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Author Topic: Chiri Biri  (Read 290 times)
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DavidJP
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« on: December 04, 2018, 10:09:42 AM »

I thought this looked rather cute - below of an extract from the plan - the CG should make for some fun.  Not sure where the 'ook is??
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Chiri Biri
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LASTWOODSMAN
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« Reply #1 on: December 04, 2018, 10:58:30 AM »

Hi David.  That is an interesting early aircraft.   Will it be spoked wheels and a scale pilot?

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Richard
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Re: Chiri Biri
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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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« Reply #2 on: December 04, 2018, 11:04:36 AM »

Great project David! I look forward to the build. You definitely have to be very careful to eliminate as much weight as possible in the tail. The rear dowel is in the middle of that wider upright just to the right of the 'Dihedral' print. I tend to make those a bit larger than on the plan.
ian
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DavidJP
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« Reply #3 on: December 04, 2018, 06:00:17 PM »

Thank you Ian - so it is!  Hmm ... yes will bring it forward somewhat as is the modern trend.  On reflection I may enlarge it a little - up to 20ins span perhaps. Peanuts fascinate me but sometimes a little larger model is more practical.

Richard - have you built one or is that photo of someone elses'?    Yes wire wheels of course (b...... colonials) but according to Mr Mooney they should be with white tyres (special spelling for you).  Pilot - depends how it flies! H&S and all that. 
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LASTWOODSMAN
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« Reply #4 on: December 04, 2018, 06:18:44 PM »

Sorry David.   Embarrassed    Not mine - just a good pic I found of what one looked like.

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Richard
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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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« Reply #5 on: December 04, 2018, 06:57:21 PM »

Interesting subject David. Hmm yes I think I would agree with you on size and rear rubber anchorage. Richard's photo does indicate that it is a neat little aircraft.

Have fun - generate some balsa dust.

John
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flydean1
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« Reply #6 on: December 04, 2018, 10:43:14 PM »

If I built it the rear 'ook would go just behind the upright that is at the wing trailing edge.
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kkphantom
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« Reply #7 on: December 04, 2018, 11:28:09 PM »

Walt Mooney plans often showed a pin as a rear rubber anchorage. (hence the narrow upright) I used to copy that years ago until my mate finally got sick of sticking his fingers and made me change to a dowel.
Gary
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DavidJP
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« Reply #8 on: December 05, 2018, 12:13:55 PM »

If I built it the rear 'ook would go just behind the upright that is at the wing trailing edge.

Yes.... my conclusion was similar - not quite as close perhaps but close.  Or could go electric!!  I have a spare car battery.
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Pit
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« Reply #9 on: December 05, 2018, 12:18:28 PM »

That IS a cute one.  I see it has a reflexed tail plane.  I also looked thru my listing of Mooney plans and it is NOT there Shocked!  How to fix (I might be interested in doing this one also)?

EDIT: Found it on OZ.
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