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  #1  
Old 11-19-2011, 01:06 PM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 947
Default Throttle Springs Again

I've not seen any posts from users of weaker throttle springs since March. By now, there should be some experienced users who would be comfortable in commenting on them. Another item of interest would be to let us know where you purchased your springs? Was there a minimum order requirement and the approximate cost? I'm not flying yet, but I have a friend who is and is dissatisfied with the current heavy throttle springs.
Thanks, Tom
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #2  
Old 11-19-2011, 02:21 PM
Mich48041 Mich48041 is offline
 
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
Default

Here is a link to my original post about weaker throttle springs:
http://www.vansairforce.com/communit...7&postcount=51
Century Spring had a minimum order of $40 when I ordered mine. I do not have any more left after selling the extra ones to other builders. I have an account with Century Spring and could order another batch to share with others. Or you can order some and sell the extra. They cost about $5 per pair. I think that I sold a pair for $8 or $10 to cover my cost and shipping and hassle. I have about 30 hours on my springs with no problems. I still have to tighten the throttle knurled knob quite a bit to hold the throttle , but I can still move the throttle without having to loosen the knob. Here is a message that Denny from AZ sent me,
Quote:
"I installed the reduced-force throttle springs on my RV-12 several weeks ago and they work great. No more throttle creep. Thanks for this wonderful mod."
I was thinking about replacing the flap handle spring with a weaker one. If anyone has that spring handy, I need to know the parameters: free length, wire diameter, coil diameter, number of coils, installed compressed length with button pressed, and force required to press button. That force can be measured by setting the spring on a bathroom scale and compressing it the same distance as if it were in the flap handle with the button pressed.
Joe Gores
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  #3  
Old 11-19-2011, 02:37 PM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 947
Default Watching for feedback

Thanks Joe, I wouldn't mind ordering a batch, if I thought there was enough interest to recoup my costs. I sure don't need 8 sets of them. We'll see how much activity this thread gets, and we'll go from there. No sense in everybody ordering a batch, that's for sure.
Tom
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #4  
Old 11-19-2011, 03:12 PM
Mich48041 Mich48041 is offline
 
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
Default

I forgot to mention that the Century Spring part number 6049 is too long and needs to be shortened. I could not find an exact replacement with the required characteristics, but the 6049 was the closest. Music wire doesn't need any heat treatment.
The picture below is from Century Spring's catalog.
Joe Gores
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  #5  
Old 11-19-2011, 03:50 PM
rjtjrt rjtjrt is online now
 
Join Date: Mar 2006
Location: Australia
Posts: 775
Default

Tom
If you get a run of them I would like 2 sets (ie for 2 engines). I am in Australia and would pay for the extra postage.
John
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  #6  
Old 11-19-2011, 04:34 PM
rgmwa rgmwa is offline
 
Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
Default Me too..

Tom,
I'm in Australia too, and would take a set if you decide to order.
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RV-12LR 912ULS
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  #7  
Old 11-20-2011, 05:43 AM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 947
Default Ordering a Batch of Springs

Monday, I will go ahead and order a batch of springs.

I will try to save the forum names of those who have responded with interest.
Although, I have never done it, I'm sure that I can figure out how to send packages to Australia. Can't be rocket science. Hay, If I can build an airplane.........
Tom
__________________
2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #8  
Old 11-20-2011, 06:05 AM
rgmwa rgmwa is offline
 
Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
Default

Quote:
Originally Posted by todehnal View Post
Although, I have never done it, I'm sure that I can figure out how to send packages to Australia. Can't be rocket science. Hay, If I can build an airplane.........
Tom
Nothing fancy. A padded envelope via UPS will do just fine.
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RV-12LR 912ULS
120346
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  #9  
Old 11-20-2011, 08:23 PM
rjtjrt rjtjrt is online now
 
Join Date: Mar 2006
Location: Australia
Posts: 775
Default

Quote:
Originally Posted by rgmwa View Post
Nothing fancy. A padded envelope via UPS will do just fine.
Tom
I hope he means USPS - much cheaper than UPS.
USPS is a remarkable service.
As rgmwa said, an envelope with some padding will be fine.
It's not like it's the other side of the world! - just kidding.
John
PS Thanks in advance for doing it.
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  #10  
Old 11-20-2011, 08:46 PM
rgmwa rgmwa is offline
 
Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
Default USPS

Quote:
Originally Posted by rjtjrt View Post
Tom
I hope he means USPS - much cheaper than UPS.
USPS is a remarkable service.
As rgmwa said, an envelope with some padding will be fine.
It's not like it's the other side of the world! - just kidding.
John
PS Thanks in advance for doing it.
Arrr.. yes I do. USPS not UPS. Big difference. Thanks John.
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