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05-20-2009, 09:41 PM
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FG super user
 
Join Date: Mar 2007
Location: rochester hills,MI
Posts: 190
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Cheese needs some help (other thatn the normal things)
hey guys today i was told i could not fly my yak at my feild due to noise. is there anyone who is going to the columbas contest who has a spare 25x12 3 blade i could try out to see if it brings the nosie down enough. i need to lose 4-8 DB of sound. thanks guys, and go ahead and make fun of the title. ( I know it's to easy)
__________________
Why have enemies when I have such good friends Special Thanks to Mom & Dad Flightline Hobbies Higher Plane Productions RJR Cool Tools Fancy Foam Team GTO |
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05-21-2009, 01:28 AM
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#2 |
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Your my boy Blue!!!1
Join Date: Jan 2006
Location: Lexington Kentucky U.S.A.
Posts: 4,209
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Re: Cheese needs some help (other thatn the normal things)
Chris, Whats your current set up prop and muffler? If its a pitts you may also need to go to a can. Also another thing you can do is limit the throttle (at your home field) to maybe 75% then the noise will be under your limit.
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Thanx to The Crew Mike B. Jim Z. Ed J. Jim S. Airman Wheels www.jerseymodeler.com lazertoyz.com Last edited by Flatlandman; 05-21-2009 at 01:42 AM. |
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05-23-2009, 07:54 PM
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Take-off EH! U Hosehead!
Join Date: Jun 2006
Location: Missisauga ON Canada EH!
Posts: 701
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Re: Cheese needs some help (other thatn the normal things)
Cheese I think you will find the 25 x 12 3B might be a bit of a load for the 85. Have you tried a 24x12 3B?
On my DA100L I went from 6300 on a 28 x 10 2B down to 5600 on the 25x12 3B and I was on straight DA mufflers. Yes it quieted it down but 700 rpms was just to much to loose flying a 32 lb airframe. Then again with your 33% it might not be so bad. If I make it to Jackson and you go you can give it a try, I'll bring it. Right now it's looking doubtfull for Jack son as I leave Monday morning to Vancouver BC for two weeks and don't get back untill about 10:00 PM Friday June 5th. With a 5 hour drive from my house to jackson it's very doubtfull I will nake it as I probalby could not get away till about 11:00 PM and that would put me in to Jackson at 4:30 AM. If I can cut the trip short and get back Thursday the 4th then I'll make it. I'll let you know as it gets closer.
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Jim Daly The "Yakov" One! MAAC #14323, IMAC #3678 When you fly a YAK, you've got the Edge and you don't need anything Extra!   
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