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Old Feb 27, 2004, 12:36 PM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
my new 8,3g plane

I' built this little plane without thinking it could really fly
but it's flying very well and during........10mn!!!!!
span : 20cm weight: 8,3g
the actuators are homemade the motor is a 45ohm 6mm didel;
gear ratio 5,33:1; prop 77mm & tin pitch homemade; combo JLC
hope it 's gonna give some idea to some of you!
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Old Feb 27, 2004, 01:27 PM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,438 Posts
Christophe,
Nice plane. What is the chord, in other words what is the wing area?

Gordon
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Old Feb 27, 2004, 01:36 PM
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gbarc's Avatar
Jackson, Michigan, United States
Joined Nov 2002
1,388 Posts
Very Neat!!



Greg
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Old Feb 27, 2004, 02:05 PM
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Jgardner's Avatar
Rochester Monroe Cty, New York, United States
Joined Aug 2002
1,577 Posts
Prop

Great work. Could you do a closeup of the prop and tell a bit about it.

Thanks for showing us your nifty plane.

John
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Old Feb 28, 2004, 03:59 AM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
gordon the chord is almost the same word in French (corde) ( U'd be surprise by the number of common word in English and French!)
then it's 6cm (1,20dmē area)
Something which is really important is that there's a negative pitch on the rear edge of the wing for more stability.

John,
I'll do closeup today and I'll send it. I don't Know how to explain the pitch.
If U'want just ask for anything
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Old Feb 28, 2004, 07:12 AM
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Uwe Steller's Avatar
Karlsruhe, Germany
Joined Jan 2004
210 Posts
Nice, do you have a detailed weight breakdown ?
Uwe
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Old Feb 28, 2004, 09:13 AM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
hi Uwe
-total frame : 1g
-combo : 0,9g
-actuators : 0,6g each (I did a 1g pair last week)
-motor+gear : 2g
-prop : 0,3g
-landing gear + connection wires : 1g
-lipoly 90 : 2,5g
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Old Feb 28, 2004, 09:21 AM
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Uwe Steller's Avatar
Karlsruhe, Germany
Joined Jan 2004
210 Posts
Thank you very much, new targets are set!
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Old Feb 28, 2004, 09:26 AM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
Greg,
Thank you very much for your compliment !
Like this I lurned a new English word ( neat ) I looked up in the harraps and the translation is very touching!
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Old Feb 28, 2004, 09:35 AM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
8,3g plane

John,
here are some photo of the prop
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Old Feb 28, 2004, 09:36 AM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
one more

an other one
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Old Feb 28, 2004, 09:37 AM
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Normandy France
Joined Dec 2003
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one more

the last one
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Old Feb 28, 2004, 09:39 AM
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2Cconcept's Avatar
Normandy France
Joined Dec 2003
54 Posts
there's a very small screw on the side of the prop hub to maitain it
on the axe
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Old Feb 28, 2004, 01:08 PM
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Rochester Monroe Cty, New York, United States
Joined Aug 2002
1,577 Posts
Thanks

That is another piece of great workmanship. I have yet to do a good prop, but I keep considering options.

Great photos, great plane.

John
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Old Feb 28, 2004, 10:54 PM
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Inari's Avatar
Las Vegas
Joined Feb 2002
1,114 Posts
Very nice!
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