| Our new Silencer system uses a totally new principle of noise reduction without any moving parts or loose damping materials. The silencers are really small and fit inside existing mufflers of most General Aviation Aircraft, f.i. Cessna 152, -172, -182 and -210.For aircraft without mufflers of suitable diameter we have developed small endpipe slilencers, f.i. Cessna-150, Piper PA-28, PA-38 and Mooney M-20. The additional weight due to our silencer typically is less then 2 lbs. With the LIESE-Silencer we meet the strict german noise limits and in most cases achieve noise levels of 5 to 6 dB(A) below the german limit. Some examples of measured noise levels with LIESE-Silencer ( Annex 16, Chapter X ): Aircraft Type Meas. Noise Level German Noise Limit ICAO/EASA Noise Limit--------------------------------------------------------------------------------------------------------Cessna-150-M 66,1 dB(A) 71,8 dB(A) 73,7 dB(A)Cessna-172-N 70,1 dB(A) 77,2 dB(A) 83,8 dB(A)Cessna-210-F 78,6 dB(A) 85,0 dB(A) 88,0 dB(A)Piper PA-28-181 74,1 dB(A) 79,2 dB(A) 85,3 dB(A)Piper PA-38 67,3 dB(A) 72,4 dB(A) 79,3 dB(A)---------------------------------------------------------------------------------------------------------We are holding more than 70 EMZ’s ( german STC’s ) for the most common types of General Aviation Aircraft with more than 350 certified noise values for different Models, Engines and Propellers. Some types of A/C we can offer LBA/EASA-certified LIESE-Silencer-Systems. Outside EASA the approval of our LBA/EASA certifications depends on the local regulations of each country. Beech-33, -35 und -36 ( all Versions with Conti. IO-520 )Beech "Baron" ( non Turbo ), Beech "Duke"Beech-A23(A)Britten Norman BN-2 ( with 260 und 300 HP )Bölkow BO-209-150/160 "Monsun"Bölkow-208 "Junior"Cessna-150 to C-(F)150-MCessna-(F)152Cessna-170/172 with Conti O-300Cessna-(F)172-K to -P ( Lyc. O-320 )Cessna-172-R ( with Lyc. IO-360 )Cessna-FR172 "Rocket" and "Hawk XP"Cessna-172 RG and C-177 RG "Cardinal"Cessna-(F)182-A to -R ( Conti. O-470-L, -R, -S, -U )Cessna 182-S, -TCessna-210-D to -R( Conti. IO-520 with 285 and 300 HP )Fuji FA-200-160 and -180Grumman AA-5, AA-5-A, AA-5-B and AG-5-BJodel DR-250/160, 360, 400/140 and 400/160 ( Lyc. O-320 )Jodel DR 253B, DR300/180R, DR400/180, DR400/180RMooney M20-B to -J ( Lyc. O-360 and IO-360 )Mooney M20K ( Mooney 231 )Morane MS-880 and Rallye 100 S-D and ST-DMorane MS-892, MS-893Morane MS-894Navion HPiaggio (FW) P 149Piper J3C/L4 ( Conti. C-65 bis C-90 )Piper PA-18 with Conti C90, Lyc. O-290, Lyc. O-320Piper PA-28-140 to -181 incl. Archer III ( Lyc. O-320 and O-360 )Piper PA-28-R180 to -RT201Piper PA-32 ( 300 HP )Piper PA-38 "Tomahawk"Rockwell 112Rockwell 114 and 114-ASocata TB-9 with 2-Blatt Hartzell or 3-Blatt MT-Constant-Speed-Prop. |
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