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Have you ever wondered how a muffler works, and how it looks inside?

Well I have, first I look on the internet to find some information on how it works, I found this useful information How a muffler works
. Then I thought! how about a muffler for my nitro engine how does that looked like inside. Luck has it that I had an old Funtech muffler that I did throw in the garbage can, and now I could find out how it looked inside.

Here is a RC Helicopter muffler cut right over. You can see how the air is traveling in the muffler.

Inside a muffler
Inside a muffler
Inside a muffler
Inside a muffler
Inside a muffler

That is how a muffler looks like inside.

I was out flying with my new Hatori muffler the other day. There is a better noise reduction compare to the Funtech muffler, The Hatori is a bit longer then Funtech.
The construction of the Hatori seem better, I did not even have to tighten the mount screws after my flights with a newly mounted Hatori muffler. That’s a first.

Then I removed some weights from my paddles, it is amazing how responsive a Freya 90 Evo can be. :)