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Echappements Chabord > certified aviation > Cessna 172 180 ch Exhaust

Cessna 172 180 ch Exhaust

Exhaust connected type 4 in 1 with, four primary tubes of an identical length of 850m joined together in a Collector then in a tail pipe. A rotating tube allows to absorb the mobility between the primary Exhaust and the Silencer installed under the cockpit.

The respect of the identity of the lengths of the primary tubes allows an equivalent output for each cylinder, bringing a gain on the fuel consumption (approximately 10% at equal performances) while decreasing the engine vibrations for a better comfort inside the cockpit.

The thermal recovery of the exhaust gas flow supplies the cabin heater. Intake heater box and cabin heater box installed respectively on leakage tube manifold.
The choice of materials with high thermal resistance ensures excellent reliability.

A revision of the Silencer is required every 600 hours for the necessary inspection of the soundproofing materials.

The installation of such equipment allows to move from Class C to Class A in the Calypso classification.


  • Cessna 172R aircrafts equiped with Lycoming IO-360-L2A  engine and McCauley propeller 1A 170(E)CFA7660,McCauley p1A 170(E)JFA7658,McCauley 1A 170(E)JFA7660,McCauley 1A 170(E)JHA7658,McCauley 1A 170(E)LFA 7570.
  •  Cessna 172R aircrafts equiped with Lycoming IO-360-A3A engine and McCauley propeller 1A 170(E)CFA7660,
  •  Cessna 172S aircrafts equiped with Lycoming IO-360-L2A engine and McCauley propeller 1A 170(E)JHA7660,Mt Propeller MTV-18-B-183-17


These pictures were taken during the assembly of the first Exhaust on a Cessna 172 S aircraft of the Paul Tissandier flying club in Toussus le Noble


Materials: Inconel 625, Stainless steel 316L, steel 15CDV6
Climb speed gain: 11 %
Consumption gain: 10 %
Motorisation:  Lycoming IO-360-L2A/A3A engine
Approval: STC n° 10039166 REV 1
Applicability:  CESSNA 172S/Cessna 172R 180CH aircrafts

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