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Aircraft Maintenance
TroubleShoot > Aircraft
Turbocharger & Controller
Cessna 401A, 402A 1969
1. Fixed absolute pressure/pressure ratio system.
2. Turbo mounted above crankcase oil level. Scavenged oil return.
3. The fixed absolute pressure controller hydraulically regulates
the wastegate opening for all engine. The controller senses deck
and ambient pressures and compares them to a referenced
absolute pressure. When the ratio of outlet to ambient
pressure exceeds a preset proportion, the controller opens the
wastegate and lowers turbo output.
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