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Engine Theory: Modifications
...hardware. Closing the Flight Plan We hope you found the Engine Theory series useful. Suggestions for additional articles should be sent to [email protected] with Engine Theory in the subject line....
Engine Theory: Engine Cooling-Avoiding Meltdown
...be best for the engine to run as hot as possible? The short answer is yes—witness jet engines—but we don’t have practical materials to build such piston engines out of....
Engine Theory: Basic Layout
...necessary. Duty cycle is another fundamental driving aircraft engine design. The term is engineer-speak for what percentage of time the engine spends producing maximum power. For example, auto engines are...
Engine Theory: Direct vs. Geared
...chattering engine and heavily loaded propeller. Especially vulnerable are those periods when the engine/prop combination are unloaded relative to each other: the engine isn’t driving the prop, and the prop...
Engine Theory: Oil System Design
...pump does in a wet sump engine. Rotax engines are dry-sumped and therefore store their oil in a vertically mounted round tank separate from the engine. Oil enters the tank...
Engine Theory: Forced induction
...system cannot maintain sea level power anymore (remember, all engines are naturally aspirated upstream of the supercharger). This is that engine’s critical altitude, and above it a supercharged engine’s power...
Engine Theory: Oil
...through the engine and hot oil through an oil-to-air oil cooler before letting it go through the engine. Thus, oil temperature on these engines is a minimum of 185F, except...
Engine Theory: Management
...is fixed. It does not vary with engine rpm (luckily for magnetos, airplane engines run in very narrow rpm ranges) or other conditions, namely how much the engine is loaded...
Engine Theory: Carburetion
...to sleep by last month’s overview of aircraft engine principles will recall a piston engine’s working medium is air. This month we’ll examine how the engine breathes in its air...
Engine Theory: Fuel Injection
...everybody with Bosch direct-cylinder mechanical fuel injection (a result of diesel engine development). Attempts at multi-port fuel injecting Allied airplane engines were mostly unsuccessful or not developed in time (your...
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