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What size Cross section rubber for peanut scale? (Read 5557 times)
Reply #5 - Oct 11th, 2016 at 7:53pm

Sky9pilot   Offline
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Stick & Tissue
Kelso, WA 98626 USA

Posts: 8007
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We've recently posted Don Srull's article on "Estimating Rubber Cross-Section Requirements"  look at reply #6 Click Here
Sky9pilot
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #4 - Aug 7th, 2012 at 7:01pm

Sky9pilot   Offline
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Stick & Tissue
Kelso, WA 98626 USA

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Thanks Marc...you're welcome for the 101 Build... it was fun. 

Eric good stuff thanks for the chart...

Tom
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #3 - Aug 6th, 2012 at 6:52pm

thymekiller   Offline
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Stick & Tissue
Missouri

Posts: 3147
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Rubber size has alot to do with personal taste.
Thinner rubber will turn longer, but with less power. Good for indoor stuff.  More time, less rafters rash.  Grin

Wider stuff has more "Power Burst" but less turns. Tends to make her climb higher, but runs out of steam faster. Works great if your plane is a tad heavy.

For most peanut scale, 3/32 is great.  I use 1/8 [4/32] for most small stuff. You can always use more than one loop. You probly already know this, but, 2 strands is 1 loop.

Each plane reacts to different rubber sizes and prop sizes differently.   If you can, try to get a couple different sizes and try them all.  Personally, I go for the thinnest rubber I can get away with and LONG loops of it.  Alot of folks go just the opposite.

This might help put it into perspective. Please remember, this is just a guide, not cast in stone. Each motor is a bit different. This chart will get you near max turns. [Close to breaking] Grant yourself some margin for error so as not to blow out the tail of your plane. Personally, I like Super Sport rubber, if you can find it. Call or email before you put out your cash. Dont forget to lube that motor.  A jar of good lube will last forever.

 

Turns_Chart.jpg (44 KB | )
Turns_Chart.jpg

",,,The road goes on forever, and the party never ends..."
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Reply #2 - Aug 6th, 2012 at 3:15pm

Marc   Offline
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I Love YaBB 2.5 AE!
Mason Ohio

Posts: 60
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Thanks Tom.  BTW that build 101 is terrific.thanks so much for taking the time and trouble.
 
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Reply #1 - Aug 6th, 2012 at 10:17am

Sky9pilot   Offline
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Stick & Tissue
Kelso, WA 98626 USA

Posts: 8007
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Marc,

Checkout the Supplies section....there are several FreeFlight suppliers listed there: Shorty's Basement, A2Z, etc. that offer rubber in many differing sizes.

Here's the link: http://www.stickandtissue.com/cgi-bin/yabb2/YaBB.pl?board=supplies

Tom
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Aug 6th, 2012 at 9:03am

Marc   Offline
Junior Member
I Love YaBB 2.5 AE!
Mason Ohio

Posts: 60
**
 
I was wondering what you guys use... I think my Peck Lacy came with 3/32? 

If that's what you use, where do you get it?
 
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