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Maintenance TroubleShoot > Aircraft
Turbocharger & Controller
Aero Commander 112TCA
Manually controlled mechanical interconnect turbocharger
2. A mechanical interconnect between the exhaust waste gate valve and carburetor
butterfly which is operated by the pilot's throttle control. The relationship
of the wastegate position to butterfly position is such that at ground
level, the rated manifold pressure and power occur at less than full throttle.
This is done so that the throttle can be advanced by the pilot during climb
to maintain rated manifold pressure. A popoff relief valve is installed
between the turbocharger and carburetor to protect the engine if manifold
pressures exceeds the approved limit. During climb at a fixed throttle
condition, manifold pressure will decrease at the rate of approximately
1 inch for each thousand feet. Manifold pressure will respond to leaning
by increasing as mixture is leaned to Best Power, and decrease when further
leaned to Best Economy. Throttle movements should be made slowly with this
type of turbocharger installation.
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