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Old Jul 11, 2008, 12:29 PM
new pic, same plane....
sketchanderase's Avatar
Dayton MN
Joined Jan 2008
1,055 Posts
what is the c rating do? i know that it is the discharge rate but what is the difference between a high discharge rate and a low discharge rate?
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Old Jul 11, 2008, 12:38 PM
Registered User
LI, New York, USA
Joined Mar 2003
23,469 Posts
Quote:
Originally Posted by sketchanderase
what is the c rating do? i know that it is the discharge rate but what is the difference between a high discharge rate and a low discharge rate?
It is usually best to read some of the prior posts. Your question was answered two posts back.

http://www.rcgroups.com/forums/showp...&postcount=149

High rate and low rate are relative terms, not absolutes.

So a 10C rated pack is high compared to 5C rated pack and low compared to a 20C rated pack.
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Old Jul 11, 2008, 02:18 PM
new pic, same plane....
sketchanderase's Avatar
Dayton MN
Joined Jan 2008
1,055 Posts
sorry, didnt see your post, thanks
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Old Jul 25, 2008, 12:56 PM
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JASPERRDM's Avatar
Montgomery al
Joined May 2008
55 Posts
here a pic which has a lot of the connectors
http://www.quietrcflying.com/Product...CSRC-OCTOPUS-1
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Old Jul 25, 2008, 03:07 PM
Airforce Nut
No Limits's Avatar
Littlestown, Pennsylvania
Joined Sep 2007
500 Posts
that thing is awesome!

I'll have to grab 1 or 2

-CJ
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Old Jul 27, 2008, 07:56 PM
Flying low is expensive.
pdiddyg40's Avatar
United States, CO, Boulder
Joined Jul 2008
2,397 Posts
Hi, I am new to rc and have had sucess on several flights, but i still have questions about the hobby. While looking at props a question occured to me. What do the two numbers stand for when talking about size? Also, what is the difference is brushed vs. brushless motors. As well as outrunners vs. Inrunners? Finally, what is the gear ratios mean when talking about a gearbox for your motor?


Thanks in advance,
pdiddyg40
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Last edited by pdiddyg40; Jul 27, 2008 at 09:18 PM.
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Old Jul 28, 2008, 06:14 AM
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LI, New York, USA
Joined Mar 2003
23,469 Posts
Quote:
Originally Posted by pdiddyg40
Hi, I am new to rc and have had sucess on several flights, but i still have questions about the hobby. While looking at props a question occured to me. What do the two numbers stand for when talking about size? Also, what is the difference is brushed vs. brushless motors. As well as outrunners vs. Inrunners? Finally, what is the gear ratios mean when talking about a gearbox for your motor?


Thanks in advance,
pdiddyg40
Welcome to the forum. I am going to give you short answers, and help you learn how to find answers.

First, at the top of the page, just above the list of page numbers is the search field. Click on that and enter a question. It will seach for your answers. Very useful tool. Everyone should learn to use it. No waiting for answers, as all these questions have been asked hundreds of times.

Second, there are the sticky threads at the top of the beginner forum. Your questions are most likely answered in the thread on selecting power systems.
http://www.rcgroups.com/forums/showthread.php?t=739069

Now, quick answers:

Prop numbers span and pitch. How wide the prop is and how far it expects to move the plane on each rotation. A 9X5 prop is 9" wide and wants to move the plane 5" forward per rotation, asssuming no slippage in the air.

Brushed motors switch their magnetic fields through the use of brushes riding on a commutator resulting in rotation. Brushless motors have no brushes. Field polarity is controlled by a chip and software in the speed controller.

Out runners have the moving part of the motor on the outside. Inrunners have the moving part of the motor on the inside.

Gear ratios indicate how many times the output shaft ( where the prop mounts) turn for each turn of the input shaft, what the motor turns.

Now, check that other thread and try the search feature. You will find a wealth of information.
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Last edited by aeajr; Jul 28, 2008 at 09:48 AM. Reason: fixed a couple of typos
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Old Jul 28, 2008, 09:28 AM
Flying low is expensive.
pdiddyg40's Avatar
United States, CO, Boulder
Joined Jul 2008
2,397 Posts
thanks a lot aeajr,
that really helped. I will be using the search tool in the future which, i am sure, will be very useful. Rc Groups is definatly the place to come for my rc questions. :-)
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Old Jul 29, 2008, 02:11 PM
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JASPERRDM's Avatar
Montgomery al
Joined May 2008
55 Posts
I scan the 11 pages. And did notice or missed what tools a beginner should get. So
Small screwdrivers both regular and Philips; should be magnetic
Small roll of strapping tape used for tacking screws to a strip so they donít disappear, also handy to add pull sleeve to small battery.
Hobby knife
Hex wrenches 5 millimeter and smaller
Mini screw extractor for removing screws which you broke off. example
http://www.ares-server.com/Ares/Ares...oduct&ID=83475
Small crescent wrench... I have 2 6 inch ones.
Small vice grips
Tiny Ziploc bags not the snack bags but the 1/2 inch by x inch for placing small parts and screws in.
Camera for taking pictures.
Pen and small tablet for taking notes in the field.
Cheap tool or tackle box.... you can upgrade to field box later.
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Old Jul 30, 2008, 10:29 PM
Airforce Nut
No Limits's Avatar
Littlestown, Pennsylvania
Joined Sep 2007
500 Posts
good tip JASPER, while all of that is good and well, definately for any newb looking for tools go to Hobby-Lobby and the tools section they have lots of nice things to add to your home and field arsenal of tools

-CJ
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Old Aug 14, 2008, 09:08 AM
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Joined Dec 2007
27 Posts
Quote:
Originally Posted by new flyer
where were all these links when i was strting out.lol
Thank you for all the info. They had the air show at the willow run airport in Ypsilanti, MI last weekend and since I live on the lake really close by, I got to enjoy it right on my boat. It was awesome. They had F-16 and F-18 and you name it flying right over our heads!
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Old Aug 18, 2008, 02:19 AM
BEOWULF
North vancouver, B.C. Canada
Joined Apr 2008
18,072 Posts
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Last edited by David22; Aug 18, 2008 at 03:15 AM.
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Old Aug 22, 2008, 08:58 AM
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JASPERRDM's Avatar
Montgomery al
Joined May 2008
55 Posts
Plane part
Clevis- part connects the control rod to control horn. can be plastic or metal. is generally screwed on to end of rod. Is handy to making adjustments to trim. Has to be same size as control rod.
Go to store sites to see what they look like.
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Old Aug 22, 2008, 09:54 AM
Fly it like U stole it
Pickle72's Avatar
Champaign, Il
Joined Mar 2008
2,386 Posts
I have one I can't seem to figure out. I know what 1/4 scale or 1/10 scale means. But What are they talking about when they say 300% scale or 125% scale?
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Old Aug 22, 2008, 02:00 PM
Airforce Nut
No Limits's Avatar
Littlestown, Pennsylvania
Joined Sep 2007
500 Posts
I can't be sure but I an educated guess would be that it's a lager scale of an RC plane that's not already a scale model of a bigger plane

like I said, Idefinately wouldn't bet on it, that's just an educated guess

-CJ
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