Hallo.
I haven't flown too much since completing my -4. So, I am still fixing some issue.
Now, I feel that even with an active noise reduction headset (Zulu) the noise in the cabin is really high when RPMs are over 2.000. Even worst when side vents a-la-RV10 are opened. I have a 4 exhaust system.
Noise is way more than that on my previous -9A. The latter had the complete Classic Aero Design padding and pockets (side pockets, rubber floor). The -4 has nothing. Could the upholstery make the difference?
How can I improve the soundproofing? I read that a padding on the FF, cabin side, will not improve the SP...
Thanks.
Camillo
I haven't flown too much since completing my -4. So, I am still fixing some issue.
Now, I feel that even with an active noise reduction headset (Zulu) the noise in the cabin is really high when RPMs are over 2.000. Even worst when side vents a-la-RV10 are opened. I have a 4 exhaust system.
Noise is way more than that on my previous -9A. The latter had the complete Classic Aero Design padding and pockets (side pockets, rubber floor). The -4 has nothing. Could the upholstery make the difference?
How can I improve the soundproofing? I read that a padding on the FF, cabin side, will not improve the SP...
Thanks.
Camillo