>> Hi,
>>
>> In his book ?Firewall Forward?, Tony Bingellis
>> describes a Swiss
>> Muffler. Have anyone tried it on a rotary. I?m
>> thinking of using it on
>> my Vision to offset some of the weight of the
13B.
>>
>> Regards,
>>
>> Pierre
>>
>>
>> Its been tried several times on the rotary. The
>> rotary chews it up and
>> spits it out.
>>
>>
>> Paul Lamar ...No rotor no motor.
>
>
>
> I might try one downstream of my Hushpower
muffler,
> depending on how quiet the hushpower ends up
being. As
> it was with just the hushpower, the engine is not
too
> loud.
>
> Brian Trubee
>
> This is a cheap muffler that works well on the
rotary because
> of the formed steel case. There are no drastic
section changes that tend
> to fail. It is also stream lined somewhat so it
does not add a lot of
> drag.
>
> Paul Lamar ...No rotor no motor.
Paul,
That isn't the Flowmaster I was thinking about, I
didn't know they made one
like that. How much does it weigh?
Steve
I don't know. I think Brian has one. What does it
weigh Brian?
--
Paul Lamar ...No rotor no motor.
I can't give you a weight because it is installed.
Also, I've welded the 'Y' collector onto it, along
with the O2 sensor. the dimensions are:23"
overall,(19" for the body, the inlet and outlet pipes
add 4") 5 1/2"wide, 3 1/2" deep. It's made out of
some sort of stainless steel, I forget which series,
but Tracy reports that it holds up well.
Brian
Paul,
We have been thru the rotary muffler issues as well as other users in your
group. We looked at the Hushpower online and were considering trying it. Do
you have any input to this muffler as far as temps it will withstand and
constant power, noise level Etc? We would be using this in a hovercraft
application running 5500 to 6000 max RPM with our single engine.
Any input would be appreciated.
Eric Barger, President
Phone 419-694-3000 x 222
RotaMax Inc.
15152 Twp Rd 190
Arlington, OH 45814
Fax 419-694-1401
www.rotamax.net
I don't have any hard data on it as I have never heard the engine run with
one on it without a prop. Typically the prop is half the noise or so. I am
just guessing. At 30 feet off to the side of the airplane with a prop it
is about 103 db plus or minus 3 as a wild ass guess.
It is cheap enough so give it a try. It seems to work for us.
What sort of fuel burn are you seeing at 5500 to 6000 RPM in terms of gallons
per hour?
Paul Lamar ...No rotor no motor.
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