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10-19-2009, 03:41 PM
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Flyin' Around
 
Join Date: Feb 2008
Posts: 25
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pitts mufflers vs cans on DA 100
I am building a 35% pilot-rc extra and I am trying to decide which route to go for exhaust. I am not looking for a sound difference, but rather a noise level difference. Any coments or thoughts would be appreciated.
Thanks, Alex
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10-19-2009, 03:46 PM
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#2 |
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Bad-ass Super Contributer!
 
Join Date: Jan 2009
Location: toledo ohio
Posts: 6,692
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Re: pitts mufflers vs cans on DA 100
cans will be alot quieter than the mufflers. but at a weight penalty. but if you used a carbon fiber prop like mejzlik it would help the noise but cans are best for noise issues.
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AW .60-.90 profile AW 100cc extra 300 DA120 re2's AW 150cc extra 300 DA 170 re3's JR guidance 11X NCFR imac blazing star products http://tntlandinggear.com/ http://www.rcaircraftcomponents.com/ |
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10-19-2009, 03:48 PM
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#3 |
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Flyin' Around
Join Date: Feb 2008
Posts: 25
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Re: pitts mufflers vs cans on DA 100
Noise isnt an issue at this point, but I know that in the upper IMAC classes you are judged on sound. Personally, I like the loudness though
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10-19-2009, 03:48 PM
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#4 |
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Al
Join Date: Jan 2006
Location: Mooresville, North Carolina
Age: 58
Posts: 655
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Re: pitts mufflers vs cans on DA 100
On average cans will be about 5-6db quieter then standard mufflers
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10-19-2009, 03:55 PM
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#5 |
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Al
Join Date: Jan 2006
Location: Mooresville, North Carolina
Age: 58
Posts: 655
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Re: pitts mufflers vs cans on DA 100
IMAC sound scores are based on exhaust and prop noise. To get good sound scores your best bet is canisters and a good prop that does not go supersonic or atleast make sure you have good throttle management.
If you were to run standard mufflers and a three blade prop you can get decent sound scores also just the more common way is canisters
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10-19-2009, 04:10 PM
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#6 | ||||||||||||||||||
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Bad-ass Super Contributer!
Join Date: Jan 2009
Location: toledo ohio
Posts: 6,692
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Re: pitts mufflers vs cans on DA 100
ive seen plenty of imac planes with standard mufflers and a carbon props and do alright with sound scores
__________________
AW .60-.90 profile AW 100cc extra 300 DA120 re2's AW 150cc extra 300 DA 170 re3's JR guidance 11X NCFR imac blazing star products http://tntlandinggear.com/ http://www.rcaircraftcomponents.com/ |
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10-19-2009, 04:33 PM
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#7 |
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Flyin' Around
Join Date: Feb 2008
Posts: 25
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Re: pitts mufflers vs cans on DA 100
Thanks for the reply's everybody! Highly appreciated
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10-19-2009, 04:38 PM
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#8 |
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Flyin' Around
Join Date: Feb 2008
Posts: 25
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Re: pitts mufflers vs cans on DA 100
double post
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10-19-2009, 06:15 PM
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#9 |
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Bad-ass Super Contributer!
Join Date: Feb 2006
Location: Pearland/Houston,Tx
Age: 24
Posts: 1,196
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Re: pitts mufflers vs cans on DA 100
If you want to be even more quiet just install a set of MTW re2 tuned pipes and run a mej 25*12S 3blade.Your plane will sound like an electric in the air. Also the MTW tuned pipes are quieter than the canisters. I like them alot
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