Questions tagged [turbocharged]

A turbocharged engine uses the pressure of its exhaust gasses to actively pump air into the engine, dramatically improving performance at high altitudes.

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3 answers
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Does throttle equal power on a turbocharged piston engine?

On a normal piston engine powered airplane, throttle equals power. If I set the throttle to 50 %, I will get 50 % of the power the engine can develop at the current altitude, temperature, etc. In a ...
3 votes
3 answers
196 views

Does a diesel piston engine's power decrease more slowly with altitude than with an AVGAS engine?

I have a power-altitude curve of the Austro Engine AE-300 provided by manufacturer and I don't know the reason why power decrease lower than other engines. The curve is in the end of the pdf in this ...
3 votes
0 answers
76 views

How does the pressure distribution at the blades of a radial turbocharger look like?

Consider a piston engine equipped with a turbocharger. In the turbine section of the turbocharger, the pressurized exhaust airflow comes from the center (radially) to the blades, then changes ...
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1 vote
1 answer
562 views

Why do we lean the mixture in a turbocharged airplane (C182T)?

An increase in Altitude will result in a decrease of atmospheric pressure -1 in. Hg. / 1000ft (ISA conditions), but with a turbocharged airplane it will keep the pressure constant (+/- MSL pressure) ...
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9 votes
2 answers
1k views

Why does exhaust flow inwards through a radial turbocharger?

In a radial compressor, the air enters centrally and passes outwards, aided by centrifugal force. But, as the diagram shows, in piston-engine superchargers the driving exhaust gas flows inwards ...
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6 votes
1 answer
1k views

What is the difference between Full Throttle Height and Critical Altitude?

My understanding is that "critical altitude" is the density altitude at which the wastegate on a turbocharged engine is fully closed, so any climb will result in a decrease in manifold ...
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4 votes
2 answers
257 views

How common are gear-driven or belt-driven superchargers in modern aircraft?

How common are gear-driven superchargers in modern piston-engine aircraft, either alone or in combination with exhaust-driven turbochargers? What are some examples of modern aircraft that use them? Is ...
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2 votes
2 answers
236 views

In the modern aviation context, is the word "supercharger" generally assumed to mean a gear-driven system rather than an exhaust-driven system?

In the modern aviation context, is the word "supercharger" generally assumed to mean a gear-driven system rather than an exhaust-driven system? At one time the word "supercharger" often was used to ...
  • 17.5k
2 votes
1 answer
570 views

Did any WWII aircraft only use a turbocharger but not a supercharger?

In doing some basic research, I have concluded that all WW II aircraft equipped with turbochargers also used mechanical driven centrifugal superchargers. These include the P-38, P-47, B-17, B-24, B-...
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1 vote
1 answer
173 views

Where do the compressed gasses of a charged engine goes?

Good day to you here. I'm working on a modified version of 2-stroke engine. My plan is to use a supercharger for the scavenging process, instead of the conventional Crank case scavenging technique, ...
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4 votes
0 answers
662 views

Can a turbo aircraft be converted to non-turbo?

I'm specifically thinking about the Arrow III. There are hundreds or possibly thousands of turbo Arrow III's, but almost no non-turbos. Could I buy an Arrow III Turbo (PA-28R-201T) that is at TBO ...
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5 votes
4 answers
955 views

I overboosted an engine in a Mooney 231 - do I need to do an inspection?

I have an intercooler, but no wastegate. Manifold pressure was not controlled on takeoff and went to 50. The max is 37! If overboosting doesn't really exist because the relief valve opens, then how ...
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11 votes
2 answers
6k views

To a pilot, does turbocharging differ from supercharging?

When it comes to operating an aircraft, what are the practical differences between a turbocharged engine and a supercharged engine? I'm aware of the mechanics - turbochargers being exhaust-driven, ...
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9 votes
3 answers
2k views

How do turbochargers aid engine performance as density altitude increases?

How do turbochargers improve engine performance at high altitudes / density altitudes? Could you also address how this benefit could become a liability at low density altitudes, for example when the ...