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Old 02-01-2020, 04:24 PM   #91
Mad_Mike
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Re: Club build, 8 guys building the same plane from short kits


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Yes, I will drill right through the alignment dowel but it will have already done its job keeping the wing halves aligned up front while I get the joiner clamped.
The strength for the LE wing dowel is in the plywood doublers either side of the center 1/2 ribs you can see in post #88.
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Old 02-07-2020, 09:05 AM   #92
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Re: Club build, 8 guys building the same plane from short kits

After our club meeting last night we compared progress again.
The weather kept a few guys away but here are 4 of us holding up bits and pieces.

left to right:
Laurie, Tim L., me, and Kim.
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Old 02-09-2020, 05:13 PM   #93
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Re: Club build, 8 guys building the same plane from short kits

If you haven't started on the push rods yet, consider a vintage solution for this vintage model.
These rods are light and stiff, they take a bit longer to make but once you master the whipping, you'll find lots of other applications for it.
And burgundy thread is required too, I have lots and you're welcome to it so don't use flaming green.
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Old 02-09-2020, 08:12 PM   #94
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Re: Club build, 8 guys building the same plane from short kits

Yeah! I use wooden stick push rods in around half of my airplanes.
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Old 02-12-2020, 01:14 PM   #95
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Re: Club build, 8 guys building the same plane from short kits

I'm one who didn't get the bend at F5 right. I would have borrowed Lauries form but I had the fuselage glued before it came to light.
Anyway, F6, and F7 don't fit unless you get the F5 bend right so I had to come up with something else and I didn't want to bend 3/32 sheet around the curves I ended up with.
So I measured and drew the parts in CAD, printed them 1:1, and stuck the paper on balsa to cut it out. If I lived closer to Rob I would have been over there trading something for some laser time.

I'm happy with how it turned out and am pretty sure it isn't heavier than what the plan calls for.
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Old 02-13-2020, 11:35 AM   #96
skunkhill
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Re: Club build, 8 guys building the same plane from short kits

I'm sort of finished.
With a 3S 3700mah battery, it weighs 3lb, 6oz.
The bad news is, it needs about 5 more ounces in the nose to balance at the CG.
I really don't like to add dead weight, but sometimes, it's unavoidable. I'll start with the heaviest spinner I can find.
The attached file is a web-based CG calculator, which agrees closely with the drawing; CG is 3" behind the wing leading edge.
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Old 02-13-2020, 04:54 PM   #97
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Re: Club build, 8 guys building the same plane from short kits

Well son-of-a-gun.
I hate adding nose weight. Maybe the 25 glow engine would have been the way to go.

I can make you a brass spinner to help with a few grams.

Since you are almost ready, maybe put skis on for a Monday maiden - weather promises to be excellent.
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Old 02-13-2020, 06:32 PM   #98
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Re: Club build, 8 guys building the same plane from short kits

Sorry to hear about the balance problem, but that sure is a pretty plane.
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Old 02-13-2020, 08:24 PM   #99
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I would go with a bigger engine. The one you have looks a little small. That prop looks pretty big though. That's usually my go too when balancing a tail heavy plane.
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Old Today, 02:30 PM   #100
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Re: Club build, 8 guys building the same plane from short kits

What? There is a modern way of doing pushrods? I always swiped the #10 black thread from my mothers sewing basket.
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