replied by Klipkopwildlife on topic Fun fly

I've gone with Eric's experience of a similar model. 90gms of lead in front of the propeller has moved the CoG forward about 10mm, we'll see how it goes tomorrow.

Do it now, you may never get another chance

Thanks: Eric, Flytilbroke, jon.in.swansea

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Eric
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02 Mar 2026 13:44 #78 by Eric

Replied by Eric on topic Fun fly

Fingers crossed - remember the old saying - a forward c of g flies badly, a rearward c of g flies once!

if you are calm and collected when all about you are going berserk - you've missed something important!

Thanks: Klipkopwildlife, jon.in.swansea

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THE BLACKBIRD
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02 Mar 2026 14:12 #79 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic Fun fly

Don’t forget that I extended the nose by 100mmafter building it with a short nose as is usual for fun flys and finding it way tail heavy

Thanks: Eric, Klipkopwildlife, Flytilbroke

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THE BLACKBIRD
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29 Mar 2026 19:41 #80 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic Fun fly

Wondering what to do in between listing all my railroading stuff on Ebay i saw i had 4/5 sheets of 2mm balsa and as it flew well in Africa i thought why not, as you do
so decided to build another Fun Fly wing

Dont know about the rest of it

Thanks: Eric, Klipkopwildlife, Flytilbroke, Quorneng, jon.in.swansea

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Eric
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30 Mar 2026 12:56 #81 by Eric

Replied by Eric on topic Fun fly

Don't forget to correct any errors you made, (like holes in the wing for the servo wires!) and incorporate any improvements that showed up!

if you are calm and collected when all about you are going berserk - you've missed something important!

Thanks: Klipkopwildlife, Flytilbroke

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