HobbyKing.com New Products Flash Sale
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Old Apr 05, 2013, 09:08 PM
Clear skies and calm winds...
United States, NC, Wilmington
Joined Nov 2011
770 Posts
Trader Rating: 106
For Sale
Gemfan props - Carbon Fiber, Carbon/Nylon & Nylon $1 and up

Gemfan Carbon Fiber Props Starting at $5 each Carbon/Nylon at $2 - and Nylon starting at $1 each

Prices below are for qty 4 - a set of 2cw and 2ccw

Gemfan Carbon Fiber
8 4 props - $20
9 4 props - $24
10 4 props - $27
11 4 props - $30
11 4 props - $40
12 4 props - $41

Gemfan Carbon/Nylon Props
8 4 props $8.00
9 4 props $8.25
10 4 props $8.50
11 4 props $8.75
12 4 props $9.00

Gemfan Nylon Props
. 8 4 props $4.00
. 9 4 props $4.50
10 4 props $5.00
11 4 props $5.50

This is special pricing for RCG Members !

If asked at check-out for a Coupon code enter RCG

Visit: www.DiyQuadCopters.com

Shipping:
3 day shipping - USPS First Class $ 3.25 ( up to 13 oz)

PM (private message) - or - email Dan@DiyQuadCopters.com for questions or shipping out of the U.S.
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Last edited by danphillips; Apr 05, 2013 at 10:27 PM.
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Old Apr 05, 2013, 11:52 PM
Mobius Cables... I got em'
chanyote66's Avatar
United States, TN, Oak Ridge
Joined Dec 2011
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hey dan!

I went to order two sets of the carbon nylon 12" and your inventory is still not updated.

Chris
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Old Apr 06, 2013, 11:05 AM
Clear skies and calm winds...
United States, NC, Wilmington
Joined Nov 2011
770 Posts
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I did not bring in any Carbon/Nylon - there has been almost no interest in Carbon/Nylon due to the fact most people in that size of craft want only CF props. PM me and let me know howmany you need, I order fairly regularly and can bring some in. I need to remove them from the posting.. sorry about that.

Dan
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Old Apr 07, 2013, 07:57 AM
Thermite + ice = Big boom.
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Canada, ON, Ottawa
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Anybody in Canada want to split shipping?
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Old Apr 18, 2013, 04:21 PM
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Would you ship to Brazil ?
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Old Apr 18, 2013, 07:19 PM
Clear skies and calm winds...
United States, NC, Wilmington
Joined Nov 2011
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Brazil is VERY expensive to send packages, especially with tracking - about $30 - Just too expensive.
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Old Apr 19, 2013, 03:01 PM
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United States, CA, Belmont
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I just ordered some Gemfan 10X4.5 and was wondering how well balanced they are right out of the package, usually? I don't have access to a balancer right now. Btw, thanks for the special pricing!
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Old Apr 19, 2013, 08:53 PM
Clear skies and calm winds...
United States, NC, Wilmington
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Faaqna,
I have people tell me they are well balanced. Some say balanced out of the bag. My personal experience is (doing an extreme balance) each requires some work. Mostly minor, but as with any prop, they vary from to prop. For the price, I have not found anything even close to these out of the bag. Thanks for your order !
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Old Apr 19, 2013, 09:05 PM
Thermite + ice = Big boom.
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Canada, ON, Ottawa
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The hobbyking clone ones aren't too great, these (9*4.7) are better than my standard.
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Old Jul 16, 2013, 05:21 PM
Jack
USA, ME, Ellsworth
Joined May 2008
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Dan,

Can you post a list of the GemFan props that includes the model names as the makers call them, part or stock numbers if they have such a thing, and, also what material the prop is made from. There is a lot of confusion as to CF meaning both carbon filled and carbon fiber and there is an obvious difference in the two materials.

They appear to make ABS, Nylon, Carbon Filled Nylon, and Carbon Fiber props and it would be great if everyone called them by those names.

Also, does the maker publish any RPM limits for the propellers?

Jack
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Old Dec 29, 2013, 11:55 AM
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I would like to personally thank you for selling these at a reasonable price so I don't have to order from friggin Hong Kong.
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Old Dec 29, 2013, 06:25 PM
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How do the three materials compare in performance? Is it just a level of risk of them breaking in flight which decreases as they get more expensive?
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Old Dec 30, 2013, 03:50 AM
Jack
USA, ME, Ellsworth
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The CF prop that was tested in this thread is sold under a different brand name but is identical to the GemFan CF props. It was made in the same molds and has to be from the same maker.

Carbon Fiber to Plastic Prop Comparison Test - www.rcgroups.com/forums/showthread.php?t=1991794

The conclusion drawn there was the CF props attain a higher RPM for the same input power and can deliver the same amount of thrust with less power. And those combine to contribute to better battery duration.

Jack
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