Carpintero
I'm New Here
There's a company called Gromolzig (German) that makes a muffler designed to connect to a 4-into-1 exhaust header, and to hang under the fuselage. They use a ball joint to connect, and, presumably, flexible hangers. They told me today that the cost is about $4000! (3200 Euros, plus shipping.)
Apparently they have some European customers, noise standards being far more strict there than here. Does anyone have any experience with the Gromolzig muffler, or any other under-fuselage mount muffler?
I'm thinking about this for an RV-7, wondering if the noise reduction would be worth the power and drag penalties.
Apparently they have some European customers, noise standards being far more strict there than here. Does anyone have any experience with the Gromolzig muffler, or any other under-fuselage mount muffler?
I'm thinking about this for an RV-7, wondering if the noise reduction would be worth the power and drag penalties.