An exhaust system and silencer developed for the Socata TB10 fleet of France’s national flight school has now gone on sale. The Atelier Chabord 4-into-1 exhaust and silencer reduces the noise of the aircraft without reducing the power output. In fact, the French exhaust specialist claims a slight power increase.
The exhaust and silencer kit kit consists of Inconel exhaust pipes connected to a merge collector manifold – the 4-into-1 collector – that feeds into an extender pipe on which the silencer is installed.
Primary exhaust pipes of the same length are designed to remove static pressure and thereby increase engine power while reducing vibration. The system’s 4-into-1 collector increases engine torque by mixing the exhaust gas flow, which also contributes to the higher power levels. The gas flow provides carburetor and cabin heating as well.
Atelier Chabord’s silencer has a perforated sheet metal expansion chamber with soundproofing material. It is installed on flexible mountings that contribute to vibration dampening. It was developed to meet a request from France’s National School of Civil Aviation (ENAC) for its fleet of 20 Socata TB10 Tobago aircraft, with the requirement to reduce noise levels without loss of performance.
Daher’s Airplane Business Unit and Atelier Chabord are jointly marketing the product, which has received a Supplemental Type Certificate (STC) from the European Aviation Safety Agency (EASA) for use on TB10 Tobago models equipped with the Lycoming O-360-A1AD engine. That’s nearly 700 aircraft in service.
“In addition to the firm commitment of supporting our customers, Daher’s strategy is to develop product engineering services with the latest technological advances,” said Nicolas Chabbert, Senior Vice President of Daher’s Airplane Business Unit.
“By marketing this exhaust silencer kit, we enable owners and operators to fly their Socata aircraft in the best conditions – in this case, by reducing noise levels.”
Located near the airport of Annecy (Haute Savoie), Atelier Chabord also produces exahust and silencer kits for these aircraft:
- Cessna 150, 152 and 172
- Jodel D119, DR1050 and Mousquetaire D140
- Rallye 150 and 180 hp
- Robin DR400 (120 and 180 hp), and DR460